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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

Horizontal Lines/Display dies 15" 2012 Macbook


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jlefebvr

 
Member Since: Sep 22, 2013
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Attachment 19524Hey everybody,

My Macbook's display has been turning into horizontal lines lately, sometimes it also makes the screen split.
I've noticed that if I hit the laptop on the bottom, then it can vary the lines and/or make the screen split. When I restart it all goes back to normal.

I tried opening it up and unplugging/replugging the display cable.

It's a 2011/2012 15" Macbook Pro
2.2GHz Intel i7 "Sandbridge"

Any ideas?
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chscag

 
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Is the machine still under warranty or extended Apple Care? If it is, take it on in and let Apple diagnose it. It may be a loose cable from your logic board to the display area. There's more than one cable that can cause those symptoms. If not under warranty any longer, you can open it up once more but this time follow directions for all the cables as given at the ifixit site.

Go here: iFixit: The free repair manual
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jlefebvr

 
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Thanks, but it's out of warranty, and I tried pressing the other cables back in.

Thinking it could be the GPU...
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pigoo3

 
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Mac Specs: 13" MB 2.4ghz, 2gig ram, OS 10.7.5

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What happens if you plug an external monitor into it. Same thing...or no lines?

For the heck of it...you could also try an SMC reset:

http://support.apple.com/kb/ht3964

- Nick

- Too many "beachballs", read this: Beachballs
- Computer seems slower than it used to? Read this for some slow computer tips: Speedup
- Almost full hard drive? Some solutions. Out of Space
- Apple Battery Info. Battery
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jlefebvr

 
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I tried plugging it in when the lines were across the screen, and it didn't recognize the monitor :/
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Quote:
Originally Posted by jlefebvr View Post
I tried plugging it in when the lines were across the screen, and it didn't recognize the monitor :/
Try plugging in the external monitor...then restart the computer (with the external monitor plugged into it).

- Nick

- Too many "beachballs", read this: Beachballs
- Computer seems slower than it used to? Read this for some slow computer tips: Speedup
- Almost full hard drive? Some solutions. Out of Space
- Apple Battery Info. Battery
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