I experiences a different bug that may be linked to this one : when I plug my TV on external VGA display, gnome monitors settings shows only 640x480, 800x600, 1024x768 as possible dimensions for my TV.
It is a regression, because under Maverick, I can set 1366x768 and other 16/9 dimensions. A workaround is using xrandr commands to force a new mode.
I experiences a different bug that may be linked to this one : when I plug my TV on external VGA display, gnome monitors settings shows only 640x480, 800x600, 1024x768 as possible dimensions for my TV.
It is a regression, because under Maverick, I can set 1366x768 and other 16/9 dimensions. A workaround is using xrandr commands to force a new mode.
Does this interrest you ?