Nouveau - Apr 2014 - [Bug 77574] New: Minor screen corruption on NVAF card

https://bugs.freedesktop.org/show_bug.cgi?id=77574

          Priority: medium
            Bug ID: 77574
          Assignee: nouveau at lists.freedesktop.org
           Summary: Minor screen corruption on NVAF card
        QA Contact: xorg-team at lists.x.org
          Severity: minor
    Classification: Unclassified
                OS: Linux (All)
          Reporter: adonai at xaker.ru
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 7.7 (2011)
         Component: Driver/nouveau
           Product: xorg

Created attachment 97517
  --> https://bugs.freedesktop.org/attachment.cgi?id=97517&action=edit
nouveau debug log with PDISP=debug,DEVINIT=debug

Good time of day.

I have MacBook with ArchLinux installed.
When resuming after suspend, there is minor screen corruption. It looks loke
small dashed line, approximately half of screen height, fading to transparent
at both sides. It is oriented vertically, moves from top of the screen to the
bottom, then appears again.

I'm attaching here Xorg log and nouveau.debug dmesg log with normal boot
->
suspend -> wake.

My versions of packages:
local/xorg-server 1.15.1-1 (xorg)
local/xf86-video-nouveau 1.0.10-2 (xorg-drivers xorg)
local/mesa 10.1.0-5
local/linux 3.14.1-1 (base)

I also can bring any information you need. Really want to help.

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--- Comment #1 from Chernovsky Oleg <adonai at xaker.ru> ---
Created attachment 97518
  --> https://bugs.freedesktop.org/attachment.cgi?id=97518&action=edit
Xorg log

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--- Comment #2 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Why do you disable PCE0 ? (You seem to have a nouveau.config=PCE0=0 somewhere.)
Are there other options set?

Is the resume issue a new one? (i.e. did it work OK with older kernels?)

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--- Comment #3 from Chernovsky Oleg <adonai at xaker.ru>
---
> You seem to have a nouveau.config=PCE0=0 somewhere.
I'll try to track it down. Could it be the issue?
> Are there other options set?
Where can I look at the list? /etc/modprobe.d/ is empty now
> Is the resume issue a new one? (i.e. did it work OK with older kernels?)
Earlier there was Debian. With kernel 3.10 it was worse - dashed line persisted
even on clean boot (without suspend -> wake).

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--- Comment #4 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to comment #3)
> > You seem to have a nouveau.config=PCE0=0 somewhere.
> 
> I'll try to track it down. Could it be the issue?
I checked the code... there's a

    bool enable = (nv_device(parent)->chipset != 0xaf);

So that's probably the reason why it's disabled. No idea why that's
the case on
NVAF, but I'm guessing that the person who put that in knew what they were
doing.

It also shouldn't cause problems for it to be disabled, I was just curious
why
it was.
> 
> > Are there other options set?
> 
> Where can I look at the list? /etc/modprobe.d/ is empty now
> 
> > Is the resume issue a new one? (i.e. did it work OK with older
kernels?)
> 
> Earlier there was Debian. With kernel 3.10 it was worse - dashed line
> persisted even on clean boot (without suspend -> wake).
Hm, OK. Sorry, no great advice from me :(

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Minor screen corruption on  |[NVAF] Minor screen
                   |NVAF card                   |corruption on NVAF card

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--- Comment #5 from Chernovsky Oleg <adonai at xaker.ru> ---
Don't worry about it. Just wanted to help you a little.

All the other video issues were fixed, so I finally can feel comfortable. I
really appreciate your work.

Thanks for answer!

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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #6 from Martin Peres <martin.peres at free.fr> ---
-- 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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