I have the same issue (Unity disappeared after a reboot without a reason) but I can't work around it in any way. None of the workarounds mentioned in this report work for me. I still have no Unity launcher nor system bar, and hence my system is completely unusable.
For god's sake how can this be getting so little attention? This is HUGE. ** Changed in: unity (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1212987 Title: Unity not starting after boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1212987/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs