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MacBook screen turns of suddenly and randomly, ...

I am using MacOS with MacBook Pro 2016 (13-inch)

Recently, I have upgraded my laptop to High-Sierra.

After upgrading, I found that the laptop monitor randomly turns off when idling. I mean, when any human interaction (like from keyboard or mouse) is not present.

The annoying thing is that sometimes even only after 5 seconds doing nothing with keyboard or mouse, the monitor turns off itself and go to 'lock' screen.

For example, watching Youtube for about 10 seconds and monitor go black. but it's random that sometimes more than 10 minutes go nothing.

Important thing is that I have tried many options to manage this problem.

These are what I have tried:

1. turn off/on screen saver with various time settings.
2. Energy saving and changed the slide bar for many settings.
3. reset NVRAM
4. used third-party app like Owly.

Is there any other option to solve this problem? Thank you.

最后更新：2017-10-07 14:30:22

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