How to make a custom resolution for games with limited resolution

[Jaden_7]

So I'm trying to play this game on a resolution so that it will go across both of my monitors, however the highest in game option for resolution is 1920x1080 is there a way to by pass this and make it a custom resolution?

 

[James Mason]

Custom resolutions won't do that, unless you ran the game in windowed mode, and the game would have to allow custom resolutions, which they might if they have .ini config files.
But you should also read up on Eyefinity: http://www.amd.com/en-us/innovations/software-technologies/enhanced-media/eyefinity
And Surround: http://www.nvidia.com/object/3d-vision-surround-technology.html

 

[Carnaxus]

As James said, monitor spanning is usually set up via your graphics card's settings software; it's not something a game can do on the fly.