What in the beginning it seemed like a software problem That it would be solved with an update, it seems that in the end it will not be like that and it is that since the beginning of the year sporadic cases arose where some users of MacBook Pro 15 and 17 inches declared having various graphic errors and even crashes.
The fact is that for a few days the problem is spreading among quite a few users of these models so we could affirm without any doubt that it is something generalized and not just sporadic.
The affected computers are from early 2011 as we have already mentioned, which integrate an Intel graphics in conjunction with a discrete graphics from AMD of different models depending on the configuration, graphics such as the Radeon 6490M, 6750M and 6970M.
Reported issues are screen discoloration, image distortion, or even the system hanging with a black screen. As in the 2010 computers, an automatic exchange system between graphics was included to adjust the consumption between the integrated and the high-performance graphics as much as possible.
It is now when it is commented in the Apple discussion forums that the definitive solution would have to happen by changing the complete motherboard of the equipment, something that without AppleCare or outside the official guarantee It could cost us between 350 - 500 euros.
My advice is that the best thing should be to be patient if the repair does not urge us too much because on other occasions Apple has encountered similar problems on some computers such as iMac with the hard drive replacement program and has launched a free replacement campaign of the part with the factory defect completely free of charge for the user.
More information - Apple Extends "White" Macbook Repair Program
Good afternoon, my case is curious, I have a MacBook Pro from December 2011 January 2012 and what happens is that in a particular house it cannot be turned on, it works in all places except there, it is not that I want to enter with it in the network and it does not work, it is that it does not even turn on, when you take it out of the house a few meters away it can be turned on, which is what happens because this is incredible.
I had problems with a MacBook model 2011 that started normal and as soon as I finished loading the apple it would go black. In this video I found the solution
http://youtu.be/EtoQjvpMRRo