My problem was clearly caused by the aborted update leaving some packages in a state of limbo; I ran dpkg in recovery mode and it solved the problem. I note several xorg packages were not installed properly during the initial failed update.
-- gdm does not take input on login https://bugs.launchpad.net/bugs/565037 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
