a48c9d6cd9
When no output was specified, the screen limit was used to calculate the aspect ratio. The screen limit, however, is either just an arbitrary number if no screen limit is applicable, or a hardware graphics buffer limit, which has nothing to do with anything actually displayed. Change it to use the screen size instead, to get something that makes more sense when no output is found. https://bugzilla.gnome.org/show_bug.cgi?id=779745