I have a triple monitors and use extended displays and enable eyefinity on games that need it.
Well, I've had huge issues setting this up. I finally got it right last reinstall, but got this weird glitch I can't replicate.
Last time, I setup eyefinity, then disabled it, then set profile for my game (ETS2) to use eyefinity, then when I started the game it went all three monitors. But when I exited the game, after it disabled eyefinity, the left and right monitors went disabled and shut off and only the center monitor stayed working. I hated it at first, but I rarely ever use my other monitors anyway. so now I miss it and want it back.
So does anyone know how to disable my unused monitors in the crimson drivers, or wherever I set this setting.
Not sure if this is what you're after but I use Win10's PROJECT setting to change monitor arrangement except of course eyefinity.