Public bug reported:
SoundWire subsystem detects internal endpoints cleanly as "Speakers -
sof-soundwire". Userspace audio mixers fluctuate dynamically showing
active playback, but the physical internal speaker amplifiers remain
completely silent. The onboard headphone jack (HDA) works flawlessly.
System is running Ubuntu 26.04 with kernel 7.0.0-generic.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-27-generic 7.0.0-27.27
ProcVersionSignature: Ubuntu 7.0.0-27.27-generic 7.0.6
Uname: Linux 7.0.0-27-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: fpm 4351 F.... wireplumber
/dev/snd/seq: fpm 4331 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Jul 4 19:06:12 2026
InstallationDate: Installed on 2026-07-04 (0 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
MachineType: Micro-Star International Co., Ltd. Prestige 16 AI+ C3MTG
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 xedrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-27-generic
root=UUID=51afb7b2-3a6b-47e2-bef2-80c2eea73664 ro quiet splash
xe.force_probe=b080 xe.enable_psr=0
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/25/2026
dmi.bios.release: 1.21
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: E2622IMS.115
dmi.board.asset.tag: Default string
dmi.board.name: MS-2622
dmi.board.vendor: Micro-Star International Co., Ltd.
dmi.board.version: REV:1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Micro-Star International Co., Ltd.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrE2622IMS.115:bd03/25/2026:br1.21:svnMicro-StarInternationalCo.,Ltd.:pnPrestige16AI+C3MTG:pvrREV1.0:rvnMicro-StarInternationalCo.,Ltd.:rnMS-2622:rvrREV1.0:cvnMicro-StarInternationalCo.,Ltd.:ct10:cvrN/A:sku2622.1:pfaPrestige:
dmi.product.family: Prestige
dmi.product.name: Prestige 16 AI+ C3MTG
dmi.product.sku: 2622.1
dmi.product.version: REV:1.0
dmi.sys.vendor: Micro-Star International Co., Ltd.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2159581
Title:
Audio regression: No internal speaker sound over sof-soundwire
(headphone jack works) on Intel Panther Lake layout
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