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. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776999 Title: [Lenovo W520] laptop freezes on ACPI-related actions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/776999/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
