Ok I'm running the gtn 750 on a separate touch screen in a undocked window, any time I expand the gtn to fill the screen, it goes blank. (goes blank on any monitor when expanded to fill the screen) as long as the preset aspect ratio is kept up to a certain size it's fine. Expand it too much, the screen blanks and stops working.
Ryzen 7 8000
1080 and 1660 video cards
64gb ram
M2.ssd
5 monitors used.