Bug #1543467 “Unity8 can't correctly display multi-surface apps ...” : Bugs : unity8 package : Ubuntu

Unity8 can't display multi-surface apps (including menus and tooltips). Fixing bug 1497085 was a great start. However instead of crashing Unity8 now just shows the most recently created window by the app in the apps /single window/, and stretches it too. When such a secondary window like a menu or tooltip closes, you never get back to the original app window. So existing apps still aren't quite usable yet. Test case: sudo apt-get install mir-demos mir_demo_client_multiwin -- --desktop_file_...