So i am using an early mbpr 2013 with a mini display to display port on an external Samsung U28D590D - i messed up the resolution ( anything above 2560 won't work for some reason), so now the screen is black.
Tried the PRAM reset but it didn't work.
Any idea how i can reset the screen resolution for the external one, because right now i just have a black screen.
Tried the PRAM reset but it didn't work.
Any idea how i can reset the screen resolution for the external one, because right now i just have a black screen.