I filed this bug report on Ubuntu a couple of days ago.
#1609135 PPC Corrupt display ATI X800 XT
<https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1609135>
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1609135
I have a dmesg glxinfo and Xorg.0.log from a time when the X800 worked
if that would be of use, but I suspect that it would not. The problem is
that the machine locks up when the display is corrupted so I don't know
how to get that information.
Regards
Scott Thompson
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