Have you checked if the headphone volume is not just muted? Double-click on the volume icon. The mute/unmute button is at the bottom under "Headphone"
** Changed in: gnome-audio (Ubuntu) Sourcepackagename: gnome-audio => gnome-applets Severity: Normal => Minor Assignee: (unassigned) => Ubuntu Desktop Bugs Status: Unconfirmed => Needs Info -- Sound Control Not work with headephone https://launchpad.net/bugs/34842 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs