Is it possible that you incidentially upgraded to the bad xorg package: http://www.ubuntu.com/UpgradeIssue That problem was about pci detection.
Otherwise, please attach the Xorg.0.log and your xorg.conf -- Xorg and ATI X600 - RV370/380 (5B62) doesn't work https://launchpad.net/bugs/57308 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
