Macbook Air M1 (7 core GPU) - External Monitor Flickering

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Macbook Air M1 (7 core GPU) - External Monitor Flickering

Hi there,

I am using a USB C -> DisplayPort Cable (ver 1.2) to connect Dell 27" 4K (S2721Q) external monitor, but the problem is that the monitor flickers periodically every few seconds. This happens on any resolution I set on external monitor, i.e., scaling of 1920x1080 or 3840 x 2160 or anything in between.

The firmware on the Dell S2721Q is M2B103 and the macOS on MacBook Air M1 is Big Sur 11.3.

Does anyone faced this issue, any solution(s) available ?

Posted on Apr 27, 2021 7:07 AM

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Answer 1

MoonJ.

Community Specialist

Apr 28, 2021 10:52 AM in response to xafar

Hi xafar,

Thank you for using Apple Support Communities.

From your post, it seems that your MacBook Air is connected to an external display and experiencing flickering every few seconds. We want to help. You can follow the steps in this article that talks about getting help with external displays: Get help with video issues on external displays connected to your Mac - Apple Support

If you need further assistance with this after following those steps, you can Contact Apple for support and service - Apple Support

Best Regards!

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Answer 2

May 28, 2021 2:31 PM in response to xafar

https://www.dell.com/support/kbdoc/en-uk/000185689/flickering-or-blanking-video-issue-with-dell-s2721q-qs-monitors-when-connected-to-a-m1-macbook-or-mini-via-usb-c-to-dp-adapter

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Macbook Air M1 (7 core GPU) - External Monitor Flickering

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