Dual monitor problem

[Matthew1974]

I'm doing a fresh installation with a machine with two identical graphics cards and two identical monitors.

When I set the resolution of both the monitors to 3440x1440 then one of them goes nuts and doesn't display correctly but the other does display correctly.

If I set the resolution of one of them to 2560x1440 then it will display correctly.

Both graphics cards are MSI Geforce GT 710 with 2GB. Absolutely no difference.

But I can not have both screens set to 3440x1440 at the same time.

 

[atanere]

Hi @Matthew1974, and welcome! I'll take a wild guess at this one... and I may be way off (not for the first time).

I'm guessing it's a problem with "aspect ratio." Your 2560x1440 is a perfect 16:9 (wide screen format). But 3440x1440 is not. If you have available a 3440x1935, give that a try and see if it works. Or try other "matched" 16:9 formats.

Math examples:

2560 / 16 = 160, and 1440 / 9 =160 (matching number 160)
3440 / 16 = 215, and 1935 / 9 = 215 (matching number 215)

Cheers