[SOLVED] Is there a way to change 16:9 to 21:9?

[Raikko Kiminen]

Hello, I recently came across "Linus Tech Tips" video in which they used a 16:9 monitor and somehow created a widescreen effect 21:9 by adding black bars top and bottom. Is that possible to do on any 16:9 monitor somewhere in settings (system or game) and how to do it? I understand the screen would be smaller but I would like to experience it. Thanks!

 

[rgd1101]

might be in the gpu driver settings - scaling or underscan