Comment 7 for bug 31527

I got the same bug with both Debian and Dapper... Looking through the web I got this :
http://www.spinics.net/lists/xorg/msg14673.html

I tried version 6.5.8 version of xserver-xorg-video-ati package on my Debian etch+unstable (mixed) and DRI works since a few minutes from now.

This is not really a fix for Ubuntu, but maybe this would be useful to know this fix here (as I often fall here when I look for informations about this bug).

And many thanks to Benjamin Herrenschmidt and all people who do great work for our best enjoyment ! :)