I have the same problem but it occurs only rarely, may be once or twice from 100 log in. The only way to get out of it is a cold restart and eventually again two, three times. I have discovered it on two different machines, both are running on the GNOME 3 classic desktop. The problem was not existing under Lucid, it started with Precise LTS.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/925048 Title: [GTX 580] X seems to hang a login prompt -- PFIFO errors in dmesg To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/925048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs