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Bulldog1019 Author

Level 1

4 points

MacBook Pro screen flickering when monitor is connected

I have a 15.4" macbook pro vega20. When I plug my monitor into my computer, the screen on the macbookpro itself blinks. Any answers to why this is?

MacBook Pro 15”, macOS 10.15

Posted on Jul 15, 2020 6:53 AM

Top-ranking reply

Grant Bennet-Alder

Level 10

133,351 points

Posted on Jul 15, 2020 7:47 AM

If it blinks three times or less within five seconds and is done, that is a signal to you that an external display is connecting. It should be read as if the message" Attention, an External display has been recognized and is being enabled" was shown on the built-in display.

If something else, please describe the behavior more fully.

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MacBook Pro screen flickering when monitor is connected

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