You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Macbook Air M1. Black lines on screen when plugging usb-c devices.

Hi there. My M1 Macbook Air started to show black lines on screen (as you can see in the images attached). They disappear when I restart the computer or close session. I found that they appear every time I plug or unplug my usb-c monitor. Is there anything I can do? I understand there is no PRAM or SMC to reset in a M1 SoC, am I right?



MacBook Air (2020 or later)

Posted on Oct 2, 2021 7:38 AM

Reply

Similar questions

2 replies

Oct 2, 2021 1:15 PM in response to woodmeister50

Thank you for answering, woodmeister50. Since a restart or logout fixes the issue, adding or removing a display with the Mac off will not make it appear. This happens when I plug in the display (I think it happened when I connected my hub sometimes). It’s not an important thing but I’m afraid this could be a GPU or motherboard problem.

Macbook Air M1. Black lines on screen when plugging usb-c devices.

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.