[Bug 30299] New: occasional screen tearing with r500 card

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30299

           Summary: occasional screen tearing with r500 card
           Product: xorg
           Version: 7.5
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: hramrach at centrum.cz
         QAContact: xorg-team at lists.x.org


Created an attachment (id=38837)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=38837)
drm kernel logs

linux 2.6.32-2.6.36
xserver-xorg-video-radeon 1:6.13.1-2
xorg-server 2:1.7.7-4

Every few minutes the picture on the screen moves sideways momentarily.

I have two monitors attached.

Screen 0: minimum 320 x 200, current 2048 x 1024, maximum 8192 x 8192
DVI-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm
x 271mm
   1280x1024      60.0*+
   1024x768       60.0  
   800x600        60.3  
   640x480        60.0  
   720x400        70.1  
S-video disconnected (normal left inverted right x axis y axis)
DVI-1 connected 768x1024+1280+0 left (normal left inverted right x axis y axis)
304mm x 228mm
   1024x768       75.0*+   75.1     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        72.8     75.0     66.7     60.0  
   720x400        70.1  


With rv515gl the issue happens DVI-0, with rv530le the issue happens on DVI-1.

It seems the issue goes away on rv515gl when running a d3d application over
most of the screen.

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