MacMini does not wake up from Sleep mode

[atlanticza]

My Mac mini running MacOS Ventura will not "awaken" from Sleep mode. Instead I have to force power off and reboot. I've disabled all Energy Saving options to no effect. (Perhaps I should mention that the Mac is linked via HDMI to a 48" LG C1 OLED monitor/TV?) Any solution would be most appreciated! Cheers.

 

[Fishrrman]

It may be that the DISPLAY is not "waking up" (instead of the Mini itself).

Next time this happens, don't reboot the Mini.
Instead, try disconnecting the display (tv) and re-connecting it.
I suggest you do this "break-make" at the tv end (to avoid putting strain on the Mini's HDMI port).
Does the display "come alive" again?

Can you tell us exactly WHAT you do to "wake up" the Mini?
Press a key?
Use the mouse?
Do something else?

Another suggestion:
DON'T put the Mini "to sleep".
Instead, put the display to sleep (with a screensaver) and leave the Mini "awake, but idling".
The difference in power consumption between "asleep" and "awake, but idling" is next-to-nothing.
But if the Mini doesn't sleep, then hopefully you won't have problems trying to "wake it up".

Another approach:
Have the Mini set NOT to sleep.
When you're going to be away for a little while, just TURN OFF the tv.

 

[atlanticza]

Thanks for your comprehensive reply. And it set me thinking. Being a LG C1 TV/Computer monitor, it has 4 HDMI inputs. I had the Mac mini plugged into the eArc-enabled HDMI input, and I assuming - at the moment - that the display with eArc active is interfering (or altering) the Sleep mode on the Mac. I have now switched to a 'normal' HDMI input to see if this will solve the issue. I'll report back. Thanks again.

 

[atlanticza]

It may be that the DISPLAY is not "waking up" (instead of the Mini itself).

Next time this happens, don't reboot the Mini.
Instead, try disconnecting the display (tv) and re-connecting it.
I suggest you do this "break-make" at the tv end (to avoid putting strain on the Mini's HDMI port).
Does the display "come alive" again?

Can you tell us exactly WHAT you do to "wake up" the Mini?
Press a key?
Use the mouse?
Do something else?

Another suggestion:
DON'T put the Mini "to sleep".
Instead, put the display to sleep (with a screensaver) and leave the Mini "awake, but idling".
The difference in power consumption between "asleep" and "awake, but idling" is next-to-nothing.
But if the Mini doesn't sleep, then hopefully you won't have problems trying to "wake it up".

Another approach:
Have the Mini set NOT to sleep.
When you're going to be away for a little while, just TURN OFF the tv.

Thanks for your comprehensive reply. And it set me thinking. Being a LG C1 TV/Computer monitor, it has 4 HDMI inputs. I had the Mac mini plugged into the eArc-enabled HDMI input, and I assuming - at the moment - that the display with eArc active is interfering (or altering) the Sleep mode on the Mac. I have now switched to a 'normal' HDMI input to see if this will solve the issue. I'll report back. Thanks again.

OK... switching to another HDMI port helped (a bit) but I did have to take out the HDMI connector on the monitor, then plugged it in back again to regain the connection to the Mac mini. Beforehand the Mac was unresponsive (and in deep Sleep without my intervention) despite the monitor being on. As for trying to waken it up at the time, I did press a key and the mouse to no effect. Only disconnecting the HDMi connection and reconnecting the cable did the Mac wake up. So it hasn't solved the issue completely.

 

[Fishrrman]

Something you could try with the tv (no promises):
Go into the menus on the tv.
Get to the menu that has "input choices".
Make sure it's set to the specific HDMI port you're using.
If that doesn't change anything...
... try setting the choice to "auto select", and see if THAT changes anything.

Again, no promises.

Does the tv by any chance have a displayport input?

 

[atlanticza]

Thanks for this. Yes Mac mini is set to a specific HDMI port via "input choices." As for the display port, the LG has everything but a DP input (which is a pity).