[Bug 30759] New: black texture in gearbox demo on radeon 4850 (r600g)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30759

           Summary: black texture in gearbox demo on radeon 4850 (r600g)
           Product: Mesa
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: jradmacher at gmx.de


The gearbox demo shows a black texture on the cube instead of the moving gears.

But if I reduce the window size to about 50% the gears appear again. Also the
gears do not appear suddenly, they are shown partially at first. 

The gearbox demo work fine with r600c .

Versions tested: git from Okt 8 2010 and some older Versions (up to August),
drm-radeon-testing and 2.6.36-rc5 kernels, xserver 1.9, the bug can be found in
all Versions I tested

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