Nouveau - Feb 2015 - [Bug 88946] New: [NVC1] black screen after resuming from hibernate

https://bugs.freedesktop.org/show_bug.cgi?id=88946

            Bug ID: 88946
           Summary: [NVC1] black screen after resuming from hibernate
           Product: xorg
           Version: 7.7 (2012.06)
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: baumber at hotmail.com
        QA Contact: xorg-team at lists.x.org

Created attachment 113124
  --> https://bugs.freedesktop.org/attachment.cgi?id=113124&action=edit
syslog messages standy and resume - working

Hello,

I use Kubuntu 14.04.x together with a nvidia graphics card NVC1 (GF108) GT 430
passive and driver nouveau. 

Standby and resume works with the nouveau driver, but hibernate and resume
don't.

There is a black screen after resume, then the monitor goes off (no signal) and
no keyboard input is possible => Only a hard reset helps.

*** Package versions
Kubuntu 14.04.1 64bit
nouveau version 1.0.11-1-ubuntu2~trusty
Mesa 10.3.2, Xserver 1.16.0 (Utopic (14.10) Xstack)
kernel 3.16.x (also tested kernel 3.18.5 and 3.19rc7)

I have attached the following logs; with kernel parameter nouveau.debug=trace

--- syslog and xorg.log for the working standby 
syslog_standby_resume.txt    
standby_resume_Xorg.0.log.old_working.txt

--- syslog and xorg.log for the (hibernate) and resume problem 
syslog_hibernate_resume_NOT_working.txt
hibernate_resume_Xorg.0.log.old_NOT_working.txt

--- lspci.txt

There is a crash at the xserver;

[   101.332] nouveau_exa_upload_to_screen:380 - falling back to memcpy ignores
tiling
[   101.348] nouveau_exa_download_from_screen:295 - falling back to memcpy
ignores tiling
[   101.348] (EE) 
[   101.348] (EE) Backtrace:
[   101.348] (EE) 0: /usr/bin/X (xorg_backtrace+0x48) [0x7fbef984ae18]
[   101.349] (EE) 1: /usr/bin/X (0x7fbef96a6000+0x1a8e59) [0x7fbef984ee59]
[   101.349] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7fbef7826000+0x36d40)
[0x7fbef785cd40]
[   101.349] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (0x7fbef7826000+0x98d66)
[0x7fbef78bed66]
[   101.349] (EE) 4: /usr/lib/xorg/modules/libexa.so (0x7fbef334d000+0x5356)
[0x7fbef3352356]
[   101.349] (EE) 5: /usr/lib/xorg/modules/libexa.so (0x7fbef334d000+0x57fb)
[0x7fbef33527fb]
[   101.349] (EE) 6: /usr/lib/xorg/modules/libexa.so (0x7fbef334d000+0x7e22)
[0x7fbef3354e22]
[   101.349] (EE) 7: /usr/lib/xorg/modules/libexa.so (0x7fbef334d000+0x100c2)
[0x7fbef335d0c2]
[   101.349] (EE) 8: /usr/lib/xorg/modules/libexa.so (0x7fbef334d000+0x8499)
[0x7fbef3355499]
[   101.349] (EE) 9: /usr/bin/X (0x7fbef96a6000+0x131af9) [0x7fbef97d7af9]
[   101.349] (EE) 10: /usr/bin/X (0x7fbef96a6000+0x50281) [0x7fbef96f6281]
[   101.349] (EE) 11: /usr/bin/X (0x7fbef96a6000+0x5339e) [0x7fbef96f939e]
[   101.349] (EE) 12: /usr/bin/X (0x7fbef96a6000+0x571ea) [0x7fbef96fd1ea]
[   101.349] (EE) 13: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5)
[0x7fbef7847ec5]
[   101.349] (EE) 14: /usr/bin/X (0x7fbef96a6000+0x4276e) [0x7fbef96e876e]
[   101.349] (EE) 
[   101.349] (EE) Segmentation fault at address 0x0
[   101.349] (EE) 
Fatal server error:
[   101.349] (EE) Caught signal 11 (Segmentation fault). Server aborting

Thank you for your help!

Best regards, Bernhard

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--- Comment #1 from B. A. <baumber at hotmail.com> ---
Created attachment 113125
  --> https://bugs.freedesktop.org/attachment.cgi?id=113125&action=edit
Xorg log standy and resume - working

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--- Comment #2 from B. A. <baumber at hotmail.com> ---
Created attachment 113126
  --> https://bugs.freedesktop.org/attachment.cgi?id=113126&action=edit
syslog messages hibernate and resume - NOT working

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--- Comment #3 from B. A. <baumber at hotmail.com> ---
Created attachment 113127
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Xorg log hibernate and resume - NOT working

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--- Comment #4 from B. A. <baumber at hotmail.com> ---
Created attachment 113128
  --> https://bugs.freedesktop.org/attachment.cgi?id=113128&action=edit
lspci nvidia graphics card

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--- Comment #5 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Looks like on resume you're getting a ton of

[   75.967312] nouveau E[    PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT
at 0x610260 [ IBUS ]
[   75.967343] nouveau E[    PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT
at 0x610260 [ IBUS ]

followed by

[   75.967345] nouveau E[   PDISP][0000:01:00.0][0xc000857b][ffff8803f3954100]
timeout1: 0x00000000
[   75.967346] nouveau E[   PDISP][0000:01:00.0][0xc000857b][ffff8803f3954100]
init failed, -16

and some other init failures. When the card fails to come up, X isn't
particularly happy about that either, hence the black screen and general state
of sadness. So the question is why does the card not come up properly...

By the way, when you say "standby" I assume you mean "suspend to
ram", while
when you say "hibernate", I assume you mean "suspend to
disk" right?

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--- Comment #6 from B. A. <baumber at hotmail.com> ---
Yes, you are correct;

"standby" = "suspend to ram"
"hibernate" = "suspend to disk"

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--- Comment #7 from B. A. <baumber at hotmail.com> ---
Are there any new patches to test or any hints to solve this problem?

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--- Comment #8 from B. A. <baumber at hotmail.com> ---
In the final kernel 3.19 the problem persists. 

Shall I provide further debugging information?

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--- Comment #9 from B. A. <baumber at hotmail.com> ---
Same problem in 4.0rc2

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--- Comment #10 from B. A. <baumber at hotmail.com> ---
Is "suspend to disk"-support planned for driver nouveau?

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--- Comment #11 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to B. A. from comment #10)
> Is "suspend to disk"-support planned for driver nouveau?
It's not broken on purpose... I believe it *ought* to work. It'll just
require
someone to debug this to figure out what's going wrong.

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--- Comment #12 from B. A. <baumber at hotmail.com> ---
What can I do to help you to debug this problem? 

NVC3 also seems to have this problem:
=> see bug
https://bugs.freedesktop.org/show_bug.cgi?id=67255

Is the NVC0 family (Fermi) in general broken with hibernate and resume, or is
it dependent on the model of the graphics card?

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--- Comment #13 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to B. A. from comment #12)
> What can I do to help you to debug this problem? 
> 
> NVC3 also seems to have this problem:
> => see bug
> https://bugs.freedesktop.org/show_bug.cgi?id=67255
> 
> Is the NVC0 family (Fermi) in general broken with hibernate and resume, or
> is it dependent on the model of the graphics card?
No clue. It could also be a new issue introduced with a recent kernel change
(like all the fencing changes that have gone in). Or it could be an issue as
old as time itself :)

If this were easy to figure out, someone would have already done it. I
haven't
a clue how to debug this... resume issues are notoriously difficult to
investigate.

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--- Comment #14 from B. A. <baumber at hotmail.com> ---
Thank you for the answer!

I test this issue since kernel 3.2 and with other kernel versions (LTS kernel
version from Ubuntu LTS point releases), but it never had worked.

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Christopher M. Penalver <christopher.m.penalver at gmail.com> changed:

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

--- Comment #15 from Christopher M. Penalver <christopher.m.penalver at
gmail.com> ---
B. A., given you are using a downstream version of nouveau, it will help
immensely if you filed a new report with Ubuntu by ensuring you have the
package xdiagnose installed, and that you click the Yes button for attaching
additional debugging information running the following from a terminal:
ubuntu-bug xorg

Also, please feel free to subscribe me to it.

For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.

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