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dyKnot Author

Level 1

4 points

macbook not waking up without external device

Usually I use macbook with external monitors. Sometimes, when I disconnect it from external monitor, and open it up later without any external device connected, it just won't wake up. Screen is black, keyboard is dead, touchbar is dead, power button is not working.

If I plug in power adapter, it makes "charging" sound. Sometimes I even get chat sound notification so apparently, mac is not totally asleep. Only thing that can wake it up in that case, is connecting it to external device (usually external monitor, in rare cases plugging in USB drive works). If I am away, I can only wait for it to lose all power and shuts down completely, until I can use it again.

I use MacBook Pro (13-inch, 2020) OS Big sur, but it happened in High sierra too.

MacBook Pro 13″, macOS 11.0

Posted on Jan 3, 2021 7:33 AM

Top-ranking reply

HWTech

Level 9

60,542 points

Posted on Jan 3, 2021 7:42 PM

It sounds like you have a bad display assembly that will need to be replaced. Have Apple or an Apple Authorized Service Provider examine the laptop and provide you with an estimate for repair.

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macbook not waking up without external device

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