Custom Resolution Utility (CRU)

[MrVibrating]

I want to set up impossible screen modes solely to be used by windowed games spanning monitors.

I have 3 naff 1280x1024 monitors off a 1080Ti, for triplehead gaming.

Games with resizable or custom windowed sizes obviously span all 3 screens without issue..

..however many games will only offer window sizes that match the available screen mode resolutions.. in this case the standard resolutions up to 1280x1024.

So, i want to set up 3840x1024, even though i have no intention of trying to switch to it as a screen mode; - it will purely exist so that the above games will offer it as an available windowed resolution, thus to span all 3 monitors just like games with custom or resizable window resolutions.

Obviously, i'm having trouble setting up these impossible modes - the numbers get coloured red and the mode cannot be set..

Is there a workaround for this?

I found one already - simply connect a Matrox TH2G unit, and the 3840x1024 values are accepted.. except now the whole trick's redundant as the TH2G can provide such modes out of the box... obvs tho, in principle this extra hardware's entirely unnecessary if i only want a 'spoofed' standard res for spanning windowed modes.. see what i mean? I wanna be able to run without all the extra cabling and power consumption of this essentially-redundant extra peripheral..!? I already have viable triplehead hardware for spanning windowed modes!