I had the same issue, in fact filed a duplicate bug. Launcher and top panel disappeared entirely. Fixed by switching to a console and entering
unity --reset -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/924383 Title: compiz crashed with SIGSEGV in PluginClassHandler<GridWindow, CompWindow, 0>::get() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/924383/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs