I'm wondering whether http://bugzilla.gnome.org/show_bug.cgi?id=406028 or http://bugzilla.gnome.org/show_bug.cgi?id=107031 might be better upstream bugs...
-- No handler for control sequence `device-control-string' defined https://launchpad.net/bugs/39075 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
