* [Bug 71035] New: EVO engine failure, probably (not?) related to EDID corruption
@ 2013-10-30 8:01 bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-71035-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
0 siblings, 1 reply; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2013-10-30 8:01 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
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https://bugs.freedesktop.org/show_bug.cgi?id=71035
Priority: medium
Bug ID: 71035
Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Summary: EVO engine failure, probably (not?) related to EDID
corruption
QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: nik-c8FWWMckPjiPRyzcNaLxHw@public.gmane.org
Hardware: x86-64 (AMD64)
Status: NEW
Version: unspecified
Component: Driver/nouveau
Product: xorg
Created attachment 88342
--> https://bugs.freedesktop.org/attachment.cgi?id=88342&action=edit
dmesg output
** Slightly modified version from Debian Bug #728278 **
The nouveau driver fails on this hardware. A talk in #nouveau on
Freenode turned up that the failure is related to the EVO engine
responsible for modesetting. Here are the relevant parts of that chat,
more explanations follow below:
08:02 < imirkin> nouveau E[ PDISP][0000:01:00.0] chid 0 mthd 0x0080 data
0x00000000 0x000d5080
08:02 < Natureshadow> that means?
08:02 < imirkin> that's a bit unfortunate
08:02 < imirkin> dunno, gimme a min
08:02 < Natureshadow> sorry, I am not a kernel hacker ;) ...
08:03 < imirkin> oh, that's the EVO flush
08:03 < imirkin> and the d5080 is probably the fifo position or something
08:03 < imirkin> uhm, silly question... do you have any indication that this
hardware actually works?
08:05 < imirkin> (e.g. on windows, or using the nvidia blob or using the nv
driver)
08:08 < Natureshadow> imirkin: it works with the nvidia driver
08:08 < imirkin> hm, ok
08:09 < Natureshadow> And GRUB can set the 1440x900 mode
08:09 < Natureshadow> So I assume VESA works as well
08:09 < imirkin> right, but that's a different mechanism
08:09 < Natureshadow> ok
08:09 < imirkin> what makes you say that edid is broken? is it broken with
nvidia driver as well?
08:09 < Natureshadow> In any case, installing the nvidia-glx driver and loading
the EDID file with X.org rather than at boot (nvidia does
not support modesetting) works
08:10 < Natureshadow> imirkin: Yes, it is.
08:10 < imirkin> k
08:10 < Natureshadow> The display EDID is corrupted, I have been loading that
EDID file forever with the nvidia driver
08:10 < Natureshadow> But as nouveau works great on all other hardware I have,
I wanted to get rid of that unnecessary binary blob ;)
08:11 < imirkin> yeah, for some reason the EVO commands just aren't working
08:11 < Natureshadow> Is that something I can fix ;)?
08:11 < imirkin> (these are commands used to control the display engine, which
controls the mode/etc)
08:11 < imirkin> well, if the nvidia driver works, it must be fixable
08:11 < Natureshadow> ok :D
08:11 < imirkin> the question is... how
08:12 < Natureshadow> I'm sure that question is a lot easier for you than for
me ;)
08:12 < Natureshadow> I'm ready for any debugging, may it be as crazy as you
like .)
08:14 < imirkin> well, the command likely comes from evo_sync() in
nv50_display.c
08:14 < imirkin> or perhaps nv50_display_flip_stop
08:15 < imirkin> but why does it error out? who knows. i don't know much about
the evo bits.
08:16 < Natureshadow> imirkin: hmm. so, seeing that the nvidia driver works, is
this a bug in nouveau I should report, or is it due to my
broken hardware?
08:16 < imirkin> given that the nvidia driver can work, it seems likely that
it's a bug in nouveau
[...]
08:33 < imirkin> it kinda feels like the evo engine isn't being turned on at
all
08:34 < imirkin> probably some missed register write somewhere
08:34 < imirkin> (whereby it normally starts out as 'on' for everone except
you)
I must add two things:
1. The display EDID of this device is corrupted, but I have worked
around that by ...
2. ... loading a corrected version of the EDID binary from a file. That worked
(see dmesg), so I think it is irrelevant for the bug.
The effect of this issue is that when modesetting, some garbage is
written to the screen, the scrollback buffer is scrolled up a bit, but
modesetting never really happens.
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_______________________________________________
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http://lists.freedesktop.org/mailman/listinfo/nouveau
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 71035] EVO engine failure, probably (not?) related to EDID corruption
[not found] ` <bug-71035-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
@ 2013-10-30 8:01 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2013-10-30 8:02 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2013-10-30 8:01 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 553 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=71035
Dominik George <nik-c8FWWMckPjiPRyzcNaLxHw@public.gmane.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nik-c8FWWMckPjiPRyzcNaLxHw@public.gmane.org
See Also| |http://bugs.debian.org/7282
| |78
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 71035] EVO engine failure, probably (not?) related to EDID corruption
[not found] ` <bug-71035-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2013-10-30 8:01 ` [Bug 71035] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
@ 2013-10-30 8:02 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2013-10-30 17:33 ` [Bug 71035] [NV86] PDISP evo flush (?) errors, broken modesetting bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2019-12-04 8:39 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2013-10-30 8:02 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 334 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=71035
--- Comment #1 from Dominik George <nik-c8FWWMckPjiPRyzcNaLxHw@public.gmane.org> ---
Created attachment 88343
--> https://bugs.freedesktop.org/attachment.cgi?id=88343&action=edit
VBIOS from graphics card
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http://lists.freedesktop.org/mailman/listinfo/nouveau
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 71035] [NV86] PDISP evo flush (?) errors, broken modesetting
[not found] ` <bug-71035-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2013-10-30 8:01 ` [Bug 71035] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2013-10-30 8:02 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
@ 2013-10-30 17:33 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2019-12-04 8:39 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2013-10-30 17:33 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 534 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=71035
Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|EVO engine failure, |[NV86] PDISP evo flush (?)
|probably (not?) related to |errors, broken modesetting
|EDID corruption |
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http://lists.freedesktop.org/mailman/listinfo/nouveau
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 71035] [NV86] PDISP evo flush (?) errors, broken modesetting
[not found] ` <bug-71035-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
` (2 preceding siblings ...)
2013-10-30 17:33 ` [Bug 71035] [NV86] PDISP evo flush (?) errors, broken modesetting bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
@ 2019-12-04 8:39 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2019-12-04 8:39 UTC (permalink / raw)
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 869 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=71035
Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |MOVED
Status|NEW |RESOLVED
--- Comment #2 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been
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You can subscribe and participate further through the new bug through this link
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https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/69.
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end of thread, other threads:[~2019-12-04 8:39 UTC | newest]
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2013-10-30 8:01 [Bug 71035] New: EVO engine failure, probably (not?) related to EDID corruption bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
[not found] ` <bug-71035-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
2013-10-30 8:01 ` [Bug 71035] " bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2013-10-30 8:02 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2013-10-30 17:33 ` [Bug 71035] [NV86] PDISP evo flush (?) errors, broken modesetting bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
2019-12-04 8:39 ` bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
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