I have this Macbook Pro from June and the problem appeared a couple of days ago. I think it was started by opening and closing the lid twice while in sleeping mode! 
After it has started up, the screen returned to its normal brightness every time but a full white screen with full brightness is annoying, especially in darker lighting condition! How to fix this?
After it has started up, the screen returned to its normal brightness every time but a full white screen with full brightness is annoying, especially in darker lighting condition! How to fix this?