Join Two Displays into Ultrawide Screen/Desktop/Game (2x 1920x1080 = 3840x1080) [NVIDIA Cards Only]
Using Nvidia Control Panel to set up multiple monitor displays in surround spanning mode configuration.
0:00 Intro
0:04 Nvidia Control Panel Configuration
1:48 Test
2:16 Gaming
AMD cards and Intel cards also can do that but you have to use their tools for it.