I have a 17" macbook pro late 2011 on macos high sierra and once i log in there is weird green and blue lines on the screen going sideways. Please help when i plus in a external monitor these lines still appear. I have tried reseting the pram and smc and that still does not fix it.

  • can you make a photo and upload it please?
    – X_841
    Jul 23 at 6:40
  • I can't really use the mouse with the weird lines Jul 23 at 13:14

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