Well, my experience on windows was always that the 'getting it wrong' was just choosing to play the game exclusively on the primary display. This at least leave

Well, my experience on windows was always that the 'getting it wrong' was just choosing to play the game exclusively on the primary display. This at least leaves the game playable, and it never bothered me, I could never get used to paying attention to two screens joined into one for gaming. The result on linux is to literally make the game unplayable unless you manually disable extra displays.