I have just bought two 16x9 monitors and I already had a 21x9. The 21x9 is 25 inches and the 16x9's are 21.5. The 21x9 is not as tall which is being pain for eyefinity. When setting up eyefinity it gives me two options fit or fill and when I look elsewhere online I get told there are more options for re-sizing the desktop. I was wandering the best way to set this up for my circumstances. I am using 15.6.2 radeon settings app.