Bug#457390: Screen is pixelated to the point of text being unreadable when Compiz is running

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Mike Vaughn wrote:
> Package: xserver-xorg-video-ati
> Version: 1:6.7.197-1
> Severity: important
>
> --- Please enter the report below this line. ---
> With the latest driver, the screen becomes pixelated whenever Compiz is 
> running. Switching back to KWin solves the problem. This is on a Radeon M6.
>   

Please send the whole output of
   /usr/share/bug/xserver-xorg/script 3>&1
so that we see your config and log (reportbug should have done that 
automatically though). It would be nice to do that *after* having 
launched compiz. in case some warning appear.

Also, you might want to switch to EXA for compiz now. Try adding
   Option "AccelMethod" "EXA"
to the Device section of xorg.conf.

Which xserver-xorg-video-ati were you using before? 6.6.193-3 from 
unstable? Can you some earlier snapshots of xserver-xorg-video-ati from 
experimental? http://snapshot.debian.net/ contains a lot of them. It 
would be nice to see whether the problem appeared recently or not.

Brice