I found the same as anthony. Running sudo aptitude purge xserver-xgl
fixed the problem for me -- Can't log in after upgrading https://bugs.launchpad.net/bugs/136529 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs