If I use my ATI 8500 card and turn off DRI in xorg.conf, I don't have any problems with hangs (Intrepid uptime over 8 hours!), so my problem is probably similar to Bug #141551
If I use my ATI 8500 card and turn off DRI in xorg.conf, I don't have any problems with hangs (Intrepid uptime over 8 hours!), so my problem is probably similar to Bug #141551