[arch-proaudio] No sound on kernel 5.10.16 with a HDA Intel PCH card

[tasos tsesmetzis]

Dear list members,
After upgrading to kernel 5.10.16, my sound card (HDA Intel PCH Realtek
ALC892) stopped sending output to speakers and headphones. Audio files
seemed to play.

By downgrading to my latest kernel 5.9.10, sound output worked fine. In
both kernel versions, alsa package versions where the same. Also, the card
driver snd_hda_intel was installed.

Could you, please, share a couple of ideas on where to search for a
solution?
Thank you