Comment 16 for bug 16873

This sounds like what I'm encountering. The lockup seems random, but so far we
have not been able to go for more than an hour or so without it occuring. I have
tried a Radeon 7000 and a Radeon 7200 in this system; both cause a lockup. With
a Radeon 9200, the problem does not occur.

The system is an Athon 64 3200+, but we are running Hoary x86 on it. Motherboard
is an Epox E9NDA3+, which uses the nForce 3 chipset. I will attach a sample
Xorg.log and xorg.conf. It didn't seem to me that there were any clues in the
Xorg.log.

Martin: It might be interesting to know if you can reproduce the lockup if you
switch back to the ati driver, but set the UseFBDev option in xorg.conf.
(Unfortunately that's going to help me, as this system uses MergedFB.)