Bug#463076: xserver-xorg-video-ati: machine freezes when X is stopped or second X started

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

Bram Senders wrote:
> Package: xserver-xorg-video-ati
> Version: 1:6.7.198~git20080117.6bd510a2-1
> Severity: important
>
> Hello there,
>
> I have a PowerPC Mac Mini with a Radeon 9200 inside, and did a fresh
> install of Debian Sid on that.  I got bitten by bug #457563, where
> starting X would instantaneously freeze the machine, but upgrading to
> the latest experimental version of xserver-xorg-video-ati fixed that, as
> suggested.
>
> However, I now have the problem that the machine freezes when the X
> server is stopped...  Just a hard freeze when I try to logout, or
> shutdown the machine, or restart gdm; anything that kills the X server
> causes the entire machine to lock up.  My Xorg.0.log contains no
> information about stopping X.
>
> The same freeze occurs when I try to start a second X, via "X :1"
>   

A random guess would be try adding
   Option "AGPMode" "4"
or "8" to the Device section of your xorg.conf (or Option "BusType" 
"PCI"). But this generally helps fixing crashes near X startup, not when 
leaving X like here.

Did you ever try another 6.7.19x package from experimental (apart from 
the buggy 6.7.197)? It would be nice to know when the problem first 
appeared. These old packages are available through snapshot.debian.net

Brice