I have a Horizontal Grainy Screen in my Mac Book Pro

Question

Level 1

12 points

I have a Horizontal Grainy Screen in my Mac Book Pro

I have been using my MacBook Pro (early 2014) over 2 years now and suddenly I'm having problems.

I updated my mac to OS Sierra latest by formatting the Mac completely, and after using it for a week, the problem started to appear. So I formatted again and the problem didn't occur for about a month and suddenly yesterday, when I switched on my macbook, the problem started again.

This problem never occured when the MacBook is in recovery mode.

Has any one else encountered this kind of problem before ?

How can I solve this problem ?

Will it cost too much to solve this problem ?

Posted on Aug 9, 2017 12:34 AM

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Answer 1

kaz-k

Level 9

50,334 points

Aug 9, 2017 12:59 AM in response to RavaNar

Hi,

Resetting SMC could solve the problem, though you'd better make Genius Bar appointment or take your MacBook Pro to Apple Authorized Service Provider to show them your screen.

Reset the System Management Controller (SMC) on your Mac - Apple Support

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Answer 2

RavaNar Author

Level 1

12 points

Aug 10, 2017 9:45 PM in response to kaz-k

I didn't try your method but the problem was not there anymore. and I don't how!

But I did try resetting the SMC , but is there any indicator or alert to confirm that the reset is done ?

And I'm sure that this problem may arise again as it had occurred many times before.

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