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FField1989 Author

Level 1

8 points

Macbook Air Screen - horizontal flicker/glitch

I got a new MacBook Air (2020) three days ago and I keep seeing a horizontal flicker across the screen, about 1/3 of the way up. It's very quick, but looks jagged and about 0.5cm thick with a green tinge. It lasts about a second and I haven't been able to catch any photo etc. evidence. Once I was playing a game, so thought it could be a graphics issue, but it happened again this evening just while I was browsing the web.

I've turned off autobrightness and True Tone and it's still happened.

I've only seen it a few times, but this is concerning on a new machine.

Any ideas gratefully received.

MacBook Air 13″, macOS 10.15

Posted on Sep 25, 2020 2:20 PM

Top-ranking reply

Axel Foley

Level 10

149,616 points

Posted on Sep 27, 2020 10:05 PM

Your MacBook Air 2020 is still under warranty and you can take advantage of it and send it back to the store if you want however you may want to try some basic troubleshooting techniques and see whether that resolves things.

Reset SMC by following the directions applicable to your MacBook here ➔ How to Reset SMC. If that does not solve things then-
Reset NVRAM/PRAM by following the directions applicable to your MacBook here ➔ How to Reset NVRAM/PRAM. If that does not solve things then-
Enter ➔ Safe Mode and see if the screen issue still exists in Safe mode. Log out of Safe Mode and then reboot computer. If that does not solve things then-
Finally if none of the above works then you can enter ➔ macOS Recovery Mode and reinstall the macOS and see if that solves it.

Axel F.

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Macbook Air Screen - horizontal flicker/glitch

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