I can confirm this problem. I'm running a new installed system (kubuntu feisty beta + latest updates). When I want to log off, all I get is a black screen. Switching to a terminal is impossible. I have a nvidia geforce fx 5200 go card with "nv" driver.
-- feisty logout crash https://launchpad.net/bugs/86615 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs