Mac mini M1 Monterey 12.2 HDMI port doesn't wake from sleep

For some the display wake issue started back in Catalina or Big Sur, for others it just started in Monterey.

Test the following Energy Saver settings to see if that helps.

You can also inform Apple, at > https://www.apple.com/feedback/macmini.html

The consensus I have read is do not put your Mac Mini to sleep. Open System Preferences > Energy Saver and uncheck everything while placing the Slider to Never. You can simply turn off the monitor or shut down the system. See screenshot:

bobcollard wrote:

I have run mine without using "Prevent your mac from automatically sleeping when display is off" since I bought it. During the day I turn off the monitor, it has always turned back on with the Mac Mini running as it should. I think you have said this before, I wonder where you get your information?

Hi Bob, are you running a single or dual displays. I'm asking, because the OP and others are having issues where only one display in a dual display setup will wake or is slow to wake from Computer Sleep.

Very little, the displays use far more power than the idling Mac Mini. Generally I just let the displays turn off/sleep with the timer after 10 minutes and then manually sleep the computer from the dropdown menu each night.

If you have a problem with waking in the morning, then you may want/need to just shutdown at the end of each day and startup in the morning.

I have run mine without using "Prevent your mac from automatically sleeping when display is off" since I bought it. During the day I turn off the monitor, it has always turned back on with the Mac Mini running as it should. I think you have said this before, I wonder where you get your information?

One display on HDMI a 24" Sceptre HD monitor running at 75Hz.. Late 2014 Mac Mini, with 512GB NVMe startup and 512GB SSD internal running Time Machine. One external 512GB SSB as backup. USB mouse and keyboard, a Bluray, CD and DVD external player. One four port USB-3 hub with a 110volt powered Epson printer and a 110volt powered 2TB Maxel HD for Archives. Bluetooth running my Phonac Compilot II for connection to my hearing aids receiver. Everything works.

This is incorrect, Prevent must be checked.

Alright, if it works for you 😁👍.

I was answering den.thed question.

Sorry Bob. I was making a point, more than asking a question.

The point was, that MJ has an M1 Mac Mini with dual displays, which is a totally different beast than your 2014 with a single display.

I missed the last sentence with the display port on the USB-C connector. Having problem with sleep was my thoughts and it happened to other people with older Mac Minis too. Point taken.