Updated to Zorin 18 Core from 17 and sound has stopped working

As the title says, did work, now doesnt.

The VU meter dances to the music I'm playing, but no sound is made.

Nothing seems to be muted or low in alsamixer


I'm using the digital S/PDIF optical output to my hifi.

Interestingly, if i plug headphones into the line-out, I can hear the music playing. The Volume control still says Digital Output S/PDIF is the port, is that a red herring? Have ports become mismapped somehow?

What can I do?

Thanks

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So, You use this as active Output, yes? When You click on the Dropdown Menu, what Options do You have? And when You go to the Configuration Tab what do You get there?

Digital Output S/PDIF is the only Port/Output option.

On configuration there is:

Highlighted one is selected, was the Duplex mode above.
Tried most of the others, S/PDIF optical out is no longer working, unless my hifi died at exactly the same time I did the kernel upgrade. Will see if I can find another device with an optical in to test it, but obviously highly unlikely

You could boot in the older Kernel to check if it works then. To do that, choose on Start-Up on the GRUB Menu ''Advanced Options'' and choose there the older Kernel. When logged in check if the Audio works again.

On Your List I saw these 2 Options:
grafik

Does one of these maybe work?

So I'm very confused.

I've booted into the grub menu and i have

6.17
6.8 (not a typo for 18)

kernels available.

The audio works in neither. I haven't verified that it isn'y my HiFi, but it's surely not because the audio worked until the second i rebooted after being offered the 6.18 kernel, which I installed!

Am I going crazy?

Either way, what are my next steps to resolve this?

I've tried all the audio output configuration options and none work.

Thanks

And what Kernel did You had there? One of the above or the 6.18 Kernel?

I'm having the same issue I just upgraded audio was working fine in 17 then went to the latest Zorin 18, and the audio is not working the system is picking up the sound but nothing is coming from the computer same for headphones.

They screwed up the audio or something with this newest update, damn I should have stayed at 17...

Does secure boot is off in your BIOS ?
Does Your system run in Wayland or X11? You can check that with the Command
echo $XDG_SESSION_TYPE
And please when you have a problem create a topic and give us more infos about your system...

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Have you tried reverting to an older kernel through the advanced options grub tab?