Translucent blue line taking up a small portion of my screen.

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Translucent blue line taking up a small portion of my screen.

Hi, I have a new Macbook Air 2020 13" that has just had a small blue translucent line appear on its screen. It appeared today, at the start of the day there was no line but then later on it randomly appeared on the screen. I looked at other discussions similar to my problem and have tried the methods of restarting, resetting SMC and PRAM but it those did not seem to work. I was wondering if anyone had any ideas on how this might have happened and how I could fix this?

MacBook Air 13″, macOS 11.2

Posted on Jul 26, 2021 5:37 AM

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Answer 1

brianj123

Community Specialist

Jul 27, 2021 7:54 AM in response to shin214

Hello shin214,

Thanks for reaching out to the Apple Support Communities. We understand you are experiencing an issue on your Mac showing a blue line on the screen during start up. We are happy to help provide some guidance.

It sounds like you've done some good troubleshooting steps so far by resetting the SMC and NVRAM on the Mac. Have you also tried booting into safe mode to see if the issue persists there? If not, give that a try next to see if it is still there:

How to use safe mode on your Mac

If the issue persists, we'd like to ask some additional questions to get a better understanding if the issue.

Does this line appear on every screen you access on the Mac, or only on the start up screen?
When did you first notice this issue start? Was it after any sort of update or change to the Mac?

Keep us updated. We hope this information helps.

Cheers.

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Translucent blue line taking up a small portion of my screen.

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