Does your X server remain completely frozen? I mean, is it still responsive to client requests? Does it still respond to the keyboard? (e.g. does it die when you hit Ctrl+Alt+backspace? But note that for this to work you will probably need to set Option "DontZap" "off" in Section "ServerFlags").
In case it is really frozen and you have access to gdb, a backtrace at the place it hangs would be useful. It might also be interesting to know if some combination of the following Section "Device" options makes any difference: > Option "NoAccel" > Option "UseBIOS" "true" > Option "HWCursor" "false" > Option "mclk" "0Hz" -- Screen blanks and freezes after a few minutes of idling, possibly due to broken DPMS https://bugs.launchpad.net/bugs/136853 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