My display stopped working, showed weird patterns and shut off at random. My graphics basically looked like striped christmas wrapping. I got a 15" MacBook Pro Late 2011 model.
Some googling for the issue on my iPad showed that baking my logic board, as weird as it sounds, might actually be the solution. Since it was a dead logic board in my eyes, I was willing to give it a try. Correctly put, this process should reflow some of the solder on the logic board and connect it properly.
And later I found out these video issues are a thing, thus Apple offering a repair for these models. If you happen to have this video problems: You might want to turn it in at your local Apple repair store.