[i945GM] [UXA] X crash when coming back from suspend

[Francis J. Lacoste]

Binary package hint: xserver-xorg-video-intel

I've turned on UXA to get better graphic performance, but when I get back from suspend, I'm back at the KDM login screen (instead of within my Kubuntu session).

This is different than bug 339091 (that I'm experiencing when EXA is turn on) by the fact that I'm always back at the KDM screen and that the setting of 'Desktop Effects' doesn't affect the issue.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
Package: xserver-xorg-video-intel 2:2.6.3-0ubuntu8
ProcEnviron:
 LANGUAGE=en_CA.UTF-8:en
 PATH=(custom, user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcVersion: Linux version 2.6.28-11-generic (buildd@palmer) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #40-Ubuntu SMP Fri Apr 3 17:39:51 UTC 2009
SourcePackage: xserver-xorg-video-intel
Uname: Linux 2.6.28-11-generic i686

[lspci]
00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub [8086:27a0] (rev 03)
     Subsystem: Dell Device [1028:01d8]
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03)
     Subsystem: Dell Device [1028:01d8]

[Francis J. Lacoste (flacoste)]

The following dmesg entry are probably related:

    pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
    pci 0000:00:02.0: setting latencytimer to 64
    PM: resume devices took 3.560 seconds
    PM: Finishing wakeup.
    Restarting tasks ... done.
    synaptics was reset on resume, see synaptics_resume_reset if you have trouble on resume
    python[4982]: segfault at 1c ip b7a23821 sp bf9fbe00 error 4 in libQtCore.so.4.5.0[b78be000+238000]
    ksmserver[4844]: segfault at 4 ipb696cf46 sp b37047b0 error 4 in libQtDBus.so.4.5.0[b692b000+73000]

[pittipatti (pittipatti)]

I can confirm this behavior on my Samsung Q45 laptop runnig the 64-version of Kubuntu.

The bug still exists in the today's SVN-Build from xorg-edgers ppa (2.6.99.1+git20090416.b9716b83-0ubuntu0tormod)

[pittipatti (pittipatti)]

But I can't reproduce the Bug when starting in failsafe mode instead of KDE.
Even when I run Kwin and plasma from there I can suspend and resume.

But when I start KDE using startkde the bug however returns.

[pittipatti (pittipatti)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug #322202, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.