Comment 45 for bug 138691

"reboot=b" didn't make any change on "Machine 3" (Asus M2A-VM). I did, however, find a few more things on both desktop machines (as the laptop is still on 7.10, I'll focus on the two 8.04 machines):

- Adding some extra wait time in /etc/init.d/kdm after stopping kdm and before calling usplash_down did not make any change
- If I use "shutdown -P now" remotely (i.e. via a ssh session as root (root account *is* enabled)), the machines seems to shut down properly all the time
- If I use "sudo shutdown -P now" from a Konsole, the machine hangs on shutdown as described
- If I do an "su -" first in Konsole to become 'root', a subsequent "shutdown -P now" will successfully shut down the machine
- When the machine hangs, I can actually use "Ctrl-Alt-Del" to get the shutdown process to continue. The first message I see then is "Main rc0 process killed". Also, I get a message about "shutting down kdm... ...kdm is not running". However, in this case, the machine will not shut down all the way, instead, I end up with a black screen with a white blinking cursor in the top left corner.

For completeness, as X seems to play some kind of role:
- "Machine 2" (Asus P5L-1394) has an nVidia 7300LE VGA card
- "Machine 3" (Asus M2A-VM) has an ATI Radeon RS690/Radeon X1200 Series VGA card (onboard)