Public bug reported:
I'm running jaunty on my Sony Vaio TZ190N.
Three times in the last two weeks I have experienced a total GUI hang.
The screen becomes totally frozen, although the mouse will still move.
The keyboard does not respond to ctrl+alt+2 (for example) to switch to a
console.
There is nothing of note in /var/log/messages or dmesg or .xsession-
errors or /var/log/Xorg.0.log.
It is still possible to ssh into the machine while it is in this state.
Killing compiz and gnome-related processes does nothing to the state of
the screen. Killing X with -9 as root caused the screen to be
corrupted, and the computer to entirely freeze. It was no longer
pingable after that.
After a hard reset, the computer was usable again.
** Affects: ubuntu
Importance: Undecided
Status: New
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X hangs for no apparent reason
https://bugs.launchpad.net/bugs/339982
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