This sounds like compiz causing a DRI crash. Try disabling "Desktop effects" or add Option "DRI" "off" to the Device section of xorg.conf
However I also saw some garbage in your log: II) RADEON(0): v_active: 800 v_sync: 802 v_sync_end 808 v_blanking: 823 v_border: 0 (II) RADEON(0): CD516154W01 (II) RADEON(0): .>LWz折 (II) RADEON(0): EDID (in hex): -- Login fails, X crashes[Gutsy daily-live 20070925, AMD64] https://bugs.launchpad.net/bugs/144760 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
