Bug#537964: video-radeon: poor performance on rotated display
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.
>From what I've seen in one of your other bug reports,
you seem to be running Debian's 2.6.30 kernel without
the firmware-linux package.
Please install firmware-linux since it is necessary
for hardware acceleration on some boards and I guess it
may help for rotation.
Brice
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