Screen goes all red, then green, then blue
I opened my MBP last night to find that the screen was alternating between all red, then all green, then all blue, then all grey then vertical bars and continually repeating that pattern. I rebooted it and got the same result. I hear the start up tone but there’s nothing on the screen but the solid colors or vertical bars. Any ideas? Thanks if advance,,
Is this a good question?