Today morning i turned my macbook on and i saw all the black area of screen has green lines and dots all over , can anybody tell me what causes it , and how to fix it, please anyone can help

plz help with my graphic problem as i noticed tthis morning all the black area of the screen turned into green, anyone help me? will be apriciated,
thanks in advance

clintonfrombirmingham wrote:
Which model do you have? If a mid-2010 15", there are known problems with the GPU and the logic board will be replaced free.
Clinton
The Mid 2010 15-inch MacBook Pro problems are related to kernel panics, so the GPU is still working. In the case of the OP, the GPU has stopped working completely, so his/her problem doesn't belong to the kernel panic problem, so the OP may have to pay. I may be wrong.
Also, the 10.8.4 update won't help as this is a hardware problem, but it's always good to keep OS X updated

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