MacBook Pro 9,2 Display Green

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MacBook Pro 9,2 Display Green

One of my users from the UK has a MacBook Pro 9,2 13". He had been complaining that the screen would display green when using a video app like FaceTime or Skype or even just viewing a YouTube video. He said would start at the left side of the screen and progressively get worse. I worked on it this morning and could not get it to fail. I first ran Permissions Repair and FSCK -FY and ran some streaming video but it did not display the green. After returning the machine to him about a half hour later he returned and showed it to me an sure enough green pixels where it should be a different color and it was not consistent in the pixels that showed the green. I have never seen this behavior before, any help would be

MacBook Pro, OS X Mavericks (10.9), 4GB RAM, 500GB hard disk

Posted on Dec 10, 2013 2:55 PM

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Answer 1

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leroydouglas

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Dec 10, 2013 3:55 PM in response to Lance_Vital

Sounds like the GPU is failing. Did you run a AHT (Diagnostic) ?

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Answer 2

Lance_Vital Author

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Dec 10, 2013 3:56 PM in response to leroydouglas

I have not run AHT diagnostic. Is that an application available on the specific machine or a download?

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Answer 3

LowLuster

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Dec 10, 2013 4:06 PM in response to Lance_Vital

To run the AHT on your model at startup hold down the Option + d keys and keep them held down until you see a globe on the screen. It will say "Starting Internet Recovery" but the Apple hardware test will come up. If you are connecting to your internet router by Wifi only you will need the WiFi password. So either have that handy or connect your Mac to your router with an Ethernet cable, that is if your Mac has an Ethernet port. Most of the newer systems, Retina models, don't have that port.

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Answer 4

Lance_Vital Author

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Dec 11, 2013 3:04 PM in response to LowLuster

I have been able to run the AHT, but all it seems to be testing is the Memory even ran the extended testing. Does this tool actually test the Intel Graphics hardware?

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Answer 5

LowLuster

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Dec 11, 2013 4:24 PM in response to Lance_Vital

I'm not sure. That user need to take the system to an Apple store for proper evaluation. Something in the hardware isn't correct.

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Answer 6

Dec 11, 2013 5:05 PM in response to Lance_Vital

The Test is not definitive by any means.

But yes it can tell you if there is a problem with the video card the error would start something like this: 4YDC:

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Answer 7

Lance_Vital Author

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Dec 11, 2013 5:08 PM in response to leroydouglas

Thanks all. The machine would not fail while I was testing it and I ran the Extended test 3 different times. The user is heading back home and is going to take it to the Apple Store nearest him.

Thanks again.

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Answer 8

LowLuster

Level 6

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Dec 11, 2013 5:09 PM in response to Lance_Vital

You're welcome.

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