Can it be that the fix stopped working in a later package? I have the same problem as described above, although I'm using buttons 6 and 7 (scroll wheel left/right) to switch between workspaces.
Compiz package 1:0.9.11+14.04.20140423-0ubuntu1 is installed. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1304877 Title: Functions assigned to extra mouse buttons in compiz do not work anymore. Status in Compiz: Fix Committed Status in “compiz” package in Ubuntu: Fix Released Bug description: This is in Ubuntu 14.04 Trusty beta. Using CompizConfig Settings Manager I have assinged functions to my mouse's buttons 8 and 9 (the thumb buttons). After some recent update they stopped working, unless the desktop is focused. I would expect that if I explicitly specify a mouse button for a function, it must work globally. To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1304877/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp