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saintchung Author

Level 1

4 points

Display problem - shows vertical black bar at all time. My MacOS is Big Sur 11.1

see attached screen shot.

Posted on Jan 21, 2021 10:36 PM

Top-ranking reply

MrHoffman

Community+ 2024

Level 10

126,449 points

Posted on Jan 21, 2021 10:58 PM

No screen shot was attached.

Boot into Safe Mode and try again. That can clear up some issues. Failing that, visual artifacts on an internal display are usually hardware problems and you’ll want to contact the folks at Apple Support and discuss your repair options: contact Apple Support to get more help. On an external display, there can be some other causes of display artifacts.

How to use safe mode on your Mac - Apple Support

Get help with video issues on external displays connected to your Mac - Apple Support

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Display problem - shows vertical black bar at all time. My MacOS is Big Sur 11.1

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