Help!

[RUGame17]

So I was messing around with my Pi trying to learn new things and when I tried to plug my PI into my monitor it wasn't displaying properly. It booted normally and was running fine no clue?
I used a HDMI to (its kinda like VGA but a rectangle and has 3 rows of 8 pins and has a weird pins that looks like - I think its called a DVI cord :/) It was receiving something because it would flash black every now and then.
I think it has something to do with the config.txt
HELP PLEASE!

[abunille]

@rugame17

Try this:
https://github.com/recalbox/recalbox-os/wiki/Connect-your-recalbox-to-a-DVI-screen-%28EN%29