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Thread: stuttering 3d and drm_wait_vblank error

  1. #1
    Join Date
    Jan 2007
    Posts
    33

    Default stuttering 3d and drm_wait_vblank error

    Hello,

    I have a ThinkPad T61 with the GM965 chipset and when I run an opengl application (ex: glxgears) the 3d movement is stuttering. I also get this message in the kernel log:

    Code:
    [drm:drm_wait_vblank] *ERROR* failed to acquire vblank counter, -22
    This machine:

    Code:
    $ Xorg -version
    X.Org X Server 1.6.1.901 (1.6.2 RC 1)
    Release Date: 2009-5-8
    X Protocol Version 11, Revision 0
    Build Operating System: Linux 2.6.30 i686 
    Current Operating System: Linux owned 2.6.30 #1 SMP Wed Jun 24 19:04:27 PDT 2009 i686
    Build Date: 24 June 2009  07:21:31PM
    
    $ lspci | grep GM965
    00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c) (prog-if 00 [VGA controller])
    xf86-video-intel and mesa are from GIT, built 06/24/09. The kernel is drm-intel from GIT, built 06/24/09.

    Has anyone else experienced this problem? Should I report a bug?
    Last edited by surfer; 06-25-2009 at 03:01 PM.

  2. #2
    Join Date
    Jul 2008
    Posts
    34

    Default

    Is your xf86-video-intel also from git? You should probably file a bug.

  3. #3
    Join Date
    Dec 2008
    Posts
    8

    Default

    Hello,

    Same problem here (eeepc 900A)
    when i launch glxgears i get
    Code:
    [drm:drm_wait_vblank] *ERROR* failed to acquire vblank counter, -22
    It happens with kwin or compiz.

    Code:
    $ Xorg -version
    X.Org X Server 1.6.1.901 (1.6.2 RC 1)
    Release Date: 2009-5-8
    X Protocol Version 11, Revision 0
    Build Operating System: Linux 2.6.24-23-xen i686 Ubuntu
    Current Operating System: Linux Taishan 2.6.30-sarvatt #1 SMP Wed Jun 10 12:05:52 EDT 2009 i686
    Build Date: 22 June 2009  11:33:28AM
    xorg-server 2:1.6.1.901+git20090622+server-1.6-branch.dbac41b6-0ubuntu0sarvatt~jaunty (buildd@rothera.buildd)
    Code:
    $ lspci | grep 945
    00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)

  4. #4
    Join Date
    Oct 2008
    Location
    Sweden
    Posts
    983

    Default

    Looks like it's not an uncommon problem:
    https://bugzilla.redhat.com/show_bug.cgi?id=494838

    I didn't find any upstream bug reports about it, so it's probably worthwhile to file it:
    http://intellinuxgraphics.org/how_to_report_bug.html

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