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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)
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.
Power down the Mac when removing or attaching the monitor and see if that makes a difference.
Macbook Air M1. Black lines on screen when plugging usb-c devices.
