Kid decided he wanted Linux. I don't speak Linux. I told him to do research in order to choose the one he wanted. He went with manjaro. Last night I made a USB stick, installed it and boom. Easy as pie.
He messed with the resolution and I'm guessing he picked an unsupported resolution and lost his screen. Then he restated the PC . Now I think it's locked in that resolution. After login the screen keeps switching from blue to black and so on...
No how do I get it back to a supported resolution.
I tried the stick to boot it and went to the grub file but can't modify it. Permission denied. I'm guess cause I'm not using the root user.
Again I don't speak Linux