For Ubuntu 22.04 or 20.04, Unixcop provided two methods for adjusting the screen resolution.

Two ways to change the screen resolution in Ubuntu 22.04 / 20.04

Talking to some friends who have just installed Linux, I noticed how something as simple as changing the screen resolution can be a bit complicated to do. So in this post you will learn how to do it both from the graphical interface and from the terminal. 

Two ways to change the screen resolution in Ubuntu 22.04 / 20.04