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sea116 Author

Level 4

1,585 points

Kernel Panic / Display glitch on MacBook Air 2020

Hi there,

I was just watching a YouTube video in Safari with a few other tabs open. Out of nowhere, very thin bright green lines started appearing across my screen. They were pretty short and just appeared in little clumps. I had no idea what to do, so I closed my Macbook, waited a few seconds, then opened it and it's working fine now.

This happened a few times before, when I was using a 3D modelling program (Blender), and it usually preceded a kernel panic. I have not opened Blender for months so I'm guessing it wasn't at fault this time. Any suggestions on what to do?

Posted on Jun 9, 2021 11:51 AM

Top-ranking reply

i_rina

Community Specialist

Posted on Jun 10, 2021 12:11 PM

Hello sea116,

We understand that you're seeing lines across your screen at intermittent points. With it not actively happening, troubleshooting can be limited, and at this stage it could be hardware or software. The below article outlines steps to take regarding kernel panics if you've seen those alerts in the past:

If your Mac restarts and a message appears - Apple Support

On that same article, there's a link for steps to run a diagnostic test. So we do recommend doing that as well to determine if there's any hardware-based errors.

Thanks for using Apple Support Communities!

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Kernel Panic / Display glitch on MacBook Air 2020

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