Nick Koretsky composed on 2017-05-11 08:12 (UTC+0300):
0:0 is always an upper left corner of the leftmost display.
This sounds like a problem we may have solved or found a workround for. Without reading the whole thread I don't remember:
https://lists.opensuse.org/opensuse-factory/2017-02/msg00431.html
So if i would be forced into multiple display on a single screen i will have to set TV as a right display logically, at try to get used to moving mouse to the opposite edge to to move between displays :(
Assuming there is no proper solution to be found, might you find it easier as a workaround WRT mousing to logically position the extra display below instead of where you want it in its physical location left? At least the moves would be shorter up/down than sideways. :-p