[Mesa-dev] [Bug 40448] New: Unigine Sanctuary: window disappear when changing settings

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=40448

           Summary: Unigine Sanctuary: window disappear when changing
                    settings
           Product: Mesa
           Version: git
          Platform: Other
               URL: http://unigine.com/products/sanctuary/
        OS/Version: All
            Status: NEW
          Keywords: regression
          Severity: normal
          Priority: medium
         Component: Mesa core
        AssignedTo: mesa-dev at lists.freedesktop.org
        ReportedBy: pavel.ondracka at email.cz
                CC: jbarnes at virtuousgeek.org


When changing some settings in Unigine that causes the engine to restart itself
(for example shaders quality) after restart the Unigine window disappear. It is
still running just there is no window any more. 

4df137691ee29bb812347fa2c5f19095243ede22 is the first bad commit
commit 4df137691ee29bb812347fa2c5f19095243ede22
Author: Jesse Barnes <jbarnes at virtuousgeek.org>
Date:   Fri May 6 10:31:24 2011 -0700

    GLX/DRI2: handle swap event swap count wrapping

    Create a new GLX drawable struct to track client related info, and add a
    wrap counter to it drawable and track it as we receive events.  This
    allows us to support the full 64 bits of the event structure we pass to
    the client even though the server only gives us a 32 bit count.

    Reviewed-by: Michel Dänzer <michel at daenzer.net>
    Reviewed-by: Jeremy Huddleston <jeremyhu at apple.com>
    Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>

I'm not 100% sure about this commit since the issue is not always reproducible,
but it seems likely this can be it.

This is with r300g driver, RV530 card. Assigning to mesa core because of the
bisect results, I did try the llvmpipe, to see if other drivers are also
affected, however it is so slow here I can't change any settings.

Mesa: 110f846c2578357ebee4e6fab7d71e0e496493d3
GPU: RV530
Kernel: 2.6.40.3-0.fc15.i686 (probably renamed 3.0.3 for some reason)
Xserver: 1.10.3

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