This has happened to me for a couple of months on Ubuntu. It's weird, a week ago it cleared up, but now it back. I'm attaching dmesg. I hope this will help you out. I don't know if gdm starts or stops or if something else in the background is happening or not happening. I will give you any other help you need to find the culprit.
** Attachment added: "dmesg.log" http://launchpadlibrarian.net/12314909/dmesg.log -- Login screen appears twice in (X)Ubuntu Hardy https://bugs.launchpad.net/bugs/178324 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
