1920x1080

How can I change my display so it shows 1920x1080 on my monitor? I have a black band all around my Raspberry desktop.

Before posting, I did find an article to go sudo nano /boot/config.txt and remark out #disable_overscan=1

but that did not work.

I found it,

sudo nano /boot/config.txt
#console-width=1920
#console-height=1080