Change the resolution from bash for Cent OS

Question

I changed the resolution of my monitor in KDE but it doesnt fit the screen and it shows an out of range problem is there anyway to reset or change it back from bash?

Answer 1

Use xrandr:

list available modes:

xrandr -q

select one:

xrandr -s n

where n is the number of the mode you wish to use. You can also switch between available modes with the keyboard using:

Ctrl Alt +

and

Ctrl Alt -

you must use the + and - symbols from the numpad though.

Answer 2

You should be able to edit xorg.conf to correct the resolution, and then restart X.