Are those keys detected at all in the system? It could even be a kernel issue. Could you please look at https://wiki.ubuntu.com/Hotkeys/Troubleshooting ; and provide the info pointed there to the report? Thanks.
** Changed in: gnome-control-center (Ubuntu) Importance: Undecided => Low ** Changed in: gnome-control-center (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/893851 Title: Brightness adjustment gauge in gnome-control-center screen not responding to brightness hot-keys To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/893851/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs