Public bug reported:
speakers silent while HDMI, Bluetooth and headphone jack work; audio
worked under Windows; subsystem ID 0x10433701; dmesg showing
speaker_outs=0 with the generic driver; mixer unmuted with Auto-Mute
disabled; and the workarounds that failed.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: alsa-base 1.0.25+dfsg-0ubuntu9
ProcVersionSignature: Ubuntu 7.0.0-31.31-generic 7.0.14
Uname: Linux 7.0.0-31-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ajit 4051 F.... pipewire
ajit 4064 F.... wireplumber
/dev/snd/seq: ajit 4051 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Sep 10 21:42:10 2026
InstallationDate: Installed on 2026-09-06 (4 days ago)
InstallationMedia: Ubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64
(20260826)
MachineType: ASUS ASUS EXPERTBOOK P5406CCA
PackageArchitecture: all
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: alsa-driver
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/20/2026
dmi.bios.release: 5.32
dmi.bios.vendor: ASUSTeK COMPUTER INC. (Licensed by AMI, LLC.)
dmi.bios.version: P5406CCA.203
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: P5406CCA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.ec.firmware.release: 2.11
dmi.modalias:
dmi:bvnASUSTeKCOMPUTERINC.(LicensedbyAMI,LLC.):bvrP5406CCA.203:bd03/20/2026:br5.32:efr2.11:svnASUS:pnASUSEXPERTBOOKP5406CCA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnP5406CCA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:pfaASUSEXPERTBOOK:
dmi.product.family: ASUS EXPERTBOOK
dmi.product.name: ASUS EXPERTBOOK P5406CCA
dmi.product.version: 1.0
dmi.sys.vendor: ASUS
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2166998
Title:
No sound from internal speakers on ASUS ExpertBook P5406CCA (ALC294,
subsystem 0x10433701)
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