[Bug 73291] New: Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

[Bug 73291] New: Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=73291

            Bug ID: 73291
           Summary: Kernel 3.13.7 boots with hybrid Intel/ATI but to blank
                    graphical screen
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.13.7
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: mike.cloaked@gmail.com
        Regression: No

Created attachment 131071
  --> https://bugzilla.kernel.org/attachment.cgi?id=131071&action=edit
systemd journal for current boot with kernel 3.13.6

Running arch linux stock kernel. Previous Kernel 3.13.6 boots to graphical
screen giving a usable laptop but problems with radeon apparent from systemd
journal log. Updating the kernel to 3.13.7 boots the laptop, but the graphical
screen is blank apart from static cursor at top left of the screen. The kernel
is still running and able to ssh in to get at the log files (attached). No
graphics is usable.

Hybrid graphics in this Lenovo Thinkpad S540 is:

$ lspci | egrep '(Graphics|Display)'
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated
Graphics Controller (rev 09)
06:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT
[Radeon HD 8670A]

i915 and radeon modules are built into the initial ramdisk.

xrandr only sees one provider:

$ xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x48 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs:
4 outputs: 5 associated providers: 0 name:Intel

I have tried adding intel.modeset=0, and separately  radeon.runpm=0 to the
kernel line but this does not remedy the situation.

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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https://bugzilla.kernel.org/show_bug.cgi?id=73291

--- Comment #1 from Mike Cloaked <mike.cloaked@gmail.com> ---
Created attachment 131081
  --> https://bugzilla.kernel.org/attachment.cgi?id=131081&action=edit
xorg log for kernel 3.13.6

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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https://bugzilla.kernel.org/show_bug.cgi?id=73291

--- Comment #2 from Mike Cloaked <mike.cloaked@gmail.com> ---
Created attachment 131091
  --> https://bugzilla.kernel.org/attachment.cgi?id=131091&action=edit
systemd journal for current boot with kernel 3.13.7

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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https://bugzilla.kernel.org/show_bug.cgi?id=73291

--- Comment #3 from Mike Cloaked <mike.cloaked@gmail.com> ---
Created attachment 131101
  --> https://bugzilla.kernel.org/attachment.cgi?id=131101&action=edit
xorg log for kernel 3.13.7

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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--- Comment #4 from Mike Cloaked <mike.cloaked@gmail.com> ---
The system is dual boot arch linux and Windows 8.1, boot is UEFI using the
rEFInd boot manager, but that should not be relevant to the fail mode reported
in this bugzilla.

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=73291

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #5 from Alex Deucher <alexdeucher@gmail.com> ---
The radeon driver appears to be loading fine.  Additionally, there are no
displays connected to the radeon so it will only be used when you set it up as
an offload sink.  The warning in your kernel logs appear to be from the intel
driver:

Mar 31 15:01:10 lenovo1 kernel: ------------[ cut here ]------------
Mar 31 15:01:10 lenovo1 kernel: WARNING: CPU: 1 PID: 57 at
drivers/gpu/drm/i915/intel_opregion.c:266 swsci+0x2ec/0x300 [i915]()
Mar 31 15:01:10 lenovo1 kernel: excessive driver sleep timeout (DSPL) 1280
Mar 31 15:01:10 lenovo1 kernel: Modules linked in: i915(+) video button
intel_agp intel_gtt radeon i2c_algo_bit drm_kms_helper ttm drm i2c_core
Mar 31 15:01:10 lenovo1 kernel: CPU: 1 PID: 57 Comm: modprobe Not tainted
3.13.6-1-ARCH #1
Mar 31 15:01:10 lenovo1 kernel: Hardware name: LENOVO 20B3CTO1WW/20B3CTO1WW,
BIOS GPET54WW (1.54 ) 02/19/2014
Mar 31 15:01:10 lenovo1 kernel:  0000000000000009 ffff880221de7810
ffffffff81513274 ffff880221de7858
Mar 31 15:01:10 lenovo1 kernel:  ffff880221de7848 ffffffff81061a3d
ffffc90000c68218 ffff880221d60000
Mar 31 15:01:10 lenovo1 kernel:  00000000000001f4 0000000000000008
ffff880221de7920 ffff880221de78a8

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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https://bugzilla.kernel.org/show_bug.cgi?id=73291

--- Comment #6 from Mike Cloaked <mike.cloaked@gmail.com> ---
Perhaps this warning will not occur when kernel 3.14.x is used when it is
released to arch in the near future. I presume that new patches in kernel
3.13.7 makes the difference between a successful boot to graphical screen in
3.13.6 and fail in 3.13.7 but it would be nice to know if there is a workaround
until this is resolved in kernel > 3.13.7?

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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https://bugzilla.kernel.org/show_bug.cgi?id=73291

--- Comment #7 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Mike Cloaked from comment #6)
> Perhaps this warning will not occur when kernel 3.14.x is used when it is
> released to arch in the near future. I presume that new patches in kernel
> 3.13.7 makes the difference between a successful boot to graphical screen in
> 3.13.6 and fail in 3.13.7 but it would be nice to know if there is a
> workaround until this is resolved in kernel > 3.13.7?

Can you bisect?  If the warning is related to the problem, it's an intel driver
issue rather than a radeon driver issue.  Does the system work ok if you
blacklist the radeon driver?  E.g., add modprobe.blacklist=radeon to the kernel
command line in grub.

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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https://bugzilla.kernel.org/show_bug.cgi?id=73291

--- Comment #8 from Mike Cloaked <mike.cloaked@gmail.com> ---
What I am seeing seems to be the same as in the Fedora bug at:

https://bugzilla.redhat.com/show_bug.cgi?id=1070219

I don't have the system set up for bisecting. However I will boot with the
radeon driver blacklisted and report back.

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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--- Comment #9 from Mike Cloaked <mike.cloaked@gmail.com> ---
Booting with modprobe.blacklist=radeon added to the kernel line in the rEFInd
boot manager gives a successful boot to a graphical screen.  So thank you, this
is a workaround for the present.

I can upload the systemd journal for this boot if it is useful?

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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https://bugzilla.kernel.org/show_bug.cgi?id=73291

--- Comment #10 from Mike Cloaked <mike.cloaked@gmail.com> ---
Created attachment 131111
  --> https://bugzilla.kernel.org/attachment.cgi?id=131111&action=edit
systemd journal with 3.13.7 booted with radeon module blacklisted

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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https://bugzilla.kernel.org/show_bug.cgi?id=73291

--- Comment #11 from Mike Cloaked <mike.cloaked@gmail.com> ---
For completeness I removed the radeon module from the initial ramdisk, and
added:

install radeon /bin/false 

to the file /etc/modprobe.d/blacklist.conf

Now the system boots to a working graphical screen for kernel 3.13.7 with only
the Intel i915 running.

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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Mike Cloaked <mike.cloaked@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Regression|No                          |Yes

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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--- Comment #12 from Mike Cloaked <mike.cloaked@gmail.com> ---
Is this bug related to https://bugzilla.kernel.org/show_bug.cgi?id=65761

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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--- Comment #13 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Mike Cloaked from comment #12)
> Is this bug related to https://bugzilla.kernel.org/show_bug.cgi?id=65761

I don't think so.  In your case you seem to lose the display before the radeon
card is even used.  Are you sure radeon.runpm=0 doesn't help?

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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--- Comment #14 from Mike Cloaked <mike.cloaked@gmail.com> ---
Yes prior to blacklisting the radeon module I tried booting with radeon.runpm=0
and I still got the blank screen for graphical boot.

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[Bug 73291] Kernel 3.13.7 boots with hybrid Intel/ATI but to blank graphical screen

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EmanueL Czirai <emanueLczirai@cryptoLab.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |emanueLczirai@cryptoLab.net

--- Comment #15 from EmanueL Czirai <emanueLczirai@cryptoLab.net> ---
Mar 31 15:01:10 lenovo1 kernel: x86 PAT enabled: cpu 0, old 0x7040600070406,
new 0x7010600070106

It might be a long shot but, maybe try with PAT disabled ? and if you do, you
might get this warning:
[    0.868163] [drm] Please enable CONFIG_MTRR and CONFIG_X86_PAT for better
per
formance thanks to write-combining                                              

I wrote this to another user:
"
 You could try with kernel option CONFIG_X86_PAT turned off. (I'm assuming
here, that you had it turned on; it's a child option to MTRR which is in
'Processor features' main menu in eg. 'make nconfig')
 I get random black screens right when luks password is about to be entered(and
system seems locked up) because that's when radeon switches from text mode into
frame buffer(graphics) mode, and that's when it happens(for me anyway). But
sometimes I just keep getting this black screen on startup, in which case, I
just pass radeon.modeset=0 to kernel cmdline(through grub) and this way I get
past it(because it doesn't change into graphics mode) so that I can recompile
kernel with that PAT option off; during this time you don't have KMS so X (eg.
startx) won't work.

Cheers,
EmanueL
"

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