Thank you for your bug. Compiz overrides the key settings in System>Preferences>Keyboard Shortcuts however these keys still work if compiz has not used them for anything else.
Specifically for alt-F2 you will have to install compizconfig-settings- manager and modify the keys compiz has configured for the run dialog: System>Preferences>CompizConfig Settings Manager>Gnome Compatibility ** Changed in: compiz (Ubuntu) Importance: Undecided => Low ** Changed in: compiz (Ubuntu) Status: New => Triaged -- Compiz overrides custom keyboard shortcuts https://bugs.launchpad.net/bugs/257878 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs