Hundreds of horizontal lines on M2 MacBook Air screen

On my M2 MacBook Air (macOS Tahoe 26.0.1), there are hundreds of horizontal lines going across the screen. I believe this is a software bug, because it shows up in screenshots. Any way to fix this?


[Re-Titled by Moderator]

Original Title: MacBook Screen lines

MacBook Air, macOS 26.0

Posted on Oct 24, 2025 11:02 AM

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Hundreds of horizontal lines on M2 MacBook Air screen

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