Mac Desktop not waking up from sleep

I am running Big Sur 11.2.3 and out of the blue today my computer won't wake up with the keyboard or the mouse. I have to click the power button on the back of the monitor to wake it up. Anyone else having this issue.

iMac 27″, macOS 11.2

Posted on Jun 11, 2021 12:53 PM

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4 replies

Jul 2, 2021 8:43 PM in response to michele0130

What you are experiencing is easily fixed by going into settings, then energey saver and ticking the box that says 'Prevent computer from sleeping automatically when the display is turned off'. I noticed this new setting when I installed Big Sur. It basically means that unticked, when your display goes to sleep, so does your computer, causing you to have to press the power button to wake it. By ticking this box you will see that everything is fixed the way it should be. Good luck.

Jun 12, 2021 1:35 PM in response to michele0130

Hello michele0130,


Thanks for reaching out using Apple Support Communities!

We understand your Mac isn't waking up when you want it to, we certainly want to help resolve this.


Let's verify the settings are correct and you're taking these steps to Put your Mac to sleep or wake it

Are you using Apple accessories when this happens, or something else?

Does the same thing happen after a normal restart of the Mac?


We hope these steps can get the Mac waking as expected again.

Cheers!

Jun 14, 2021 3:47 PM in response to michele0130

Thanks michele0130,


Thanks for reaching out using Apple Support Communities!

Let's continue to work together to resolve this issue so you can wake from sleep with those accessories.

The next step will be to make sure you're using the latest macOS software. You can use these steps to Update macOS on Mac


Having the latest software installed could help resolve the issue to wake from sleep as expected again.

Cheers!

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Mac Desktop not waking up from sleep

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