Public bug reported:

In standard Ubuntu volume settings subwoofer level is alwas set to zero and i 
cant change it
if i run pavucontrol and set separate levels for each channel it works, sound 
is working, but if i open ubuntu sound settings and touch subwoofer level 
control then level is instantly set to zero again
once i was unable to change subwoofer level in pavucontrol while ubuntu sound 
settings is opened. after it is closed i can change voluve level of sub

before I install pavucontrol front speaker was very quiet nearly mute

also in test speakers there is no icon on subwoofer button

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.3.0-52.46-generic 5.3.18
Uname: Linux 5.3.0-52-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu8.8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri May  8 11:00:18 2020
InstallationDate: Installed on 2018-03-04 (795 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180228)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Dell USB3.0 Dock - Dell USB3.0 Dock
Symptom_PulseAudioLog:
 мая 08 10:26:20 tmpuser-EP43-UD3L dbus-daemon[1168]: [system] Activating via 
systemd: service name='org.freedesktop.RealtimeKit1' 
unit='rtkit-daemon.service' requested by ':1.36' (uid=119 pid=1422 
comm="/usr/bin/pulseaudio --daemonize=no " label="unconfined")
 мая 08 10:26:27 tmpuser-EP43-UD3L dbus-daemon[1168]: [system] Activating via 
systemd: service name='org.bluez' unit='dbus-org.bluez.service' requested by 
':1.135' (uid=119 pid=1422 comm="/usr/bin/pulseaudio --daemonize=no " 
label="unconfined")
Symptom_Type: Volume slider, or mixer problems
Title: [HDA-Intel - HDA Intel, playback] volume slider problem
UpgradeStatus: Upgraded to eoan on 2019-11-07 (183 days ago)
dmi.bios.date: 04/16/2009
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F4
dmi.board.name: EP43-UD3L
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: 
dmi:bvnAwardSoftwareInternational,Inc.:bvrF4:bd04/16/2009:svnGigabyteTechnologyCo.,Ltd.:pnEP43-UD3L:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEP43-UD3L:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: EP43-UD3L
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

** Affects: ubuntu
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug eoan

** Attachment added: "Снимок экрана от 2020-05-08 11-59-48.png"
   
https://bugs.launchpad.net/bugs/1877540/+attachment/5368223/+files/%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%20%D0%BE%D1%82%202020-05-08%2011-59-48.png

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https://bugs.launchpad.net/bugs/1877540

Title:
  [HDA-Intel - HDA Intel, playback] volume slider problem for subwoofer

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