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Macbook Pro screen becomes blue every time a discrete graphics card is used!

The screen color of my 2011 17" Macbook Pro changes to blue-ish every time the discrete graphics card is used! That started to happen only after I upgraded to OS Mountain Lion!


Whenever I open any app that use Discrete graphics card by default, the screen becomes blue and looks terrible.. Applications include, VLC, Chrome (20.0) and I guess quite a few others!


So now efectively my Macbook Pro has just one usable video-card - the buit in one, because the discrete card (AMD Radeon HD 6750M) is not usable!


Here's some other forums set up about this problem, so it's not just me:

http://forums.macrumors.com/showthread.php?t=1401741

http://forums.macrumors.com/showthread.php?t=1392978


***..!? Apple, please fix this ASAP!!!

MacBook Pro (17-inch Early 2011), OS X Mountain Lion

Posted on Jul 27, 2012 8:35 AM

Reply
133 replies

Oct 25, 2012 8:30 AM in response to mrtsk

I'm on 10.8.2 for some time now. Haven't had this issue before. But yesterday when I tried to shutdown, my macbook pro got stuck on the shutdown screen. I held the power button to shut it down. Then today I'm having this blue screen issue. Not sure if they are related though... It happens with iFinance at first then goes away. Now it happens with VLC and won't go away...


Getting my hand on the gfxCardStatus right now, but definitely hope for a real fix SOON!!!

Oct 25, 2012 1:50 PM in response to mrtsk

here the solution:


Last Driver download:#


http://www.nvidia.de/object/cuda-mac-driver-de.html


important !!!!


To run CUDA applications, it is necessary to uncheck the Automatic Graphics Switching checkbox in the Energy Saver panel of the System Preferences.


then sign off or reboot 😁


to check use the solution download gfxcardstatus


--> no more blue!!! :-)))))


Regards

Alberto


Oct 29, 2012 11:31 AM in response to FlaY

Hi.

I had a "date" today with an expert ;-) in an official apple store (CentrO Oberhausen in Germany). After 1 Hours discussion, he told me that this issue is new... and not known (also in the Apple "system").


My personal solution is to deactivate the internal graficcard (as described above) without gfxcardstatus, because this programm has also a changeover feature.


Furtherfore the CUDA driver is made for this issue:


page description: (NVIDIA)

---------------------------------

• There is a known issue in this release where CUDA applications will not automatically engage the discrete GPU on 2012 MacBook Pro models with automatic graphics switching. To run CUDA applications, it is necessary to uncheck the Automatic Graphics Switching checkbox in the Energy Saver pane of the System Preferences.

--------------------------------

sounds suspect ;-)


At the end of my "apple date" the genius bar expert had an internal discussion and he told me that this issue is still known ;-) and the apple engineers are working on that (maybe a firmware update will come)....

Who will believe can believe.... I think he had no more ideas.


So I think we will had to wait and I strictly recommend to uncheck the Automatic Graphics Switching checkbox in the Energy Saver panel of the System Preferences.... I don´t think that the battery will be faster empty.


Regards

Alberto

Nov 8, 2012 2:02 PM in response to mrtsk

I've been dealing with this issue in a Early 2011 MacBook Pro for a few weeks. It just *started* happening, even under 10.8.2.


The logout/login trick works, but is not optimal. I also have FileVault 2 on.


Today on a lark, I reset my SMC, and upon restart, the colors are correct. I don't know if this will hold or not, but I'll keep people posted.


Resetting SMC: http://support.apple.com/kb/HT3964?viewlocale=en_US&locale=en_US


Edit: Ok, it did not stick through as shutdown/restart


Message was edited by: Steven W. Riggins

Nov 17, 2012 12:26 AM in response to EEaudio08

I have figured out my issue - FileVault 2. I had suspicions after going back and looking at what I had changed recently, and turning on FileVault 2 was one of them. I turned it off, rebooted, and the blue tint issue was gone. I shutdown, rebooted, no blue tint.


So the theory that the color profiles are not gettig set up properly seems correct, and may be triggered by several things. I have a Samsung M830 SSD in this 2011 macbook pro, and the color is fine without FileVault 2 enabled.


Once it is fully disabled (about 3 hours it says) I will turn it back on and test again.

Macbook Pro screen becomes blue every time a discrete graphics card is used!

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