Display keeps turning off after 30 seconds no matter what the settings say.

I have my Mac mini connected to two monitors via USB-C cables. Regardless of the settings under Lock Screen, after I lock the computer, 30 seconds later the displays turn off and (I guess) the Mac goes to sleep. Is this a bug or am I missing something?


Mac mini, macOS 14.0

Posted on Oct 5, 2023 3:06 PM

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Posted on Oct 6, 2023 8:42 AM

Sorry, the differences is that those screenshots are for a laptop and not a desktop Mac.


Try adjusting your "Turn display off when inactive" setting up to 20 or 30 minutes to see if that helps.



Also do your external displays have a standby sleep timers in their On Screen Menu settings?

If they do, then you may need to adjust those standby or sleep timers to never.

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Display keeps turning off after 30 seconds no matter what the settings say.

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