[Bug 31465] New: [R420] KMS: Compositing unusably slow

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Nov 8 06:07:17 PST 2010


           Summary: [R420] KMS: Compositing unusably slow
           Product: xorg
           Version: 7.5
          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: redm at gmx.de
         QAContact: xorg-team at lists.x.org

Created an attachment (id=40120)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40120)
Xserver log

When I enable desktop compositing with KMS things get so slow that it's
basically unusable. The card I use is a Radeon X800 R420. Of course I'm aware
that this is not the latest model, but IMHO it should be perfectly usable for
simple desktop compositing. This is with KDE 4.5.2 btw.

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