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M1 Mac mini not waking display after sleep

old thread, same problem. MacStudio M1, 32gb ram, 13.2 OS. i forgot about this b/c i don't shut down very often but 13.1 to 13.2 made me reboot. had to sit with black screen then 5min, pull USB-c out then plug it back in. Just like my M1 Mini, which i had before the Mac Studio.
 
Try in Terminal - 'sudo pmset -a autopoweroffdelay 86400'

This will push deep hibernation out to 24 hours as opposed to the default 4 hours (14400 is default). Works for me on my new Mac Mino M2 Pro.
 
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I finally fixed the issue on my Mac Mini M2 Pro - for me switching from a Thunderbolt to DisplayPort lead to a high quality HDMI 2 HDMI cable got the machine to wake up the monitor.
 
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dbrewood said:
Try in Terminal - 'sudo pmset -a autopoweroffdelay 86400'

This will push deep hibernation out to 24 hours as opposed to the default 4 hours (14400 is default). Works for me on my new Mac Mino M2 Pro.
Click to expand...
thank you for the info but this did not stop this issue from happening again
 
A pity that.
In the end on the new Mini I solved the problem by shifting from using a thunderbolt to DP adaptor to using a very high quality HDMI to HDMI cable. When using that solved the issue for me, that allowed me to back out all my 'fixes'.
 
This is utter crap from Apple... I'm having to use a 3rd party monitor because it's the only one that will work on my M1
(HDMI) It's okay but my preferred display just will not work. (Glass screen)
So now I'm nearly in a position to buy a cinema display but will have to keep going backward and forwards to the shop to find one that will work my machine?

Complete and utter bollocks!!!

Am I angry?

Also - still have the USB issue when waking.. ie unplug then plug back in,

This is amateurish considering the outlay.

Angry from Oxford,
 
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bhtwo said:
This is utter crap from Apple... I'm having to use a 3rd party monitor because it's the only one that will work on my M1
(HDMI) It's okay but my preferred display just will not work. (Glass screen)
So now I'm nearly in a position to buy a cinema display but will have to keep going backward and forwards to the shop to find one that will work my machine?

Complete and utter bollocks!!!

Am I angry?

Also - still have the USB issue when waking.. ie unplug then plug back in,

This is amateurish considering the outlay.

Angry from Oxford,
Click to expand...
i agree 100% with the issue vs cost comparison, this should be easy for them to fix. I'm less emotional, however. i never shut down my Mac Studio. i never shut down any mac since 2007. my trashcan ran for 8 years w/o ever shutting down. just a reboot for security updates. so this issue, although really annoying, is a 2-4 times a year issue for me.
 
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dbrewood said:
A pity that.
In the end on the new Mini I solved the problem by shifting from using a thunderbolt to DP adaptor to using a very high quality HDMI to HDMI cable. When using that solved the issue for me, that allowed me to back out all my 'fixes'.
Click to expand...
Would you please provide a link or some information on the HDMI cable that fixed the issue?
 
Alas I can't it was bought in a local department store if I recall. It was the only one that'd work reliably with the 4K Apple TV. So buy one that is at least 4K certified I guess.
 
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After having trouble with my curved Samsung monitor since two years I was so frustrated that I bought a new BenQ Display which works since the first day on the same cable as the Samsung before. No trouble. No issue that the display doesn’t switch on after standby. This is pretty sure an issue with some displays (chipsets)
 
gooimac said:
My M1 (8gb/256) Mac mini doesn't seem to want to wake my displays after its been sleeping. I have tried with 2 different displays with 2 different HDMI cables with the same thing occurring on each one. I am currently only using one at a time. I also noticed some pink squares/graphics glitches on the Big Sur boot/log in screen (with the coloured background, not the black and white boot up)

I am going to leave it with the display set to never sleep for now to see if anything is different after leaving it for a while.

Any one else having similar issues? I don't have a USB-C to HDMI or DisplayPort to try currently.
Click to expand...
What works is shortcut Alt-Cmd-Eject. After moving the mouse or press a key the screen will awake.
 
gooimac said:
My M1 (8gb/256) Mac mini doesn't seem to want to wake my displays after its been sleeping. I have tried with 2 different displays with 2 different HDMI cables with the same thing occurring on each one. I am currently only using one at a time. I also noticed some pink squares/graphics glitches on the Big Sur boot/log in screen (with the coloured background, not the black and white boot up)

I am going to leave it with the display set to never sleep for now to see if anything is different after leaving it for a while.

Any one else having similar issues? I don't have a USB-C to HDMI or DisplayPort to try currently.
Click to expand...
Use shortcut Alt-Cmd-Eject. After moving the mouse or press a key the screen will awake
 
DeHub said:
After having trouble with my curved Samsung monitor since two years I was so frustrated that I bought a new BenQ Display which works since the first day on the same cable as the Samsung before. No trouble. No issue that the display doesn’t switch on after standby. This is pretty sure an issue with some displays (chipsets)
Click to expand...

A bit of a surprise as I think that BenQ is a budget monitor while Samsung covers the whole range in pricing and features.

I just stick with the Dell Ultrasharp line and am very happy. I had problems at one point but they were due to cables. I'm picky about cable brands now.
 
pshufd said:
A bit of a surprise as I think that BenQ is a budget monitor while Samsung covers the whole range in pricing and features.

I just stick with the Dell Ultrasharp line and am very happy. I had problems at one point but they were due to cables. I'm picky about cable brands now.
Click to expand...
As said, this is specific to the monitor. I think some Samsung will work great. I had a Samsung U32R592CWU and this didn't work. The same monitor works on a Windows PC and a XBOX Series S without an issue...
 
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