https://bugs.freedesktop.org/show_bug.cgi?id=94357
--- Comment #36 from Raymond <[email protected]> ---
can you post pulseaudio verbose log ?
any warning message when PCM Volume controls have no dB info
you need recompile alsa driver to produce debug output to find out those two
PCM Volume control belong to which UnitID
bDescriptorSubtype 4 (MIXER_UNIT)
bUnitID 10
bNrInPins 3
baSourceID( 0) 1 USB Streaming
baSourceID( 1) 7 Feature Unit 8 Feature Unit 2 Microphone
baSourceID( 2) 19 Feature Unit 15 Line Connector
bDescriptorSubtype 5 (SELECTOR_UNIT)
bUnitID 14
bNrInPins 4
baSource( 0) 9 Feature Unit 8 Feature Unit 2 Microphone
baSource( 1) 18 Feature Unit 15 Line Connector
baSource( 2) 26 Feature Unit 25 Analog Unit
baSource( 3) 17 Feature Unit 16 SPDIF Interface
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