It was happening for long time also after upgrading to 15.04. But once unity completely disappeared and I found
<code>dconf reset -f /org/compiz/ && setsid unity</code> which completely solved my old problem http://askubuntu.com/questions/204428/unity-missing-cant-see-top-or-side-panels http://askubuntu.com/questions/620947/how-do-i-reset-my-unity-configuration-on-15-04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1292203 Title: compiz crashed with SIGSEGV in ScaleScreen::getWindows() To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1292203/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs