I'm having issues trying to setup my dual monitor setup in Ubuntu GNOME 16.04 (GNOME 3.20).
I use my external monitor in portrait mode as primary screen (Dell 2209WAf - 1680x1050) and my laptop as secondary screen (ASUS K55n - 1366x768) and it kinda works but the border of the window I have open on the primary screen overlay into the secondary.
It's not visible on a screenshot but I took a photo of the issue with my phone so you have a better idea of what I'm talking about:
Tried googling for solutions to this issue but haven't found any that fixed it.
Any ideas on how to fix this? Thanks in advance!