MacBook Pro screen flashing colours at startup

MariaHE

macrumors newbie
Original poster
Aug 12, 2019
2
0
my MacBook Pro (2011) suddenly began flashing red, green and blue when I try to start it up. Sometimes the screen is just flickering instead like there is some malfunction. I have tried different ways of starting it up, but it doesn’t seem to fix the problem. The computer itself seems to be working just fine. I’m currently in exchange in Costa Rica and I left my computer in a closet over the weekend - could it have something to do with a very humid climate or is there another reason?
 

mbosse

macrumors 6502
Apr 29, 2015
364
88
Vienna, Austria
my MacBook Pro (2011) suddenly began flashing red, green and blue when I try to start it up. Sometimes the screen is just flickering instead like there is some malfunction. I have tried different ways of starting it up, but it doesn’t seem to fix the problem. The computer itself seems to be working just fine. I’m currently in exchange in Costa Rica and I left my computer in a closet over the weekend - could it have something to do with a very humid climate or is there another reason?
Maria, is this a 15" or a 13" Macbook? Of its the former, it might well be the famous graphics processor problem.

Magnus
 

MariaHE

macrumors newbie
Original poster
Aug 12, 2019
2
0
Maria, is this a 15" or a 13" Macbook? Of its the former, it might well be the famous graphics processor problem.

Magnus
Hi Magnus. It’s a 13” MacBook Pro. Do you know of any problems with it or could it actually be the humidity?