Also is "xorg-driver-ati + fgrlx" that you've tried both or that you're using just fglrx? Fglrx has had such hanging problems with amd64, and it's not related to the xserver-xorg-video-ati driver.
-- Logging out X hangs system https://launchpad.net/bugs/45857 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
