I am experiencing these same symptoms on my Dapper Drake installation. I have random screensavers set to go off after 15 minutes of idle. It doesn't seem to matter which screensaver runs, but it may be fine for several days, or it may happen within one day.
I do not use nVidia--I have an ATI Radeon 8500 board (ATI Technologies Inc Radeon R200 QH). I find that even after this console lock-up, I can log in from another box on the network and, using top, see that the Xorg process is using over 99.5% of the CPU. The command response on that foreign login session seems fine, despite this level of resource consumption. That's the good news. The bad news is all my efforts and those of some of my more savvy Unix-heads have failed to remedy the issue. The runaway Xorg process puts a death-grip on the box, and no "kill -9" or "init 3" seems to be able to change it. The only thing that works is a reboot or shutdown. This puts a damper on my "Linux-is-better-than-Winders" gloating, so please fix soon :) Oh, and please advise if you require any further configuration file or other input from me. Thanks! --Hoola -- 7.04 screensaver freezes keyboard and mouse https://bugs.launchpad.net/bugs/107870 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs