Bug#461144: xserver-xorg-video-ati: xorg hangs when starting blender

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

Alessio Frusciante wrote:
> Package: xserver-xorg-video-ati
> Version: 1:6.7.197-1
> Severity: important
>
> When I start blender the system becomes unusable (I can move the pointer, but the clicks have no effect and the 
> keybord doesn't work either). Pinging from another machine works. Until version 6.7.196 I experienced random hangs, but not during start-up of blender. Using vesa driver instead of ati doesn't seem to trigger any problem.
>   


Try adding
    Option "AGPMode" "4"
or "8" to the Device section of xorg.conf.

The default AGP mode has changed in 6.7.197. It fixed some machines and
broke some others.

Brice