- Is the front panel audio header properly connected to motherboard?
- Does your computer case have separate headphone and microphone jacks, or a single combo jack?
- If you have Windows or Linux, do headphone and microphone work there?
well, I tried connecting the front audio panel of my old PC case and it wasn't working. That means I should also have been able to fail plugging it correctly twice, that I cannot exclude tho

I will check again.
Yes, mic and headset, separated with icons.
I tried in win10 to go I used for the Intel ME FW, and plugging the headset did not change anything, but I really don't know Windows a lot, I just saw AudioHD in device manager but did not investigate too much.
I found something interesting:
Currently using line out for the speakers. If I connect the headphones to the
mic in (pink, bottom left) the name of the
first output interface changes to Headphones. That is the one I'm using (so related to line out) and obviously I cannot hear anything from the headphones.
If I connect the mic to the mic in port there's no signal in input. Neither in Line in.
Plugging the mic in c/sub, an input port changes name to microphone port.
So there has to be some mess in EFI.
I deleted the alcid arg (wasn't working anyway) and added 0d000000 as layout-id in device. I'll try alcid=13 and 14.
Are any third-party firewall or anti-virus applications installed?
I have LuLu. tried to quit it and exclude from running at login, also rebooting.
The problem is that disconnecting and reconnecting the cable from the network port, I'm able to get an IP, router IP and DNS, still internet is not working. Even ping does fail. I can see the connection on the router interface, everything seems ok.
I have enabled both USBWakeFixup.kext and its companion SSDT-USBW.aml. But this is optional. Either way is okay.
I will try enabling and disabling both.
I will check AudioHD port (again), and also power connection to the MB, even if I doubt anything would work if I did some mistake there.
As a last resort, tomorrow I'll try to CMOS reset and install Monterey from scratch on another disc. At least I will be able to use one of you EFI without any editing so to exclude that from the equation.