Red lines on display where black should be.
My display has red artifacting where the darkest blacks should be.
When I hook up to external display there is no lines, everything looks as it should. If I shut the computer down for the night, when I first start it again, the display is fine but within minutes the lines are back.
From what I've read online, because the problem doesn't appear on external displays, it likely isn't the logic board.
I just opened it up and saw no apparent damage to the display cable connection to the logic board. I took apart the display and removed the display cable and could see no physical damage to that, either. The cable is wrapped in tape, however.
Is it possible that it's a bad display cable and only that needs to be replaced?
I did drop the computer about a year ago but haven't had any problems until this started a few weeks ago.
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