HDA Analyzer has a small bug caused by the misidentation of the code in
hda-guilib.py. The outcome of it is that Mute checkbox is never checked for
anything except pin widget regardless the actual amplifier value is. I came
across this bug while trying to make microphone on my Lenovo Y550P work
again after one of ALSA uprades, and although being a one-liner it cost me
one or two hours of scratching my head thinking why I'm unable to hear any
sound even with all relevant widgets unmuted.
git://git.alsa-project.org / alsa.git / commit