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Weird grey lines across screen at startup

Why does my Macbook Pro 13-inch show weird grey lines across the top of the screen for a few minutes and then disappear?

MacBook Pro 13″, macOS 12.4

Posted on Sep 7, 2022 1:38 AM

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Level 8

49,116 points

Posted on Sep 7, 2022 2:41 AM

Hi,

Try to check your MacBook Pro with Apple Diagnostics if it reports something display related error.

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