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Macbook Pro Boot Problem

J

jasonizz

macrumors newbie
Original poster
Sep 28, 2013
6
0
Hi. I have a Mac Pro 2012 with Yosemite installed.

Recently on boot up, I get a screen full of crazy colours and lines (can supply a picture if required).

I adjust the screen either up or down slightly and it seems to right itself.

Could this be the result of a loose or faulty graphics card/cable?

I did an extended Apple Hardware Test (AHT) and it came back with no errors.

Thanks.
 
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