problem red vertical line

How to fix problem red vertical line on ten screen ?

iMac 27″, macOS 12.4

Posted on Jul 20, 2022 10:01 AM

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2 replies

Jul 20, 2022 10:19 AM in response to LouTou

This is likely a hardware failure, I would suspect the GPU is failing. Please take the computer to your local Apple Authorized Service Provider to be tested. Also, when posting please provide MUCH more complete information otherwise we have to guess. The information in the following link is good for first time posters:


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problem red vertical line

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