alsa-project/alsa-ucm-conf pull request #56 was opened from J-Bu:
Using following environment on a Dell Latitude 3410 results in muted master channel and low output/input volume:
- alsa-libs 1.2.4 - alsa-ucm-conf 1.2.4 - alsa-topology-conf 1.2.4 - alsa-utils 1.2.4 - kernel 5.9.1 -> with commit 3dca35e applied on top of it - sof-bin v1.6
The propused changes fixes the problem for me. I don't know why but the given values are not 1:1 mapped to levels in alsamixer, please see attached iamges for alsamixer levels before and after the change, the alsamixer levels where captured after running "alsactl init":
before: 
after: 
Request URL : https://github.com/alsa-project/alsa-ucm-conf/pull/56 Patch URL : https://github.com/alsa-project/alsa-ucm-conf/pull/56.patch Repository URL: https://github.com/alsa-project/alsa-ucm-conf