It certainly seems to be some sort of buffering issue on the GPU. If I've been on my 11.04 install and then reboot to my 12.04 install I see remnants of the 11.04 when logging in on 12.04.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/949958 Title: Full screen video corruption on nvidia & ati between lightdm and desktop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/949958/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs