Thank you for your bug. Do you still have that problem? What video driver do you use, ati or fglrx? Do you have anything to /var/log/syslog, /var/log/messages or /var/log/Xorg.0.log about the problem? ** Changed in: gdm (Ubuntu) Status: Unconfirmed => Needs Info -- Login screen bug https://launchpad.net/bugs/61198