Purple Horizontal Lines Across Screen

Occasionally when I watch YouTube videos in full screen my MacBook freezes up and purple horizontal lines appear. Is this normal for 2015 12inch MacBooks? I have found the only way for the lines to go away is to force shut down my Mac. I was just wondering if anybody knew a way to fix this problem or if it has happened to others?

MacBook, macOS 11.0

Posted on Dec 1, 2020 9:45 AM

Reply
1 reply

Dec 8, 2020 9:33 AM in response to alenafromindianapolis

Hello alenafromindianapolis,


We understand that your Mac display isn't working as expected at times, specifically when viewing YouTube videos in full screen. We'd like to point you towards some resources that may help. Get started here: If your Mac display doesn’t look right


If the issue persists after following this advice we recommend looking into options to have your Mac serviced. You can find options in your region here: Get Support


We hope that this helps.


Take care!

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Purple Horizontal Lines Across Screen

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