Same issue here on X1 Yoga 4th gen. Seems alsa sees a bass speaker, but
it's stuck at zero and cannot be turned on or otherwise regulated.
Node 0x17 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out
Control: name="Bass Speaker Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x0000001c: OUT HP Detect
Pin Default 0x90170111: [Fixed] Speaker at Int N/A
Conn = Analog, Color = Unknown
DefAssociation = 0x1, Sequence = 0x1
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Power states: D0 D1 D2 D3 EPSS
Power: setting=D0, actual=D0
Connection: 3
0x02* 0x03 0x06
In-driver Connection: 1
0x02
Full alsa info http://alsa-
project.org/db/?f=aab3665eede4913070f67e7d8b1b57d17db2633c
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to alsa-ucm-conf in Ubuntu.
https://bugs.launchpad.net/bugs/1872108
Title:
Bass not on working Lenovo ThinkPad X1 Carbon 7th gen running focal
Status in alsa-ucm-conf package in Ubuntu:
Confirmed
Status in linux package in Ubuntu:
Confirmed
Bug description:
Related to
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1845677/comments/14
Audio works and the volume seems reasonable however the audio is
noticeably missing bass giving everything a high treble sound.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-ucm-conf 1.2.2-1
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
ApportVersion: 2.20.11-0ubuntu26
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 10 09:17:33 2020
Dependencies:
InstallationDate: Installed on 2020-04-08 (1 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
PackageArchitecture: all
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-ucm-conf
UpgradeStatus: No upgrade log present (probably fresh install)
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu26
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Dependencies:
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-04-08 (1 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
Package: linux
PackageArchitecture: all
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Tags: focal
Uname: Linux 5.4.0-21-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
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