[Bug 21469] New: kwin composite fails with radeon when using DRI2 and KMS

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=21469

           Summary: kwin composite fails with radeon when using DRI2 and KMS
           Product: xorg
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: shawn.starr at rogers.com
         QAContact: xorg-team at lists.x.org


When trying to use kwin composite effects, I get massive window corruption 

See video: http://www.sh0n.net/spstarr/corrupt-composite.ogv

Windows go grey, and window contents are not visible, sometimes visible when
dragging.

compiz however, has no problems.

I'm not really able to provide much for debug other than the video for the
result of corruption seen. It remains to be seen if this is a driver bug or a
kwin bug.


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