External monitor occasional no signal issue

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External monitor occasional no signal issue

Hey guys, so I got the new MacBook Air recently and I use it mostly as a desktop in clamshell mode. It. is hooked up to a TB dock and an external monitor (3440x1440 144hz) via a usb c to DP cable. At first the monitor was also connected to the dock but after I noticed the no signal issue I connected it directly to my MacBook.

Anyways, about the issue: Occasionally, when I try to wake the device or even plug it in to my desktop setup, the Mac will not recognize the monitor and when I try to reconnet everything sometimes it works sometimes it doesn't... I really haven't found a solid solution for it...

anyone has any advice for this topic?

Thanks !

MacBook Air 13″, macOS 11.2

Posted on Apr 27, 2021 3:45 AM

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Answer 1

i_rina

Community Specialist

Apr 28, 2021 9:29 AM in response to yonitubul

Hi yonitubul,

Thank you for using Apple Support Communities.

From your post, it seems that your MacBook Air is unable to detect your external display at times. 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

Have a great day!

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External monitor occasional no signal issue

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