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macrumors regular
Original poster
Sep 19, 2017
Washington, DC
I bought a 2020 MacBook Pro 13in in late june of last year. In october, I started noticing these weird lines on the screen when I was working. It was sudden (I blinked and they appeared). External monitor works fine. Any ideas?



macrumors newbie
Aug 6, 2018
did you run your macbook under stress and have heat built up? Many 2016-2018 Macbook Pros have the problem where the Display board with the t-con unit couldn’t withstand high heat and start to fail. My macbook included. I had to constantly keep my macbook cool to avoid horizontal lines.
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