[Bug 21508] New: low fps with radeon driver

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri May 1 09:48:43 PDT 2009


           Summary: low fps with radeon driver
           Product: xorg
           Version: 7.4
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: rafkind at cs.utah.edu
         QAContact: xorg-team at lists.x.org

Created an attachment (id=25339)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=25339)

When I upgraded from ubuntu 8.04 to 9.04 I had to ditch the catalyst 9.3 driver
and use the open source radeon driver. In glxgears with the catalyst driver I
was getting +1000fps but with the radeon driver I get 300fps. I have not
quantified other drawing operations but the system now is definately much
slower than before.

Is there something I can try to speed things up?

Attached are glxinfo and Xorg.log. I can provide any other information

$ lspci -vnn | grep -i radeon
01:05.0 VGA compatible controller [0300]: ATI Technologies Inc RS690M [Radeon
X1200 Series] [1002:791f]

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