The following are some key combinations to get around a locked up Linux system:
- Shutdown X11: Ctrl-Alt-Backspace
- Switch from X11 to text login: Ctrl-Alt-F1, F2, F3 (don't do with a dual monitor setup in XP, you will lose one of your monitors :-()
If the above don't work try the following steps to shutdown:
- Ctrl-Alt-Del and wait 30 seconds for init to shutdown your computer
- If this fails use SAK(?). While holding down Alt-PrintScreen (SysRq key Combo) press the following keys
- 'S' to sync drives
- 'U' to unmount drives
- 'B' to reboot
- If all this fail, then take your life in yours hands and hit the power switch :-(
Note: You may see some activity when you press the 'S' key and 'U' key, but you may not. Don't give up. Continue to step 3 and hit the reboot key 'B' and wait. Even when I have saw nothing for the sync and unmount commands the boot command has worked.
This was gleaned from the following link: http://ubuntuforums.org/showthread.php?t=221174
hung hungup stuck lock lockedup
Hopefully next time I go looking for this info I can find it.
This system locked up today, and only SAK worked.