Public bug reported:
Kubuntu 26.04 LTS on ASUS Vivobook S16 M3607GA has no internal speakers
or microphone. Only Radeon HDMI audio outputs are available.
Kernel: 7.0.0-29-generic
ALSA aplay -l only shows the Radeon HDMI devices. No internal ALSA sound
card is created.
The AMD Audio Coprocessor is detected:
03:00.5 Multimedia controller: AMD Audio Coprocessor [1022:15e2]
Kernel driver in use: snd_pci_ps
The Realtek RT721 SoundWire device is successfully enumerated:
sdw:0:1:025d:0721:01
The relevant modules including soundwire_amd, snd_pci_ps and
snd_soc_rt721_sdca are loaded, but the internal sound card is not
created.
There appears to be an upstream kernel fix for this exact standalone RT721
topology:
ASoC: amd: acp70: add standalone RT721 SoundWire machine
Upstream commit: d2dcd85f9e09
Could this fix please be considered for backporting to the Ubuntu 26.04
(Resolute) 7.0 kernel?
Expected result: an amd-soundwire ALSA card providing the internal
speakers/microphone.
Actual result: only Radeon HDMI audio devices are available.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-29-generic 7.0.0-29.29
ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12
Uname: Linux 7.0.0-29-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: rosta 1771 F.... wireplumber
/dev/snd/seq: rosta 1767 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sat Aug 8 20:30:58 2026
InstallationDate: Installed on 2026-08-08 (0 days ago)
InstallationMedia: Kubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423)
MachineType: ASUS Vivobook S16 M3607GA
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-29-generic
root=UUID=3fbd7ae3-9f83-45f4-9e79-8b0f9350bd78 ro quiet splash
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: 12/12/2025
dmi.bios.release: 5.35
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: M3607GA.302
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: M3607GA
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: 3.3
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrM3607GA.302:bd12/12/2025:br5.35:efr3.3:svnASUS:pnVivobookS16M3607GA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnM3607GA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:pfaVivobookS16:
dmi.product.family: Vivobook S16
dmi.product.name: Vivobook S16 M3607GA
dmi.product.version: 1.0
dmi.sys.vendor: ASUS
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2163094
Title:
ASUS Vivobook S16 M3607GA: internal audio missing with AMD ACP7.x /
RT721 SoundWire
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