Same problem here. Lenovo Thinkpad, T60p with ATI video. I do have desktop effects enabled.
I usually don't notice it until I come back to work the next day (hours long wait, happens every day since 8.04 upgrade from 7.10), but today I experienced it in what must have been a few minutes of going into a black screen. Similar to other reports, there are other signs of life, when I press the power button I see disk activity as though something is responding to the button push. otherwise, no dice. just a black screen. There are other similar issues happing with the install, such as gnome-panel becoming unresponsive when I left click the clock applet; I'm presuming these are different & unrelated, but thought I'd mention just in case there's meaningful correlation. Also, virtualbox with windows xp guest is almost also running and is often times the last application I've used (keyboard capture?); again can't prove a correlation, but can't dismiss the possibility. Don't know what other data I could provide that could be helpful. Would be happy to do so if feasible/guided. -- Computer hangs after switch user or lock screen https://bugs.launchpad.net/bugs/223421 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
