@mitu Well, a small issue with that.... When I select Xorg, my screen completely glitches out. I can barely see anything. Like, a few pixels of red and the "Co" from Gameboy Color. And those are like, solid red and solid blue. Like as if it's #FF0000 and #0000FF. I actually had to completely reset my Ubuntu install due to this because I couldn't find the buttons to log out and fix it. This also happens if I choose "Try Ubuntu" on the Ubuntu install USB stick I have. I have genuinely no idea what causes this, I'll try to get some pictures of it.

@mitu

Thank you Mitu, but for me, a power-user at best, thats going to be like looking for the proverbial needle. Before I spend hours trying to troubleshoot this Ill just save my roms and do a fresh install.

Thanks anyway and kind regards

Figured it out. If I change it through the in-game RetroArch menu, it takes hold.