Thank you for your bug report, neither gnome-control-center nor unity changed yet, are you sure you don't use unity-2d which doesn't support that option? Could you add your .xsession-errors to the bug?
Thank you for your bug report, neither gnome-control- center nor unity changed yet, are you sure you don't use unity-2d which doesn't support that option? Could you add your .xsession-errors to the bug?