The one I knew doesn't work:
$sudo alsactl init
alsa-lib parser.c:242:(error_node) UCM is not supported for this HDA model (HDA Intel PCH at 0xa1114000 irq 134)
alsa-lib main.c:1405:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -6
Found hardware: "HDA-Intel" "Realtek Generic" "HDA:10ec0256,1025126a,00100002" "0x1025" "0x126a"
Hardware is initialized using a generic method