can i set pi/retropie to use a certain area of a monitor?

[aldub516]

im finishing a mini bartop build.. built with all scraps or extra materials and arcade parts just for fun and to keep budget low. I want to use an old monitor i have that will fit but the monitor screen is too big for the machine. The actual monitor fits in but you cant see the whole screen so i wanted to know if i can set pi to cut out portions of the screen/display on a given part. For instance if i want to cut off 3 inchs off the top, and bottom or whatever.. aspect ratio can be wacky if need be, but yea. Just wanna figure out how to or if i can do this.

[05SRT4]

Just did a quick google search and found this.

http://elinux.org/RPiconfig#Video_mode_options

Now I have never done this but I am thinking it may have something to do with the Over Scan options.

[mahuti]

Yes, it's the overscan options, and yes, you can cut off a LOT using overscan. 3 inches should be doable. 

Code: [Select]

disable_overscan=0
overscan_left=24
overscan_right=24
overscan_top=24
overscan_bottom=24

Here's the official Raspberry Pi docs on video config:
https://www.raspberrypi.org/documentation/configuration/config-txt/video.md

Search the page for disable_overscan and you'll see the rest of the options below.