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

[Brice Goglin]

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.
>
> When the screen is not rotated the performance is the same on both
> screes. This is not an issue of framebuffer size limits - it must be
> larger when the screen is not rotated.
>   

Please stop reporting hundreds on bug against the old 6.9.0 radeon driver.
You should work on debugging 6.12.2 instead, for instance by testing a
recent git snapshot and by raising your 6.12.2 problem to the upstream
bugzilla.
thanks,
Brice