Do you have ubuntu-desktop, unity, overlay scrollbars, global menus installed on your system? (Not necessarily activated, but installed).
If so this is probably https://bugs.launchpad.net/bugs/1314782 And even if you don't, it still might be that bug... ** Changed in: xfce4-volumed (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1303226 Title: process still runs but does not respond to media key presses To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfce4-volumed/+bug/1303226/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs