Hello and welcome aboard.
I’ve had - and solved - the same identical problem back in 2023-02-23 No audio - pulsemixer Dummy Output after kernel update 6.1.12-1-lts: Module snd_hda_intel_codec not found in directory /lib/modules/6.1.12-1-lts
To cut it short: blame it on kernel(s) vers. 6.x.
Solution:
Get an UPDATED, regular kernel BUT still belonging to gen. 5.x: for instance
pacman -Ss linux-rt-lts linux-rt-lts-headers
extra/linux-rt-lts 5.15.92.57.realtime1-1
extra/linux-rt-lts-headers 5.15.92.57.realtime1-1
, hence:
sudo pacman -S linux-rt-lts linux-rt-lts-headers
sudo grub-install
sudo grub-mkconfig -o /boot/grub/grub.cfg
Reboot, and you’re done.
For the more details pls check The old thread
Or feel free to ask me.
Peace, Piero