I don't know how it happened, but one of my full screen apps, when launched for the first time, opened on my secondary display. Now no matter what I try, the app always launches on this secondary display.
How can I tell this app, to use primary display?
I use two displays, one horizontal (primary), one vertical (secondary). I tried assigning the app to particular desktop, but this does not help because the app window remains vertical on my horizontal display.
I managed to drop the app into windowed mode after it launched. Then I moved the window to the primary display and maximized it again. It worked fine, however when I quit and launch the app again it starts full screen on my secondary display.
Is it possible that it's the app itself that chooses the secondary display instead of primary for full screen work? That wouldn't make much sense.