Comment 24 for bug 776999

same issue here.
8GB mem
running 11.04 x64

~most~ of the time, the system cycles just fine. Been running 64bit out of the gate on discrete graphics (Quadro disabled in the BIOS).

However, in the past 2-3 days, the system does not behave well when booting from cold or warm reboot. it hangs on restart & then I have to seriously jerk the thing around to get it to come back up.

AC power/Batery/Docked/Undocked...doesn't matter. One thing that is weird. It seems to act a little better when I boot up with my Seagate portable eSATA drive connected. Who the hell knows why that would be, but in any case...i go from about 40% success to 70% success on reboot when that sucker is plugged in.

I never use the dimming buttons (Fn+Home/Fn+End), but tested it for S & giggles....it froze the box. I'll try the recommended xorg fix above to see if that does anything.

I really need the extra memory & can't really go back down to 32bit. I run a couple virtualbox systems at the same time and having enough mem is important. also having multiple monitors is important too.