You have been subscribed to a public bug:
Volume increasing or decreasing doesn't work.
I can only toggle sound on (= 100%) and off (= 0%).
What I found out is that the Master channel seems to have no effect for
volume adjustments, but the PCM channel does. If the sound is muted, PCM
is set to 0 and therefore the sound is toggled off, but when I increase
the sound a bit, PCM jumps straight to 100, causing the speakers to be
very load.
I have attached alsa-info output.
System environment:
Pop!_OS 19.10
Release: 19.10
Alsa-Version:
alsa-base: 1.0.25
Sound Card:
HDA-Intel
Codec: Realtek ALC285
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: eoan
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Volume either 0 or 100% on Lenovo X1 Carbon G7
https://bugs.launchpad.net/bugs/1853440
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