Nouveau - Mar 2013 - [Bug 62835] New: Screen freezes after resume from s2ram

https://bugs.freedesktop.org/show_bug.cgi?id=62835

          Priority: medium
            Bug ID: 62835
          Assignee: nouveau at lists.freedesktop.org
           Summary: Screen freezes after resume from s2ram
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: pontus.fuchs at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Driver/nouveau
           Product: xorg

Created attachment 77123
  --> https://bugs.freedesktop.org/attachment.cgi?id=77123&action=edit
Kernel logs with drm.debug=2 nouveau.debug=trace

With 3.9-rc kernels X freezes after resume from s2ram. After ~10 seconds X is
restarted.

When this happens the following is printed in the kernel logs:

nouveau E[Xorg[1218]] failed to idle channel 0xcccc0000 [Xorg[1218]]
nouveau E[     PFB][0000:01:00.0] trapped read at 0x002001e020 on channel
0x00007b23 [unknown] SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT
nouveau E[   PFIFO][0000:01:00.0] CACHE_ERROR - ch 2 [Xorg[1218]] subc 7 mthd
0x1280 data 0x00000000
nouveau E[  PGRAPH][0000:01:00.0] TRAP_TPDMA - TP0: Unhandled ustatus
0x00000004
nouveau E[  PGRAPH][0000:01:00.0]  TRAP
nouveau E[  PGRAPH][0000:01:00.0] ch 2 [0x0007b23000 Xorg[1218]] subc 7 class
0x8297 mthd 0x15e0 data 0x00000000
nouveau E[  PGRAPH][0000:01:00.0] TRAP_TPDMA_2D - TP 0 - Unknown fault at
address 0020339000
nouveau E[  PGRAPH][0000:01:00.0] TRAP_TPDMA_2D - TP 0 - e0c: 00000000, e18:
00000000, e1c: 00000000, e20: 00000011, e24: 0c030000
...

Full log attached.

Hardware is GeForce 8400M GS (10de:0427).

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--- Comment #1 from Patrik Lundquist <patrik.lundquist at gmail.com> ---
I seem to have the same problem with a GeForce 8800 GT card. Let me know if I
can help.

See https://bugs.launchpad.net/bugs/1111884

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Emil Velikov <emil.l.velikov at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=59057

--- Comment #2 from Emil Velikov <emil.l.velikov at gmail.com> ---
Pontus

You've mentioned in bug 59057
> Pontus Fuchs 2013-03-11 19:57:13 UTC
> Suspend / Resume working again with Linus' master git.
Assuming that this is the same system, has the issue regressed again ?

I'm assuming that the issue may not have been fixed and was worked around by
disabling "desktop effects".

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--- Comment #3 from Pontus Fuchs <pontus.fuchs at gmail.com> ---
(In reply to comment #2)
> Pontus
> 
> You've mentioned in bug 59057
> 
> > Pontus Fuchs 2013-03-11 19:57:13 UTC
> > Suspend / Resume working again with Linus' master git.
> 
> Assuming that this is the same system, has the issue regressed again ?
> 
> I'm assuming that the issue may not have been fixed and was worked
around by
> disabling "desktop effects".
The symptoms are similar to bug 59057 but not identical. In bug 59057 the
screen was completely blank after resume. 

In this bug the screen is first restored but everything is frozen except for
the mouse pointer.

Since the symptms where not identical I decided to file a new bug.

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--- Comment #4 from Emil Velikov <emil.l.velikov at gmail.com> ---
Can you isolate(bisect) the offending commit ?

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--- Comment #5 from Pontus Fuchs <pontus.fuchs at gmail.com> ---
(In reply to comment #4)
> Can you isolate(bisect) the offending commit ?
It's not really possible :( The complete story goes like this:

1. Back in 3.7 everything was working fine.
2. In 3.8-rc2 resume was not working with the black screen problem
3. After some time the black screen was fixed but I now had the problem
described in this bug.

If I bisect to a completely working system I'll end up before 3.8-rc2 as in
bug
59057.

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--- Comment #6 from chr[] <chris at rudorff.com> ---
Hi!

Regarding suspend/resume scrambling screen issues, try this patch:


[PATCH] drm/nouveau/fb: fix suspend/resume fbcon

http://lists.freedesktop.org/archives/nouveau/2013-October/014656.html

chr[]

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--- Comment #7 from Pontus Fuchs <pontus.fuchs at gmail.com> ---
(In reply to comment #6)
> 
> Regarding suspend/resume scrambling screen issues, try this patch:
> 
> 
> [PATCH] drm/nouveau/fb: fix suspend/resume fbcon
> 
> http://lists.freedesktop.org/archives/nouveau/2013-October/014656.html
> 
Hi,

I tried your patch but it does not solve my issue :(

//Pontus

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--- Comment #8 from Patrik Lundquist <patrik.lundquist at gmail.com> ---
The patch doesn't help me either. :-/

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--- Comment #9 from Pontus Fuchs <pontus.fuchs at gmail.com> ---
I finally managed to bisect this problem. This is the offending commit:

commit 4f6029da58ba9204c98e33f4f3737fe085c87a6f
Author: Ben Skeggs <bskeggs at redhat.com>
Date:   Fri Nov 16 11:54:31 2012 +1000

    drm/nv50-nvc0: switch to common disp impl, removing previous version

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Pontus Fuchs <pontus.fuchs at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=67878

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

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

--- Comment #10 from Martin Peres <martin.peres at free.fr> ---
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