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Model A1297 Unibody: Early 2009, Mid 2009, Mid 2010, Early 2011 & Late 2011

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Red and Green lines on MacBook Pro Display

Good evening everybody. I've got a issue with a Mid 2009 Macbook Pro 5,2 and was hoping that some of you that have a lot more board level experience could give me some suggestions. About a 2 week ago the screen has begun having vertical lines on the display, red for where the white should be and green for black. There was no damage or spills to the computer and this only occurs after 5-10 minutes max of operating. Somethings so far I've tried....

  • Problem persist during safe boot.
  • Problem does not occur or go away while moving the clamshell through the range of motion
  • No overheating- Runs great
  • Apple hardware test and ASD indicate no problems
  • LVDS cable is seated appropriately and does not affect display issues.
  • No obvious damage to the board on either side

So here is the weird thing. If I press on the left speaker, in the area of the USB ports the problem will go away. Let go and the lines come back. I was wondering if there is a short in the board that runs behind or under this area. I don't have a schematic to check and not that i would be able to tell anyway. Well thanks in advance for the help!!!!

Billy M.

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It sounds like the LCD cable, although seated properly, has been damaged.

The cable is very affordable! It's about $15-30. To replace the cable you would have to remove the glass on the front of your display with a heat gun and a razor, undo the screws holding down the LCD itself, Slide off the black clutch cover, slide the screen up and out to expose the cable, disconnect the old cable, reattach the new one, and reverse the procedure.

I am on my iPhone right now, so I can't really paste the instructions for my fix it, but if you search for a1297-2009 LVDS cable , you'll get a nice detailed description on how to replace it.

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Thank you for your help. Although I have already removed the bottom cover and while the Macbook is on, physically manipulated the LVDS cable, while observing the screen and it had no impact, neither did manipulating the clamshell which is what I would think causes the most cable damage over time.. That is why pushing down on the chasis so far away from that connection is confusing.

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Thank you for the clarification; a lot of the guides refer to the Power button as the left side of the mac.

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