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

[bugzilla-daemon at freedesktop.org]

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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