Looking at the log file, you're seeing an X server crash. Unfortunately the backtrace (below) is pretty scant. Can you still reproduce this issue on the released intrepid? If so, please collect a full backtrace - directions are at http://wiki.ubuntu.com/X/Backtracing. Thanks ahead of time.
(II) RADEON(0): RADEONScreenInit d0000000 0 0 Output 0 disable success Backtrace: 0: /usr/X11R6/bin/X(xf86SigHandler+0x79) [0x80c3069] 1: [0xb7fdb400] Saw signal 11. Server aborting. ** Summary changed: - ATI x1250 - failure during X startup + ATI x1250 - crash 0xb7fdb400 during X startup -- ATI x1250 - crash 0xb7fdb400 during X startup https://bugs.launchpad.net/bugs/281709 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs