Thank you for your bug. The value switching between hexcode and label is a known bug. Could you try to run "xev" and note the key event displayed when pressing the buttons when it doesn't work and when it works? Do you plug your headphone before or after login?
** Changed in: control-center (Ubuntu) Importance: Undecided => Low Assignee: (unassigned) => Ubuntu Desktop Bugs Status: Unconfirmed => Needs Info -- Keyboard shortcut setting from USB headphones problematic https://launchpad.net/bugs/76289 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs