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User profile for user: lxsdnll
lxsdnll Author
User level: Level 1
6 points

Purple and green lines on MacBook screen

What does it mean when my MacBook periodically flashes vertical purple and green lines? It's been happening for the past two days. The screen is not always bent at the same angle when this happens.

Posted on Oct 15, 2021 8:30 AM

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User profile for user: Tesserax
Tesserax
User level: Level 10
153,420 points

Oct 15, 2021 8:59 AM in response to lxsdnll

This could be one of three potential reasons:

  1. The notebook's display is faulty.
  2. The notebook's logic board is faulty.
  3. The display cable between the two has become worn ... regardless of the angle of the display.


One thing you can try to see if it help is to reset the notebook's SMC. To do so, see the following support article:

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Purple and green lines on MacBook screen

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