Bug#537964: video-radeon: poor performance on rotated display

[Brice Goglin]

On Wed, Jul 22, 2009 at 03:34:07AM +0200, Michal Suchanek wrote:
> Package: xserver-xorg-video-radeon
> Version: 1:6.9.0-1+lenny4
> Severity: normal
> File: video-radeon
> 
> 
> When I rotate one screen the performance of drawing on that screen drops
> to levels on par or below software rendering performance.
> 
> glxgears speed is aproximately inverse-proportional to the part of gears
> shown on a rotated screen. Terminals can be seen redrawing .. from the
> physical screen top to the physical screen bottom, very slowly.
> This rendeing order is different from the logical orientation of the
> large virtual screen.