I have the same problem and I have nvidia-experimental drivers installed on my system. Now my system is unusable and I will try the solution proposer by David on comment #5 and report back
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1166253 Title: Regression: Unity does not launch on startup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1166253/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs