Mac Mini (2018), MacOS Ventura; HDMI display has no signal after sleep - Reboot required :(

Update:

Still waiting for the shorter 1m HDMI cable.

But the USB-C to HDMI cable has arrived few days ago, and with this setup I have not yet seen the problem again. - Hence, it still seems to me to be related to the MacMini's HDMI port.

Unfortunately this eats up one of the USB-/Thunderbolt-ports, while the HDMI port is now unused.

Update2:

The short HDMI cable does not change the situation. With the USB-C to HDMI cable I have had no wake-up issues so far, while the HDMI-Port on the MacMini seems to have issues waking up the screen reliably.

One more thing that might be useful to others:

This (=> "Never" for display sleep) seems to work well using the USB-C to HDMI cable, but with the HDMI-to-HDMI cable (obviously plugged into the HDMI port of the MacMini) this does not reliably work.

Seems I need to stick with the USB-C to HDMI cable now, quite annoying, but better than doing a reboot every day.

Hi, thanks for the reply.

I do not put it to sleep deliberately. Over night it seems to go to sleep on its own.

How can I fully disable Sleep? I have it apparently already set as suggested in your link:

I also checked my current Energy Settings, which look(ed) like this (I tried already PowerNap on and off, seems to make no difference):

Anyway, I changed it now as suggested to this:

And last but not least, in the display settings I disabled "put monitor to sleep" already:

But also this did not seem to improve the situation.... :(

Since Ventura the appearance settings have significantly changed.

Anything else I could check/change?

OK, I shall buy a shorter cable to give it a shot. Even tough I have doubts this will change anything.

However, it was all working fine with Catalina, but since the update to Ventura this really keeps bugging me. The TV has been updated, and there is nothing I had changed recently which could justify this is happening now (with Ventura). Also in this light I do not really see how this could be a Samsung issue. (Besides, I did already check all settings on the TV, i.e. looking whether theres anything that could be related.

Besides, searching on the web reveals there are others with similar issues:

https://discussions.apple.com/thread/254075041

Perhaps - to test it - I will buy also a USB-C => HDMI cable, as a monitor on the USB-C/Thunderbolt seems to work. However, this would just be a workaround as it would take away one of the USB-Ports I need for other things unfortunately.

Well, "Fixes" that render a standard HDMI device into this state, are rather a "bug" than a "bugfix" in my universe.

Would not be surprised if Apple started "to create problems with Samsung HW" deliberately, given the situation between the two... Apple have developed an ever growing tendency to lock their users into their universe and ignoring certain issued of their users.

Anyhow, cables have been ordered (one 1m HDMI-HDMI, and one USB-C/Thunderbolt-HDMI cable, both are high quality HDMI 2.0 cables from Lindy). Will see if that helps, worth a shot, even though I am having doubts. Will report back once they have arrived.

I have tried various high-quality HMDI cables. The one currently connected is 1.5m long.

I use the TV as Monitor in the living room because the Mini is being used just like a normal computer. eMails, mostly Web-Browsing, scripting with Python (DIY Homeautomation), shell vor remote access to Linux computers, and also some streaming, so the later is just one use-case. A regular Monitor would just no work in this case, as it would be way too small...

Apple TV is a completely different use-case and not what I need.

I do not agree. With the older versions of MacOS this never was an issue.

Besides, I am not using any "dongle", just a simple USB-C to HDMI cable. (And, as far as I understand, the USB-C is just the connector, which carries also the HDMI signal.)

Apart from that, the HDMI-End of the two cables is in both cases plugged into the exact same HDMI port of the TV. So, to me this is clearly related to the HDMI-Port of the MacMini, as the Problem exists only when the MacMinis HDMI Port is used.