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Jjk0901 Author

Level 1

20 points

Black screen with vertical lines

My Mac book prob suddenly went into a black screen with a few vertical lines on it yesterday as I was in a zoom meeting and I haven't been able to fix it. Help is much appreciated!!

MacBook Air 13″, macOS 10.14

Posted on Sep 10, 2020 6:15 AM

Top-ranking reply

HWTech

Level 9

60,200 points

Posted on Sep 10, 2020 7:50 PM

Try connecting an external display. You may need to enable Clamshell mode by closing the lid in order to get video onto the external display.

Try a forced power off by holding down the power button or performing an SMC reset.

If the external display is Ok, then your built-in display is defective. Otherwise you likely have a defective Logic Board. Both of these will require a repair, but at least with the former you can continue using the laptop with the external display until the laptop can be repaired.

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Black screen with vertical lines

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