The last screenshot shows, when Super is pressed maybe one or two seconds - and the numbers on the launcher aren't stuck yet.
Work around: If the numbers are stuck on the launcher - switch to an empty workspace with Ctrl+Alt+arrow-keys and back to the origin workspace, now the numbers on the launcher should be gone. ** Attachment added: "This is, when I press Super shorter - and the launcher isn't stuck yet ..." https://bugs.launchpad.net/unity-distro-priority/+bug/953089/+attachment/2925134/+files/Bildschirmfoto%20vom%202012-03-23%2022%3A40%3A03.png -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/953089 Title: Unity 5.6: key bindings (such as Super) don't work on empty workspace or on slow/loaded systems To manage notifications about this bug go to: https://bugs.launchpad.net/compiz-core/+bug/953089/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp

