Desktop screen shot (2 monitors) ubuntu 14.04 (same for 16.04)
- normal colour = 1st monitor 3840 x 2160 landscape mode
- reddish colour = 2nd monitor 1920x1080 portrait mode anticlockwise (vertical position)
(http://img5.fotos-hochladen.net/uploads/4kh1920vijfg8pmx9s.png)
Click above thumbnail for full size view.
Looks like bottom part of preview window is beyond screen. See [OK] @ right hand side.
I wasn't certain, but now comparing AutoZoomed and none AutoZoomed. I looks indeed OK. Should have thought that before: comparing the 2.