VGA resume & thaw (wake up from S3 & S4) broken - kernel exclusively

VGA resume & thaw (wake up from S3 & S4) broken - kernel exclusively

[poma]

Actually I have nothing to show cause logs are all OK.
Haha, it seems to me that the bugs become intelligent.

3.15.10-201.fc20.x86_64
3.16.2-200.fc20.x86_64
3.17.0-0.rc4.git3.2.fc22.1.x86_64
 nouveau  [     DRM] suspending display...
 nouveau  [     DRM] unpinning framebuffer(s)...
 nouveau  [     DRM] evicting buffers...
 nouveau  [     DRM] waiting for kernel channels to go idle...
 nouveau  [     DRM] suspending client object trees...
 nouveau  [     DRM] suspending kernel object tree...
...
 nouveau  [     DRM] re-enabling device...
 nouveau  [     DRM] resuming kernel object tree...
 nouveau  [   VBIOS][0000:02:00.0] running init tables
 nouveau  [  PTHERM][0000:02:00.0] fan management: automatic
 nouveau  [     CLK][0000:02:00.0] --: core 566 MHz shader 1400 MHz memory 399 MHz
 nouveau  [     DRM] resuming client object trees...
 nouveau  [     DRM] resuming display...
 nouveau 0000:02:00.0: no hotplug settings from platform
 nouveau 0000:02:00.0: no hotplug settings from platform

Logs(dmesg) are literally identical.

3.15.10-201.fc20.x86_64 - nouveau(fb) resume & thaw PASSED, and that's all what works.
        Kernels >= 3.16 - nouveau(fb) resume & thaw BROKEN
            ALL Kernels - vesa(fb)    resume & thaw BROKEN.


Have a nice weekend folks.


poma

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel exclusively

[poma]

On 13.09.2014 06:57, poma wrote:
> 
> Actually I have nothing to show cause logs are all OK.
> Haha, it seems to me that the bugs become intelligent.
> 
> 3.15.10-201.fc20.x86_64
> 3.16.2-200.fc20.x86_64
> 3.17.0-0.rc4.git3.2.fc22.1.x86_64
>  nouveau  [     DRM] suspending display...
>  nouveau  [     DRM] unpinning framebuffer(s)...
>  nouveau  [     DRM] evicting buffers...
>  nouveau  [     DRM] waiting for kernel channels to go idle...
>  nouveau  [     DRM] suspending client object trees...
>  nouveau  [     DRM] suspending kernel object tree...
> ...
>  nouveau  [     DRM] re-enabling device...
>  nouveau  [     DRM] resuming kernel object tree...
>  nouveau  [   VBIOS][0000:02:00.0] running init tables
>  nouveau  [  PTHERM][0000:02:00.0] fan management: automatic
>  nouveau  [     CLK][0000:02:00.0] --: core 566 MHz shader 1400 MHz memory 399 MHz
>  nouveau  [     DRM] resuming client object trees...
>  nouveau  [     DRM] resuming display...
>  nouveau 0000:02:00.0: no hotplug settings from platform
>  nouveau 0000:02:00.0: no hotplug settings from platform
> 
> Logs(dmesg) are literally identical.
> 
> 3.15.10-201.fc20.x86_64 - nouveau(fb) resume & thaw PASSED, and that's all what works.
>         Kernels >= 3.16 - nouveau(fb) resume & thaw BROKEN
>             ALL Kernels - vesa(fb)    resume & thaw BROKEN.
> 
> 

Excusez-moi, 
BROKEN == The display remains OFF.


poma

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[poma]

On 13.09.2014 07:02, poma wrote:
> On 13.09.2014 06:57, poma wrote:
>>
>> Actually I have nothing to show cause logs are all OK.
>> Haha, it seems to me that the bugs become intelligent.
>>
>> 3.15.10-201.fc20.x86_64
>> 3.16.2-200.fc20.x86_64
>> 3.17.0-0.rc4.git3.2.fc22.1.x86_64
>>  nouveau  [     DRM] suspending display...
>>  nouveau  [     DRM] unpinning framebuffer(s)...
>>  nouveau  [     DRM] evicting buffers...
>>  nouveau  [     DRM] waiting for kernel channels to go idle...
>>  nouveau  [     DRM] suspending client object trees...
>>  nouveau  [     DRM] suspending kernel object tree...
>> ...
>>  nouveau  [     DRM] re-enabling device...
>>  nouveau  [     DRM] resuming kernel object tree...
>>  nouveau  [   VBIOS][0000:02:00.0] running init tables
>>  nouveau  [  PTHERM][0000:02:00.0] fan management: automatic
>>  nouveau  [     CLK][0000:02:00.0] --: core 566 MHz shader 1400 MHz memory 399 MHz
>>  nouveau  [     DRM] resuming client object trees...
>>  nouveau  [     DRM] resuming display...
>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>
>> Logs(dmesg) are literally identical.
>>
>> 3.15.10-201.fc20.x86_64 - nouveau(fb) resume & thaw PASSED, and that's all what works.
>>         Kernels >= 3.16 - nouveau(fb) resume & thaw BROKEN
>>             ALL Kernels - vesa(fb)    resume & thaw BROKEN.
>>
>>
> 
> Excusez-moi, 
> BROKEN == The display remains OFF.
> 

More precisely stated it looks like this:

- Last kernel with working resume/thaw
  http://koji.fedoraproject.org/koji/buildinfo?buildID=538208
  kernel-3.16.0-0.rc0.git9.1.fc21
  2014-06-13

- First kernel with broken resume/thaw
  kernel-3.16.0-0.rc0.git10.1.fc21
  http://koji.fedoraproject.org/koji/buildinfo?buildID=538244
  http://pkgs.fedoraproject.org/repo/pkgs/kernel/patch-3.15-git10.xz/f98fb42e79c966f8e139e27b61d933e0/patch-3.15-git10.xz
  2014-06-13

The only difference in dmesg between working and broken kernel module with drm.debug=14 is
 [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
 [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected

- git commit probably introduced breakage
  drm/nouveau/disp: add internal representaion of output paths and connectors
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm?id=7a014a
  https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau?id=7a014a
  2014-06-11

- Ref. fdbs
  Video failed on resume from suspend
  https://bugs.freedesktop.org/show_bug.cgi?id=77599
  https://bugs.freedesktop.org/show_bug.cgi?id=80506


poma

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[Ilia Mirkin]

On Sat, Sep 13, 2014 at 4:52 PM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On 13.09.2014 07:02, poma wrote:
>> On 13.09.2014 06:57, poma wrote:
>>>
>>> Actually I have nothing to show cause logs are all OK.
>>> Haha, it seems to me that the bugs become intelligent.
>>>
>>> 3.15.10-201.fc20.x86_64
>>> 3.16.2-200.fc20.x86_64
>>> 3.17.0-0.rc4.git3.2.fc22.1.x86_64
>>>  nouveau  [     DRM] suspending display...
>>>  nouveau  [     DRM] unpinning framebuffer(s)...
>>>  nouveau  [     DRM] evicting buffers...
>>>  nouveau  [     DRM] waiting for kernel channels to go idle...
>>>  nouveau  [     DRM] suspending client object trees...
>>>  nouveau  [     DRM] suspending kernel object tree...
>>> ...
>>>  nouveau  [     DRM] re-enabling device...
>>>  nouveau  [     DRM] resuming kernel object tree...
>>>  nouveau  [   VBIOS][0000:02:00.0] running init tables
>>>  nouveau  [  PTHERM][0000:02:00.0] fan management: automatic
>>>  nouveau  [     CLK][0000:02:00.0] --: core 566 MHz shader 1400 MHz memory 399 MHz
>>>  nouveau  [     DRM] resuming client object trees...
>>>  nouveau  [     DRM] resuming display...
>>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>>
>>> Logs(dmesg) are literally identical.
>>>
>>> 3.15.10-201.fc20.x86_64 - nouveau(fb) resume & thaw PASSED, and that's all what works.
>>>         Kernels >= 3.16 - nouveau(fb) resume & thaw BROKEN
>>>             ALL Kernels - vesa(fb)    resume & thaw BROKEN.
>>>
>>>
>>
>> Excusez-moi,
>> BROKEN == The display remains OFF.
>>
>
> More precisely stated it looks like this:
>
> - Last kernel with working resume/thaw
>   http://koji.fedoraproject.org/koji/buildinfo?buildID=538208
>   kernel-3.16.0-0.rc0.git9.1.fc21
>   2014-06-13
>
> - First kernel with broken resume/thaw
>   kernel-3.16.0-0.rc0.git10.1.fc21
>   http://koji.fedoraproject.org/koji/buildinfo?buildID=538244
>   http://pkgs.fedoraproject.org/repo/pkgs/kernel/patch-3.15-git10.xz/f98fb42e79c966f8e139e27b61d933e0/patch-3.15-git10.xz
>   2014-06-13
>
> The only difference in dmesg between working and broken kernel module with drm.debug=14 is
>  [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>  [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>
> - git commit probably introduced breakage
>   drm/nouveau/disp: add internal representaion of output paths and connectors
>   https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm?id=7a014a
>   https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau?id=7a014a
>   2014-06-11

Do you have any special reason to believe this to be the culprit
(besides the fact that it has something to do with hpd)? Can you do an
actual bisect to confirm?

Thanks,

  -ilia

>
> - Ref. fdbs
>   Video failed on resume from suspend
>   https://bugs.freedesktop.org/show_bug.cgi?id=77599
>   https://bugs.freedesktop.org/show_bug.cgi?id=80506
>
>
> poma
>

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[poma]

On 13.09.2014 22:58, Ilia Mirkin wrote:
> On Sat, Sep 13, 2014 at 4:52 PM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> On 13.09.2014 07:02, poma wrote:
>>> On 13.09.2014 06:57, poma wrote:
>>>>
>>>> Actually I have nothing to show cause logs are all OK.
>>>> Haha, it seems to me that the bugs become intelligent.
>>>>
>>>> 3.15.10-201.fc20.x86_64
>>>> 3.16.2-200.fc20.x86_64
>>>> 3.17.0-0.rc4.git3.2.fc22.1.x86_64
>>>>  nouveau  [     DRM] suspending display...
>>>>  nouveau  [     DRM] unpinning framebuffer(s)...
>>>>  nouveau  [     DRM] evicting buffers...
>>>>  nouveau  [     DRM] waiting for kernel channels to go idle...
>>>>  nouveau  [     DRM] suspending client object trees...
>>>>  nouveau  [     DRM] suspending kernel object tree...
>>>> ...
>>>>  nouveau  [     DRM] re-enabling device...
>>>>  nouveau  [     DRM] resuming kernel object tree...
>>>>  nouveau  [   VBIOS][0000:02:00.0] running init tables
>>>>  nouveau  [  PTHERM][0000:02:00.0] fan management: automatic
>>>>  nouveau  [     CLK][0000:02:00.0] --: core 566 MHz shader 1400 MHz memory 399 MHz
>>>>  nouveau  [     DRM] resuming client object trees...
>>>>  nouveau  [     DRM] resuming display...
>>>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>>>
>>>> Logs(dmesg) are literally identical.
>>>>
>>>> 3.15.10-201.fc20.x86_64 - nouveau(fb) resume & thaw PASSED, and that's all what works.
>>>>         Kernels >= 3.16 - nouveau(fb) resume & thaw BROKEN
>>>>             ALL Kernels - vesa(fb)    resume & thaw BROKEN.
>>>>
>>>>
>>>
>>> Excusez-moi,
>>> BROKEN == The display remains OFF.
>>>
>>
>> More precisely stated it looks like this:
>>
>> - Last kernel with working resume/thaw
>>   http://koji.fedoraproject.org/koji/buildinfo?buildID=538208
>>   kernel-3.16.0-0.rc0.git9.1.fc21
>>   2014-06-13
>>
>> - First kernel with broken resume/thaw
>>   kernel-3.16.0-0.rc0.git10.1.fc21
>>   http://koji.fedoraproject.org/koji/buildinfo?buildID=538244
>>   http://pkgs.fedoraproject.org/repo/pkgs/kernel/patch-3.15-git10.xz/f98fb42e79c966f8e139e27b61d933e0/patch-3.15-git10.xz
>>   2014-06-13
>>
>> The only difference in dmesg between working and broken kernel module with drm.debug=14 is
>>  [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>>  [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>>
>> - git commit probably introduced breakage
>>   drm/nouveau/disp: add internal representaion of output paths and connectors
>>   https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm?id=7a014a
>>   https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau?id=7a014a
>>   2014-06-11
> 
> Do you have any special reason to believe this to be the culprit
> (besides the fact that it has something to do with hpd)? Can you do an
> actual bisect to confirm?
> 
> Thanks,
> 
>   -ilia

"hpd" what?
First Fedora Kernel with broken video resume/thaw aka FFKWBVRT i.e. kernel-3.16.0-0.rc0.git10.1.fc21 
comes with 'patch-3.15-git10.xz' which closely resembles "git/commit/drivers/gpu/drm/nouveau?id=7a014a".
Simple as that. 
Why are you asking me that bisect formality, man is it not enough that I tested two dozen kernels.


poma

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[Roy Spliet]

Dear Poma,

Don't get anyone wrong, your input is greatly valued. The reason why 
"we" (nouveau developers) generally ask for a git bisection is because 
we don't know or track specific distributions. Although your search has 
narrowed the problem down (thanks for that!), we don't know how big the 
difference is between kernel-3.16.0-0.rc0.git9.1.fc21 and 
kernel-3.16.0-0.rc0.git10.1.fc21. Is the difference literally just that 
one patch? Or were there more patches to nouveau or drm that might have 
been the culprit? So far I haven't succeeded in finding the exact 
differences between the two kernels. Git bisect on the upstream kernel 
on the other hand will always point at the precise patch that broke the 
kernel, narrowing down the search space of the bug for developers thus 
reducing the time it takes to fix your issue. Unless developers can 
reproduce your issue, Unfortunately the user is the person who has to do 
the bisecting.
So in short: narrowing down the search space often saves a lot of time 
of the developer, reducing the time it takes to fix your issue!
Thus, if you can find the time to perform a git bisect (with the right 
good/bad markers it really should not take that many kernels to build), 
or if you can validate that the patch you mention *really* is the only 
difference between the two kernels, it'd be greatly appreciated.
Thanks! Yours,

Roy

Op 13-09-14 om 23:25 schreef poma:
> On 13.09.2014 22:58, Ilia Mirkin wrote:
>> On Sat, Sep 13, 2014 at 4:52 PM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>> On 13.09.2014 07:02, poma wrote:
>>>> On 13.09.2014 06:57, poma wrote:
>>>>> Actually I have nothing to show cause logs are all OK.
>>>>> Haha, it seems to me that the bugs become intelligent.
>>>>>
>>>>> 3.15.10-201.fc20.x86_64
>>>>> 3.16.2-200.fc20.x86_64
>>>>> 3.17.0-0.rc4.git3.2.fc22.1.x86_64
>>>>>   nouveau  [     DRM] suspending display...
>>>>>   nouveau  [     DRM] unpinning framebuffer(s)...
>>>>>   nouveau  [     DRM] evicting buffers...
>>>>>   nouveau  [     DRM] waiting for kernel channels to go idle...
>>>>>   nouveau  [     DRM] suspending client object trees...
>>>>>   nouveau  [     DRM] suspending kernel object tree...
>>>>> ...
>>>>>   nouveau  [     DRM] re-enabling device...
>>>>>   nouveau  [     DRM] resuming kernel object tree...
>>>>>   nouveau  [   VBIOS][0000:02:00.0] running init tables
>>>>>   nouveau  [  PTHERM][0000:02:00.0] fan management: automatic
>>>>>   nouveau  [     CLK][0000:02:00.0] --: core 566 MHz shader 1400 MHz memory 399 MHz
>>>>>   nouveau  [     DRM] resuming client object trees...
>>>>>   nouveau  [     DRM] resuming display...
>>>>>   nouveau 0000:02:00.0: no hotplug settings from platform
>>>>>   nouveau 0000:02:00.0: no hotplug settings from platform
>>>>>
>>>>> Logs(dmesg) are literally identical.
>>>>>
>>>>> 3.15.10-201.fc20.x86_64 - nouveau(fb) resume & thaw PASSED, and that's all what works.
>>>>>          Kernels >= 3.16 - nouveau(fb) resume & thaw BROKEN
>>>>>              ALL Kernels - vesa(fb)    resume & thaw BROKEN.
>>>>>
>>>>>
>>>> Excusez-moi,
>>>> BROKEN == The display remains OFF.
>>>>
>>> More precisely stated it looks like this:
>>>
>>> - Last kernel with working resume/thaw
>>>    http://koji.fedoraproject.org/koji/buildinfo?buildID=538208
>>>    kernel-3.16.0-0.rc0.git9.1.fc21
>>>    2014-06-13
>>>
>>> - First kernel with broken resume/thaw
>>>    kernel-3.16.0-0.rc0.git10.1.fc21
>>>    http://koji.fedoraproject.org/koji/buildinfo?buildID=538244
>>>    http://pkgs.fedoraproject.org/repo/pkgs/kernel/patch-3.15-git10.xz/f98fb42e79c966f8e139e27b61d933e0/patch-3.15-git10.xz
>>>    2014-06-13
>>>
>>> The only difference in dmesg between working and broken kernel module with drm.debug=14 is
>>>   [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>>>   [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>>>
>>> - git commit probably introduced breakage
>>>    drm/nouveau/disp: add internal representaion of output paths and connectors
>>>    https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm?id=7a014a
>>>    https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau?id=7a014a
>>>    2014-06-11
>> Do you have any special reason to believe this to be the culprit
>> (besides the fact that it has something to do with hpd)? Can you do an
>> actual bisect to confirm?
>>
>> Thanks,
>>
>>    -ilia
> "hpd" what?
> First Fedora Kernel with broken video resume/thaw aka FFKWBVRT i.e. kernel-3.16.0-0.rc0.git10.1.fc21
> comes with 'patch-3.15-git10.xz' which closely resembles "git/commit/drivers/gpu/drm/nouveau?id=7a014a".
> Simple as that.
> Why are you asking me that bisect formality, man is it not enough that I tested two dozen kernels.
>
>
> poma
>
>
> _______________________________________________
> Nouveau mailing list
> Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
> http://lists.freedesktop.org/mailman/listinfo/nouveau
>

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[Ilia Mirkin]

On Sat, Sep 13, 2014 at 5:25 PM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On 13.09.2014 22:58, Ilia Mirkin wrote:
>> On Sat, Sep 13, 2014 at 4:52 PM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>> On 13.09.2014 07:02, poma wrote:
>>>> On 13.09.2014 06:57, poma wrote:
>>>>>
>>>>> Actually I have nothing to show cause logs are all OK.
>>>>> Haha, it seems to me that the bugs become intelligent.
>>>>>
>>>>> 3.15.10-201.fc20.x86_64
>>>>> 3.16.2-200.fc20.x86_64
>>>>> 3.17.0-0.rc4.git3.2.fc22.1.x86_64
>>>>>  nouveau  [     DRM] suspending display...
>>>>>  nouveau  [     DRM] unpinning framebuffer(s)...
>>>>>  nouveau  [     DRM] evicting buffers...
>>>>>  nouveau  [     DRM] waiting for kernel channels to go idle...
>>>>>  nouveau  [     DRM] suspending client object trees...
>>>>>  nouveau  [     DRM] suspending kernel object tree...
>>>>> ...
>>>>>  nouveau  [     DRM] re-enabling device...
>>>>>  nouveau  [     DRM] resuming kernel object tree...
>>>>>  nouveau  [   VBIOS][0000:02:00.0] running init tables
>>>>>  nouveau  [  PTHERM][0000:02:00.0] fan management: automatic
>>>>>  nouveau  [     CLK][0000:02:00.0] --: core 566 MHz shader 1400 MHz memory 399 MHz
>>>>>  nouveau  [     DRM] resuming client object trees...
>>>>>  nouveau  [     DRM] resuming display...
>>>>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>>>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>>>>
>>>>> Logs(dmesg) are literally identical.
>>>>>
>>>>> 3.15.10-201.fc20.x86_64 - nouveau(fb) resume & thaw PASSED, and that's all what works.
>>>>>         Kernels >= 3.16 - nouveau(fb) resume & thaw BROKEN
>>>>>             ALL Kernels - vesa(fb)    resume & thaw BROKEN.
>>>>>
>>>>>
>>>>
>>>> Excusez-moi,
>>>> BROKEN == The display remains OFF.
>>>>
>>>
>>> More precisely stated it looks like this:
>>>
>>> - Last kernel with working resume/thaw
>>>   http://koji.fedoraproject.org/koji/buildinfo?buildID=538208
>>>   kernel-3.16.0-0.rc0.git9.1.fc21
>>>   2014-06-13
>>>
>>> - First kernel with broken resume/thaw
>>>   kernel-3.16.0-0.rc0.git10.1.fc21
>>>   http://koji.fedoraproject.org/koji/buildinfo?buildID=538244
>>>   http://pkgs.fedoraproject.org/repo/pkgs/kernel/patch-3.15-git10.xz/f98fb42e79c966f8e139e27b61d933e0/patch-3.15-git10.xz
>>>   2014-06-13
>>>
>>> The only difference in dmesg between working and broken kernel module with drm.debug=14 is
>>>  [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>>>  [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>>>
>>> - git commit probably introduced breakage
>>>   drm/nouveau/disp: add internal representaion of output paths and connectors
>>>   https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm?id=7a014a
>>>   https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau?id=7a014a
>>>   2014-06-11
>>
>> Do you have any special reason to believe this to be the culprit
>> (besides the fact that it has something to do with hpd)? Can you do an
>> actual bisect to confirm?
>>
>> Thanks,
>>
>>   -ilia
>
> "hpd" what?

hpd = hotplug detect

> First Fedora Kernel with broken video resume/thaw aka FFKWBVRT i.e. kernel-3.16.0-0.rc0.git10.1.fc21
> comes with 'patch-3.15-git10.xz' which closely resembles "git/commit/drivers/gpu/drm/nouveau?id=7a014a".
> Simple as that.

I see. So no reason to believe that it's not e.g. 20014cb or 377b1f1
or any one of the other patches pulled in by merge commit bc1dfff04a?

> Why are you asking me that bisect formality, man is it not enough that I tested two dozen kernels.

Doing a bisect would involve half as many kernels... Knowing the exact
commit that breaks things is a fairly useful debug tactic, and
drastically increases the chances that a problem gets fixed. Not sure
why you're referring to it as a formality.

git bisect start v3.16-rc1 v3.15 -- drivers/gpu/drm/nouveau

(Pro tip: use a config tailored to your machine rather than a distro
config if you want to spend 5 min/compile instead of 1 hour/compile)

Or you can wait and hope that someone else will have the same problem
and works out the commit that causes it.

Or you can see if it has already been fixed in the latest kernels. Or
try the experimental repo at
http://cgit.freedesktop.org/~darktama/nouveau/ (a bit of a pain to
build, unfortunately, you need some unknown kernel version to build
against, usually ~latest works).

Good luck,

  -ilia

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[poma]

On 13.09.2014 23:46, Ilia Mirkin wrote:
> On Sat, Sep 13, 2014 at 5:25 PM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> On 13.09.2014 22:58, Ilia Mirkin wrote:
>>> On Sat, Sep 13, 2014 at 4:52 PM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>>> On 13.09.2014 07:02, poma wrote:
>>>>> On 13.09.2014 06:57, poma wrote:
>>>>>>
>>>>>> Actually I have nothing to show cause logs are all OK.
>>>>>> Haha, it seems to me that the bugs become intelligent.
>>>>>>
>>>>>> 3.15.10-201.fc20.x86_64
>>>>>> 3.16.2-200.fc20.x86_64
>>>>>> 3.17.0-0.rc4.git3.2.fc22.1.x86_64
>>>>>>  nouveau  [     DRM] suspending display...
>>>>>>  nouveau  [     DRM] unpinning framebuffer(s)...
>>>>>>  nouveau  [     DRM] evicting buffers...
>>>>>>  nouveau  [     DRM] waiting for kernel channels to go idle...
>>>>>>  nouveau  [     DRM] suspending client object trees...
>>>>>>  nouveau  [     DRM] suspending kernel object tree...
>>>>>> ...
>>>>>>  nouveau  [     DRM] re-enabling device...
>>>>>>  nouveau  [     DRM] resuming kernel object tree...
>>>>>>  nouveau  [   VBIOS][0000:02:00.0] running init tables
>>>>>>  nouveau  [  PTHERM][0000:02:00.0] fan management: automatic
>>>>>>  nouveau  [     CLK][0000:02:00.0] --: core 566 MHz shader 1400 MHz memory 399 MHz
>>>>>>  nouveau  [     DRM] resuming client object trees...
>>>>>>  nouveau  [     DRM] resuming display...
>>>>>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>>>>>  nouveau 0000:02:00.0: no hotplug settings from platform
>>>>>>
>>>>>> Logs(dmesg) are literally identical.
>>>>>>
>>>>>> 3.15.10-201.fc20.x86_64 - nouveau(fb) resume & thaw PASSED, and that's all what works.
>>>>>>         Kernels >= 3.16 - nouveau(fb) resume & thaw BROKEN
>>>>>>             ALL Kernels - vesa(fb)    resume & thaw BROKEN.
>>>>>>
>>>>>>
>>>>>
>>>>> Excusez-moi,
>>>>> BROKEN == The display remains OFF.
>>>>>
>>>>
>>>> More precisely stated it looks like this:
>>>>
>>>> - Last kernel with working resume/thaw
>>>>   http://koji.fedoraproject.org/koji/buildinfo?buildID=538208
>>>>   kernel-3.16.0-0.rc0.git9.1.fc21
>>>>   2014-06-13
>>>>
>>>> - First kernel with broken resume/thaw
>>>>   kernel-3.16.0-0.rc0.git10.1.fc21
>>>>   http://koji.fedoraproject.org/koji/buildinfo?buildID=538244
>>>>   http://pkgs.fedoraproject.org/repo/pkgs/kernel/patch-3.15-git10.xz/f98fb42e79c966f8e139e27b61d933e0/patch-3.15-git10.xz
>>>>   2014-06-13
>>>>
>>>> The only difference in dmesg between working and broken kernel module with drm.debug=14 is
>>>>  [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>>>>  [drm:drm_helper_hpd_irq_event] [CONNECTOR:18:DVI-I-1] status updated from connected to connected
>>>>
>>>> - git commit probably introduced breakage
>>>>   drm/nouveau/disp: add internal representaion of output paths and connectors
>>>>   https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm?id=7a014a
>>>>   https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau?id=7a014a
>>>>   2014-06-11
>>>
>>> Do you have any special reason to believe this to be the culprit
>>> (besides the fact that it has something to do with hpd)? Can you do an
>>> actual bisect to confirm?
>>>
>>> Thanks,
>>>
>>>   -ilia
>>
>> "hpd" what?
> 
> hpd = hotplug detect
> 
>> First Fedora Kernel with broken video resume/thaw aka FFKWBVRT i.e. kernel-3.16.0-0.rc0.git10.1.fc21
>> comes with 'patch-3.15-git10.xz' which closely resembles "git/commit/drivers/gpu/drm/nouveau?id=7a014a".
>> Simple as that.
> 
> I see. So no reason to believe that it's not e.g. 20014cb or 377b1f1
> or any one of the other patches pulled in by merge commit bc1dfff04a?
> 
>> Why are you asking me that bisect formality, man is it not enough that I tested two dozen kernels.
> 
> Doing a bisect would involve half as many kernels... Knowing the exact
> commit that breaks things is a fairly useful debug tactic, and
> drastically increases the chances that a problem gets fixed. Not sure
> why you're referring to it as a formality.
> 
> git bisect start v3.16-rc1 v3.15 -- drivers/gpu/drm/nouveau
> 
> (Pro tip: use a config tailored to your machine rather than a distro
> config if you want to spend 5 min/compile instead of 1 hour/compile)
> 
> Or you can wait and hope that someone else will have the same problem
> and works out the commit that causes it.
> 
> Or you can see if it has already been fixed in the latest kernels. Or
> try the experimental repo at
> http://cgit.freedesktop.org/~darktama/nouveau/ (a bit of a pain to
> build, unfortunately, you need some unknown kernel version to build
> against, usually ~latest works).
> 
> Good luck,
> 
>   -ilia
> 

Man, I am not a kernel developer, I do not understand what you're saying.
I did the best I could and spent a lot of time besides.
If that's not enough, so be it.
Thank you very much.


poma

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[poma]

On 13.09.2014 23:45, Roy Spliet wrote:
> Dear Poma,
> 
> Don't get anyone wrong, your input is greatly valued. The reason why 
> "we" (nouveau developers) generally ask for a git bisection is because 
> we don't know or track specific distributions. Although your search has 
> narrowed the problem down (thanks for that!), we don't know how big the 
> difference is between kernel-3.16.0-0.rc0.git9.1.fc21 and 
> kernel-3.16.0-0.rc0.git10.1.fc21. Is the difference literally just that 
> one patch? Or were there more patches to nouveau or drm that might have 
> been the culprit? So far I haven't succeeded in finding the exact 
> differences between the two kernels. Git bisect on the upstream kernel 
> on the other hand will always point at the precise patch that broke the 
> kernel, narrowing down the search space of the bug for developers thus 
> reducing the time it takes to fix your issue. Unless developers can 
> reproduce your issue, Unfortunately the user is the person who has to do 
> the bisecting.
> So in short: narrowing down the search space often saves a lot of time 
> of the developer, reducing the time it takes to fix your issue!
> Thus, if you can find the time to perform a git bisect (with the right 
> good/bad markers it really should not take that many kernels to build), 
> or if you can validate that the patch you mention *really* is the only 
> difference between the two kernels, it'd be greatly appreciated.
> Thanks! Yours,
> 
> Roy
> 

Are you saying Fedora kernels aren't valid for testing purposes!?
Madre mía!

Moreover, this regression is not just for my device.
Apart from Ben, in "Red Fedora" there are several skilled kernel developers.
Why they do not help!?
Everything is on the user's back, really?


WORKING VIDEO RESUME/THAW KERNEL:

$ ls -1 kernel-3.16.0-0.rc0.git9.1.fc21.src/*.xz 
kernel-3.16.0-0.rc0.git9.1.fc21.src/linux-3.15.tar.xz
kernel-3.16.0-0.rc0.git9.1.fc21.src/patch-3.15-git9.xz

$ xzgrep -P '(?=.*^diff)(?=.*nouveau)' kernel-3.16.0-0.rc0.git9.1.fc21.src/patch-3.15-git9.xz
diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c

$ grep nouveau kernel-3.16.0-0.rc0.git9.1.fc21.src/*.patch
kernel-3.16.0-0.rc0.git9.1.fc21.src/acpi-video-Add-use-native-backlight-quirk-for-the-Th.patch:"nouveau: Don't check acpi_video_backlight_support() before registering backlight"

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

BROKEN VIDEO RESUME/THAW KERNEL:

$ ls -1 kernel-3.16.0-0.rc0.git10.1.fc21.src/*.xz 
kernel-3.16.0-0.rc0.git10.1.fc21.src/linux-3.15.tar.xz
kernel-3.16.0-0.rc0.git10.1.fc21.src/patch-3.15-git10.xz

$ xzgrep -P '(?=.*^diff)(?=.*nouveau)' kernel-3.16.0-0.rc0.git10.1.fc21.src/patch-3.15-git10.xz
diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
diff --git a/drivers/gpu/drm/nouveau/core/core/event.c b/drivers/gpu/drm/nouveau/core/core/event.c
diff --git a/drivers/gpu/drm/nouveau/core/core/object.c b/drivers/gpu/drm/nouveau/core/core/object.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/gm100.c b/drivers/gpu/drm/nouveau/core/engine/device/gm100.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv04.c b/drivers/gpu/drm/nouveau/core/engine/device/nv04.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv10.c b/drivers/gpu/drm/nouveau/core/engine/device/nv10.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv20.c b/drivers/gpu/drm/nouveau/core/engine/device/nv20.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv30.c b/drivers/gpu/drm/nouveau/core/engine/device/nv30.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv40.c b/drivers/gpu/drm/nouveau/core/engine/device/nv40.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv50.c b/drivers/gpu/drm/nouveau/core/engine/device/nv50.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/base.c b/drivers/gpu/drm/nouveau/core/engine/disp/base.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/conn.c b/drivers/gpu/drm/nouveau/core/engine/disp/conn.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/conn.h b/drivers/gpu/drm/nouveau/core/engine/disp/conn.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dport.c b/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dport.h b/drivers/gpu/drm/nouveau/core/engine/disp/dport.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/gm107.c b/drivers/gpu/drm/nouveau/core/engine/disp/gm107.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv04.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv04.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nva0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nva0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c b/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nve0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nve0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvf0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvf0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outp.c b/drivers/gpu/drm/nouveau/core/engine/disp/outp.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outp.h b/drivers/gpu/drm/nouveau/core/engine/disp/outp.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.c b/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.h b/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/piornv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/piornv50.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/priv.h b/drivers/gpu/drm/nouveau/core/engine/disp/priv.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornv94.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornv94.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c b/drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nv04.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nv04.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c b/drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c b/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c b/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/software/nv50.c b/drivers/gpu/drm/nouveau/core/engine/software/nv50.c
diff --git a/drivers/gpu/drm/nouveau/core/engine/software/nv50.h b/drivers/gpu/drm/nouveau/core/engine/software/nv50.h
diff --git a/drivers/gpu/drm/nouveau/core/engine/software/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/software/nvc0.c
diff --git a/drivers/gpu/drm/nouveau/core/include/core/class.h b/drivers/gpu/drm/nouveau/core/include/core/class.h
diff --git a/drivers/gpu/drm/nouveau/core/include/core/event.h b/drivers/gpu/drm/nouveau/core/include/core/event.h
diff --git a/drivers/gpu/drm/nouveau/core/include/engine/disp.h b/drivers/gpu/drm/nouveau/core/include/engine/disp.h
diff --git a/drivers/gpu/drm/nouveau/core/include/engine/fifo.h b/drivers/gpu/drm/nouveau/core/include/engine/fifo.h
diff --git a/drivers/gpu/drm/nouveau/core/include/engine/graph.h b/drivers/gpu/drm/nouveau/core/include/engine/graph.h
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/dp.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/dp.h
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h b/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/base.c b/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c b/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/dp.c b/drivers/gpu/drm/nouveau/core/subdev/bios/dp.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c b/drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h b/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv92.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv92.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h b/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/anx9805.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/anx9805.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv04.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv4e.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv4e.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.h
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv94.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv94.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nvd0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nve0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.h
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv04.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv04.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv94.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv94.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/port.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/port.h
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c b/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nva3.c
diff --git a/drivers/gpu/drm/nouveau/dispnv04/dac.c b/drivers/gpu/drm/nouveau/dispnv04/dac.c
diff --git a/drivers/gpu/drm/nouveau/dispnv04/dfp.c b/drivers/gpu/drm/nouveau/dispnv04/dfp.c
diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c b/drivers/gpu/drm/nouveau/dispnv04/disp.c
diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c
diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.h b/drivers/gpu/drm/nouveau/nouveau_connector.h
diff --git a/drivers/gpu/drm/nouveau/nouveau_crtc.h b/drivers/gpu/drm/nouveau/nouveau_crtc.h
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c
diff --git a/drivers/gpu/drm/nouveau/nouveau_encoder.h b/drivers/gpu/drm/nouveau/nouveau_encoder.h
diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c

$ grep nouveau kernel-3.16.0-0.rc0.git10.1.fc21.src/*.patch
kernel-3.16.0-0.rc0.git10.1.fc21.src/acpi-video-Add-use-native-backlight-quirk-for-the-Th.patch:"nouveau: Don't check acpi_video_backlight_support() before registering backlight"


http://git.linuxtv.org/cgit.cgi/media_build.git
Whether the nouveau project has something like this?


poma

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[Roy Spliet]

Op 14-09-14 om 10:31 schreef poma:
> On 13.09.2014 23:45, Roy Spliet wrote:
>> Dear Poma,
>>
>> Don't get anyone wrong, your input is greatly valued. The reason why
>> "we" (nouveau developers) generally ask for a git bisection is because
>> we don't know or track specific distributions. Although your search has
>> narrowed the problem down (thanks for that!), we don't know how big the
>> difference is between kernel-3.16.0-0.rc0.git9.1.fc21 and
>> kernel-3.16.0-0.rc0.git10.1.fc21. Is the difference literally just that
>> one patch? Or were there more patches to nouveau or drm that might have
>> been the culprit? So far I haven't succeeded in finding the exact
>> differences between the two kernels. Git bisect on the upstream kernel
>> on the other hand will always point at the precise patch that broke the
>> kernel, narrowing down the search space of the bug for developers thus
>> reducing the time it takes to fix your issue. Unless developers can
>> reproduce your issue, Unfortunately the user is the person who has to do
>> the bisecting.
>> So in short: narrowing down the search space often saves a lot of time
>> of the developer, reducing the time it takes to fix your issue!
>> Thus, if you can find the time to perform a git bisect (with the right
>> good/bad markers it really should not take that many kernels to build),
>> or if you can validate that the patch you mention *really* is the only
>> difference between the two kernels, it'd be greatly appreciated.
>> Thanks! Yours,
>>
>> Roy
>>
> Are you saying Fedora kernels aren't valid for testing purposes!?
No, that's not what I'm saying. You used a Fedora kernel which is fairly 
recent and found a bug. However, they're less useful for pinpointing 
your problem to  the offending bit of code, as you demonstrate below.
> Madre mía!
Salud...
>
> Moreover, this regression is not just for my device.
> Apart from Ben, in "Red Fedora" there are several skilled kernel developers.
> Why they do not help!?
> Everything is on the user's back, really?
>
>
> WORKING VIDEO RESUME/THAW KERNEL:
>
> $ ls -1 kernel-3.16.0-0.rc0.git9.1.fc21.src/*.xz
> kernel-3.16.0-0.rc0.git9.1.fc21.src/linux-3.15.tar.xz
> kernel-3.16.0-0.rc0.git9.1.fc21.src/patch-3.15-git9.xz
>
> $ xzgrep -P '(?=.*^diff)(?=.*nouveau)' kernel-3.16.0-0.rc0.git9.1.fc21.src/patch-3.15-git9.xz
> diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
>
> $ grep nouveau kernel-3.16.0-0.rc0.git9.1.fc21.src/*.patch
> kernel-3.16.0-0.rc0.git9.1.fc21.src/acpi-video-Add-use-native-backlight-quirk-for-the-Th.patch:"nouveau: Don't check acpi_video_backlight_support() before registering backlight"
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> BROKEN VIDEO RESUME/THAW KERNEL:
>
> $ ls -1 kernel-3.16.0-0.rc0.git10.1.fc21.src/*.xz
> kernel-3.16.0-0.rc0.git10.1.fc21.src/linux-3.15.tar.xz
> kernel-3.16.0-0.rc0.git10.1.fc21.src/patch-3.15-git10.xz
>
> $ xzgrep -P '(?=.*^diff)(?=.*nouveau)' kernel-3.16.0-0.rc0.git10.1.fc21.src/patch-3.15-git10.xz
> diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
> diff --git a/drivers/gpu/drm/nouveau/core/core/event.c b/drivers/gpu/drm/nouveau/core/core/event.c
> diff --git a/drivers/gpu/drm/nouveau/core/core/object.c b/drivers/gpu/drm/nouveau/core/core/object.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/gm100.c b/drivers/gpu/drm/nouveau/core/engine/device/gm100.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv04.c b/drivers/gpu/drm/nouveau/core/engine/device/nv04.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv10.c b/drivers/gpu/drm/nouveau/core/engine/device/nv10.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv20.c b/drivers/gpu/drm/nouveau/core/engine/device/nv20.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv30.c b/drivers/gpu/drm/nouveau/core/engine/device/nv30.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv40.c b/drivers/gpu/drm/nouveau/core/engine/device/nv40.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv50.c b/drivers/gpu/drm/nouveau/core/engine/device/nv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/base.c b/drivers/gpu/drm/nouveau/core/engine/disp/base.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/conn.c b/drivers/gpu/drm/nouveau/core/engine/disp/conn.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/conn.h b/drivers/gpu/drm/nouveau/core/engine/disp/conn.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dport.c b/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dport.h b/drivers/gpu/drm/nouveau/core/engine/disp/dport.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/gm107.c b/drivers/gpu/drm/nouveau/core/engine/disp/gm107.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv04.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv04.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nva0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nva0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c b/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nve0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nve0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvf0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvf0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outp.c b/drivers/gpu/drm/nouveau/core/engine/disp/outp.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outp.h b/drivers/gpu/drm/nouveau/core/engine/disp/outp.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.c b/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.h b/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/piornv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/piornv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/priv.h b/drivers/gpu/drm/nouveau/core/engine/disp/priv.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornv94.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornv94.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c b/drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nv04.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nv04.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c b/drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c b/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c b/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/software/nv50.c b/drivers/gpu/drm/nouveau/core/engine/software/nv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/engine/software/nv50.h b/drivers/gpu/drm/nouveau/core/engine/software/nv50.h
> diff --git a/drivers/gpu/drm/nouveau/core/engine/software/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/software/nvc0.c
> diff --git a/drivers/gpu/drm/nouveau/core/include/core/class.h b/drivers/gpu/drm/nouveau/core/include/core/class.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/core/event.h b/drivers/gpu/drm/nouveau/core/include/core/event.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/engine/disp.h b/drivers/gpu/drm/nouveau/core/include/engine/disp.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/engine/fifo.h b/drivers/gpu/drm/nouveau/core/include/engine/fifo.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/engine/graph.h b/drivers/gpu/drm/nouveau/core/include/engine/graph.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/dp.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/dp.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h
> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h b/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/base.c b/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c b/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/dp.c b/drivers/gpu/drm/nouveau/core/subdev/bios/dp.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c b/drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h b/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv92.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv92.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h b/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/anx9805.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/anx9805.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv04.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv4e.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv4e.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.h
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv94.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv94.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nvd0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nve0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.h
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv04.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv04.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv94.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv94.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/port.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/port.h
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c b/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c
> diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nva3.c
> diff --git a/drivers/gpu/drm/nouveau/dispnv04/dac.c b/drivers/gpu/drm/nouveau/dispnv04/dac.c
> diff --git a/drivers/gpu/drm/nouveau/dispnv04/dfp.c b/drivers/gpu/drm/nouveau/dispnv04/dfp.c
> diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c b/drivers/gpu/drm/nouveau/dispnv04/disp.c
> diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c
> diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
> diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
> diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
> diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.h b/drivers/gpu/drm/nouveau/nouveau_connector.h
> diff --git a/drivers/gpu/drm/nouveau/nouveau_crtc.h b/drivers/gpu/drm/nouveau/nouveau_crtc.h
> diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
> diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c
> diff --git a/drivers/gpu/drm/nouveau/nouveau_encoder.h b/drivers/gpu/drm/nouveau/nouveau_encoder.h
> diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
> diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
> diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
> diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
>
> $ grep nouveau kernel-3.16.0-0.rc0.git10.1.fc21.src/*.patch
> kernel-3.16.0-0.rc0.git10.1.fc21.src/acpi-video-Add-use-native-backlight-quirk-for-the-Th.patch:"nouveau: Don't check acpi_video_backlight_support() before registering backlight"
This is precisely why the user is often asked to perform a git bisect. 
There's a mountain of files touched between the two Fedora kernels 
(xzgrep output), corresponding witk something like 20 patches. Any of 
those could be the offender. We don't know, and now the search space 
still is 20 patches. Git bisect is nothing more than taking a kernel, 
marking a good and a bad kernel in terms of patches in the git history 
(like you requested below), and compiling and testing a few. Git makes 
sure that every kernel you try roughly halves the search space, so 
you'll have the offender in 5 steps.
It's not that we hate you and want you to suffer on complex procedures 
preferably including kernel compiles, but this process just gives more 
precise information to the developers... and I bet it takes less time 
than trying random kernels from Koji to narrow down the search space.
Anyway, we're not forcing you to do a bisect. If you don't, that's fine, 
but it probably takes longer to find the specific bug. We'd be grateful 
if you do though, as it'll save a lot of time from the hard-working 
developers that rather want to focus their attention on problems like 
reclocking and getting the latest generations of cards to work.
> http://git.linuxtv.org/cgit.cgi/media_build.git
> Whether the nouveau project has something like this?
We do, it's right here: 
http://cgit.freedesktop.org/nouveau/linux-2.6/log/?h=linux-3.16 . 
Problem is that it's not aligned with distributions' kernels, so it 
doesn't tell you a lot.
To come back to putting all the burden on the user: bugs don't always 
trigger for everyone. I've never seen this bug before. Most often it's a 
software error that only hits on one or several video cards in very 
specific configurations (like dual monitor, specific output port, 
optimus, VRAM), and developers don't always have this configuration 
available for testing. If developers can't reproduce and they don't know 
where to look, they're not going to be able to fix a bug.

Roy
> poma
>

Re: [Nouveau] VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[poma]

On 14.09.2014 11:53, Roy Spliet wrote:
> Op 14-09-14 om 10:31 schreef poma:
>> On 13.09.2014 23:45, Roy Spliet wrote:
>>> Dear Poma,
>>>
>>> Don't get anyone wrong, your input is greatly valued. The reason why
>>> "we" (nouveau developers) generally ask for a git bisection is because
>>> we don't know or track specific distributions. Although your search has
>>> narrowed the problem down (thanks for that!), we don't know how big the
>>> difference is between kernel-3.16.0-0.rc0.git9.1.fc21 and
>>> kernel-3.16.0-0.rc0.git10.1.fc21. Is the difference literally just that
>>> one patch? Or were there more patches to nouveau or drm that might have
>>> been the culprit? So far I haven't succeeded in finding the exact
>>> differences between the two kernels. Git bisect on the upstream kernel
>>> on the other hand will always point at the precise patch that broke the
>>> kernel, narrowing down the search space of the bug for developers thus
>>> reducing the time it takes to fix your issue. Unless developers can
>>> reproduce your issue, Unfortunately the user is the person who has to do
>>> the bisecting.
>>> So in short: narrowing down the search space often saves a lot of time
>>> of the developer, reducing the time it takes to fix your issue!
>>> Thus, if you can find the time to perform a git bisect (with the right
>>> good/bad markers it really should not take that many kernels to build),
>>> or if you can validate that the patch you mention *really* is the only
>>> difference between the two kernels, it'd be greatly appreciated.
>>> Thanks! Yours,
>>>
>>> Roy
>>>
>> Are you saying Fedora kernels aren't valid for testing purposes!?
> No, that's not what I'm saying. You used a Fedora kernel which is fairly 
> recent and found a bug. However, they're less useful for pinpointing 
> your problem to  the offending bit of code, as you demonstrate below.
>> Madre mía!
> Salud...
>>
>> Moreover, this regression is not just for my device.
>> Apart from Ben, in "Red Fedora" there are several skilled kernel developers.
>> Why they do not help!?
>> Everything is on the user's back, really?
>>
>>
>> WORKING VIDEO RESUME/THAW KERNEL:
>>
>> $ ls -1 kernel-3.16.0-0.rc0.git9.1.fc21.src/*.xz
>> kernel-3.16.0-0.rc0.git9.1.fc21.src/linux-3.15.tar.xz
>> kernel-3.16.0-0.rc0.git9.1.fc21.src/patch-3.15-git9.xz
>>
>> $ xzgrep -P '(?=.*^diff)(?=.*nouveau)' kernel-3.16.0-0.rc0.git9.1.fc21.src/patch-3.15-git9.xz
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
>>
>> $ grep nouveau kernel-3.16.0-0.rc0.git9.1.fc21.src/*.patch
>> kernel-3.16.0-0.rc0.git9.1.fc21.src/acpi-video-Add-use-native-backlight-quirk-for-the-Th.patch:"nouveau: Don't check acpi_video_backlight_support() before registering backlight"
>>
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> BROKEN VIDEO RESUME/THAW KERNEL:
>>
>> $ ls -1 kernel-3.16.0-0.rc0.git10.1.fc21.src/*.xz
>> kernel-3.16.0-0.rc0.git10.1.fc21.src/linux-3.15.tar.xz
>> kernel-3.16.0-0.rc0.git10.1.fc21.src/patch-3.15-git10.xz
>>
>> $ xzgrep -P '(?=.*^diff)(?=.*nouveau)' kernel-3.16.0-0.rc0.git10.1.fc21.src/patch-3.15-git10.xz
>> diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
>> diff --git a/drivers/gpu/drm/nouveau/core/core/event.c b/drivers/gpu/drm/nouveau/core/core/event.c
>> diff --git a/drivers/gpu/drm/nouveau/core/core/object.c b/drivers/gpu/drm/nouveau/core/core/object.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/gm100.c b/drivers/gpu/drm/nouveau/core/engine/device/gm100.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv04.c b/drivers/gpu/drm/nouveau/core/engine/device/nv04.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv10.c b/drivers/gpu/drm/nouveau/core/engine/device/nv10.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv20.c b/drivers/gpu/drm/nouveau/core/engine/device/nv20.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv30.c b/drivers/gpu/drm/nouveau/core/engine/device/nv30.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv40.c b/drivers/gpu/drm/nouveau/core/engine/device/nv40.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv50.c b/drivers/gpu/drm/nouveau/core/engine/device/nv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/base.c b/drivers/gpu/drm/nouveau/core/engine/disp/base.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/conn.c b/drivers/gpu/drm/nouveau/core/engine/disp/conn.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/conn.h b/drivers/gpu/drm/nouveau/core/engine/disp/conn.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dport.c b/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dport.h b/drivers/gpu/drm/nouveau/core/engine/disp/dport.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/gm107.c b/drivers/gpu/drm/nouveau/core/engine/disp/gm107.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv04.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv04.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nva0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nva0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c b/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nve0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nve0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvf0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvf0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outp.c b/drivers/gpu/drm/nouveau/core/engine/disp/outp.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outp.h b/drivers/gpu/drm/nouveau/core/engine/disp/outp.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.c b/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.h b/drivers/gpu/drm/nouveau/core/engine/disp/outpdp.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/piornv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/piornv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/priv.h b/drivers/gpu/drm/nouveau/core/engine/disp/priv.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornv94.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornv94.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornvd0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c b/drivers/gpu/drm/nouveau/core/engine/fifo/gk20a.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nv04.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nv04.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c b/drivers/gpu/drm/nouveau/core/engine/graph/gk20a.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c b/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c b/drivers/gpu/drm/nouveau/core/engine/graph/nve4.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/software/nv50.c b/drivers/gpu/drm/nouveau/core/engine/software/nv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/software/nv50.h b/drivers/gpu/drm/nouveau/core/engine/software/nv50.h
>> diff --git a/drivers/gpu/drm/nouveau/core/engine/software/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/software/nvc0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/include/core/class.h b/drivers/gpu/drm/nouveau/core/include/core/class.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/core/event.h b/drivers/gpu/drm/nouveau/core/include/core/event.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/engine/disp.h b/drivers/gpu/drm/nouveau/core/include/engine/disp.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/engine/fifo.h b/drivers/gpu/drm/nouveau/core/include/engine/fifo.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/engine/graph.h b/drivers/gpu/drm/nouveau/core/include/engine/graph.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/dp.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/dp.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/clock.h b/drivers/gpu/drm/nouveau/core/include/subdev/clock.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h b/drivers/gpu/drm/nouveau/core/include/subdev/i2c.h
>> diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h b/drivers/gpu/drm/nouveau/core/include/subdev/ibus.h
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/base.c b/drivers/gpu/drm/nouveau/core/subdev/bar/base.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/bar/nvc0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c b/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/dp.c b/drivers/gpu/drm/nouveau/core/subdev/bios/dp.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv04.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv40.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nva3.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nve0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c b/drivers/gpu/drm/nouveau/core/subdev/fb/gk20a.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h b/drivers/gpu/drm/nouveau/core/subdev/fb/priv.h
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv92.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv92.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h b/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/anx9805.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/anx9805.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv04.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv4e.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv4e.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv50.h
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nv94.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nv94.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nvd0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/nve0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/pad.h
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv04.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv04.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv94.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/padnv94.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/port.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/port.h
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c b/drivers/gpu/drm/nouveau/core/subdev/ibus/gk20a.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c
>> diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nva3.c
>> diff --git a/drivers/gpu/drm/nouveau/dispnv04/dac.c b/drivers/gpu/drm/nouveau/dispnv04/dac.c
>> diff --git a/drivers/gpu/drm/nouveau/dispnv04/dfp.c b/drivers/gpu/drm/nouveau/dispnv04/dfp.c
>> diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c b/drivers/gpu/drm/nouveau/dispnv04/disp.c
>> diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv04.c
>> diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.h b/drivers/gpu/drm/nouveau/nouveau_connector.h
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_crtc.h b/drivers/gpu/drm/nouveau/nouveau_crtc.h
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_encoder.h b/drivers/gpu/drm/nouveau/nouveau_encoder.h
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
>> diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
>>
>> $ grep nouveau kernel-3.16.0-0.rc0.git10.1.fc21.src/*.patch
>> kernel-3.16.0-0.rc0.git10.1.fc21.src/acpi-video-Add-use-native-backlight-quirk-for-the-Th.patch:"nouveau: Don't check acpi_video_backlight_support() before registering backlight"
> This is precisely why the user is often asked to perform a git bisect. 
> There's a mountain of files touched between the two Fedora kernels 
> (xzgrep output), corresponding witk something like 20 patches. Any of 
> those could be the offender. We don't know, and now the search space 
> still is 20 patches. Git bisect is nothing more than taking a kernel, 
> marking a good and a bad kernel in terms of patches in the git history 
> (like you requested below), and compiling and testing a few. Git makes 
> sure that every kernel you try roughly halves the search space, so 
> you'll have the offender in 5 steps.
> It's not that we hate you and want you to suffer on complex procedures 
> preferably including kernel compiles, but this process just gives more 
> precise information to the developers... and I bet it takes less time 
> than trying random kernels from Koji to narrow down the search space.
> Anyway, we're not forcing you to do a bisect. If you don't, that's fine, 
> but it probably takes longer to find the specific bug. We'd be grateful 
> if you do though, as it'll save a lot of time from the hard-working 
> developers that rather want to focus their attention on problems like 
> reclocking and getting the latest generations of cards to work.
>> http://git.linuxtv.org/cgit.cgi/media_build.git
>> Whether the nouveau project has something like this?
> We do, it's right here: 
> http://cgit.freedesktop.org/nouveau/linux-2.6/log/?h=linux-3.16 . 
> Problem is that it's not aligned with distributions' kernels, so it 
> doesn't tell you a lot.
> To come back to putting all the burden on the user: bugs don't always 
> trigger for everyone. I've never seen this bug before. Most often it's a 
> software error that only hits on one or several video cards in very 
> specific configurations (like dual monitor, specific output port, 
> optimus, VRAM), and developers don't always have this configuration 
> available for testing. If developers can't reproduce and they don't know 
> where to look, they're not going to be able to fix a bug.
> 
> Roy


You guys were in at least right in one, in this particular case Fedora kernel is unusable.
.
..
...
Tested with vanilla...


Chipset: G98 (NV98)
Family : NV50


WORKING VIDEO RESUME(S3)

3.15.0-rc8.1.git.7a014a8
3.15.0-rc8.2.git.456b057
3.15.0-rc8.3.git.b8407c9
3.15.0-rc8.4.git.bb7ef1e

========================

BROKEN VIDEO RESUME(S3)

STARTING WITH:
3.15.0-rc8.5.git.415f12e

commit 415f12efc1b2308411b2cbc3e82666b3db8a7758
Author: Ben Skeggs <bskeggs@redhat.com>
Date:   Wed May 21 11:24:43 2014 +1000

    drm/nv50/disp: start removing direct vbios parsing from supervisor
    
    Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e

...
CONTINUED VIDEO RESUME(S3) BROKENNESS WITH:

3.15.0-rc8.7.git.3b52a1f
3.15.0-rc8.9.git.1ecee1c
3.15.0-rc8.13.git.8894f49
3.15.0-rc8.22.git.1ae5a62
3.15.0-rc8.100.git.fcc8fd7

==========================


PROCEDURE (especially for fellow tester adamwill)

$ mkdir RESUMEVIDEOTEST
$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
$ cd linux-next/
$ git log /* search for offended commit & copy git_sha_short */
$ git archive --format=tar.gz -o ../RESUMEVIDEOTEST/3.15.0-rc8.5.git.<git_sha_short>.tar.gz <git_sha_short>
$ cd ../RESUMEVIDEOTEST/
$ ls
3.15.0-rc8.5.git.415f12e.tar.gz
$ tar xf 3.15.0-rc8.5.git.415f12e.tar.gz
$ cp ../config-mini-3.17.0-0.rc4.git4.1 .config /* mostly removed unnecessary modules via "make menuconfig" */
$ time make -j3 bzImage && time make -j3 modules /* 5m51.210s & 8m24.461s */
$ su
# make -j3 install && make -j3 modules_install
# dracut --kver 3.15.0-rc8.5.git.415f12e -vf
# systemctl reboot
...
$ uname -r
3.15.0-rc8.5.git.415f12e
$ systemctl suspend
...
RESUME(S3)

finito


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Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[Ilia Mirkin]

On Mon, Sep 15, 2014 at 4:23 AM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Chipset: G98 (NV98)
> Family : NV50
>
>
> WORKING VIDEO RESUME(S3)
>
> 3.15.0-rc8.1.git.7a014a8
> 3.15.0-rc8.2.git.456b057
> 3.15.0-rc8.3.git.b8407c9
> 3.15.0-rc8.4.git.bb7ef1e
>
> ========================
>
> BROKEN VIDEO RESUME(S3)
>
> STARTING WITH:
> 3.15.0-rc8.5.git.415f12e
>
> commit 415f12efc1b2308411b2cbc3e82666b3db8a7758
> Author: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Date:   Wed May 21 11:24:43 2014 +1000
>
>     drm/nv50/disp: start removing direct vbios parsing from supervisor
>
>     Signed-off-by: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e

Looks like the same issue as reported in

https://bugs.freedesktop.org/show_bug.cgi?id=83550

Ben, any ideas? Poma, can you attach your vbios to the bug above?

  -ilia

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[poma]

On 15.09.2014 15:36, Ilia Mirkin wrote:
> On Mon, Sep 15, 2014 at 4:23 AM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> Chipset: G98 (NV98)
>> Family : NV50
>>
>>
>> WORKING VIDEO RESUME(S3)
>>
>> 3.15.0-rc8.1.git.7a014a8
>> 3.15.0-rc8.2.git.456b057
>> 3.15.0-rc8.3.git.b8407c9
>> 3.15.0-rc8.4.git.bb7ef1e
>>
>> ========================
>>
>> BROKEN VIDEO RESUME(S3)
>>
>> STARTING WITH:
>> 3.15.0-rc8.5.git.415f12e
>>
>> commit 415f12efc1b2308411b2cbc3e82666b3db8a7758
>> Author: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>> Date:   Wed May 21 11:24:43 2014 +1000
>>
>>     drm/nv50/disp: start removing direct vbios parsing from supervisor
>>
>>     Signed-off-by: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>>
>> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e
> 
> Looks like the same issue as reported in
> 
> https://bugs.freedesktop.org/show_bug.cgi?id=83550
> 
> Ben, any ideas? Poma, can you attach your vbios to the bug above?
> 
>   -ilia
> 

A Video BIOS dumped.


poma

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[Ilia Mirkin]

On Mon, Sep 15, 2014 at 1:28 PM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On 15.09.2014 15:36, Ilia Mirkin wrote:
>> On Mon, Sep 15, 2014 at 4:23 AM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>> Chipset: G98 (NV98)
>>> Family : NV50
>>>
>>>
>>> WORKING VIDEO RESUME(S3)
>>>
>>> 3.15.0-rc8.1.git.7a014a8
>>> 3.15.0-rc8.2.git.456b057
>>> 3.15.0-rc8.3.git.b8407c9
>>> 3.15.0-rc8.4.git.bb7ef1e
>>>
>>> ========================
>>>
>>> BROKEN VIDEO RESUME(S3)
>>>
>>> STARTING WITH:
>>> 3.15.0-rc8.5.git.415f12e
>>>
>>> commit 415f12efc1b2308411b2cbc3e82666b3db8a7758
>>> Author: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>>> Date:   Wed May 21 11:24:43 2014 +1000
>>>
>>>     drm/nv50/disp: start removing direct vbios parsing from supervisor
>>>
>>>     Signed-off-by: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>>>
>>> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e
>>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e
>>
>> Looks like the same issue as reported in
>>
>> https://bugs.freedesktop.org/show_bug.cgi?id=83550
>>
>> Ben, any ideas? Poma, can you attach your vbios to the bug above?
>>
>>   -ilia
>>
>
> A Video BIOS dumped.

Thanks! If possible, please provide kernel logs (which include the
initial boot and the resume) for both 415f12efc1 and 415f12efc1^ (i.e.
parent commit). Please boot those kernels with
'nouveau.debug=trace,PDISP=spam' so that we get the maximal debug
info. In order for that to work, you'll need to change
CONFIG_NOUVEAU_DEBUG to 7 (spam). [Don't use such kernels for anything
other than debugging, setting the debug level so high adds a ton of
code and will slow things down significantly.]

  -ilia

Re: VGA resume & thaw (wake up from S3 & S4) broken - kernel(nouveau) exclusively

[poma]

On 16.09.2014 01:21, Ilia Mirkin wrote:
> On Mon, Sep 15, 2014 at 1:28 PM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> On 15.09.2014 15:36, Ilia Mirkin wrote:
>>> On Mon, Sep 15, 2014 at 4:23 AM, poma <pomidorabelisima-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>>> Chipset: G98 (NV98)
>>>> Family : NV50
>>>>
>>>>
>>>> WORKING VIDEO RESUME(S3)
>>>>
>>>> 3.15.0-rc8.1.git.7a014a8
>>>> 3.15.0-rc8.2.git.456b057
>>>> 3.15.0-rc8.3.git.b8407c9
>>>> 3.15.0-rc8.4.git.bb7ef1e
>>>>
>>>> ========================
>>>>
>>>> BROKEN VIDEO RESUME(S3)
>>>>
>>>> STARTING WITH:
>>>> 3.15.0-rc8.5.git.415f12e
>>>>
>>>> commit 415f12efc1b2308411b2cbc3e82666b3db8a7758
>>>> Author: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>>>> Date:   Wed May 21 11:24:43 2014 +1000
>>>>
>>>>     drm/nv50/disp: start removing direct vbios parsing from supervisor
>>>>
>>>>     Signed-off-by: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>>>>
>>>> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e
>>>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c?id=415f12e
>>>
>>> Looks like the same issue as reported in
>>>
>>> https://bugs.freedesktop.org/show_bug.cgi?id=83550
>>>
>>> Ben, any ideas? Poma, can you attach your vbios to the bug above?
>>>
>>>   -ilia
>>>
>>
>> A Video BIOS dumped.
> 
> Thanks! If possible, please provide kernel logs (which include the
> initial boot and the resume) for both 415f12efc1 and 415f12efc1^ (i.e.
> parent commit). Please boot those kernels with
> 'nouveau.debug=trace,PDISP=spam' so that we get the maximal debug
> info. In order for that to work, you'll need to change
> CONFIG_NOUVEAU_DEBUG to 7 (spam). [Don't use such kernels for anything
> other than debugging, setting the debug level so high adds a ton of
> code and will slow things down significantly.]
> 
>   -ilia
> 

In 415f12e proximity no kernel is useful, resumed machine is stuck.
"The display remains OFF" meaning everything else works(likely to Daredevil), only applies to recent kernels.


poma

Re: VGA resume & thaw (wake up from S3 & S4) - resolved

[poma]

3.17.0-0.rc7.git0.2.fc21.x86_64  PASSED
  i.e.
3.17.0-0.rc7.git0.1.fc22.x86_64
  patched with 
  "disp/nv50: fix dpms regression on certain boards"
  http://cgit.freedesktop.org/~darktama/nouveau/commit/?id=a68e953


poma