Public bug reported:
Hardware: HP 255 15.6 inch G10 Notebook PC (AMD Rembrandt)
Subsystem ID: 103c:8b2f
Audio Coprocessor: AMD ACP6x (03:00.5)
Codec: Realtek ALC236
Issue: Internal digital microphone (DMIC) is not registered as a capture
device in ALSA (arecord -l). The drivers snd_pci_acp6x and
snd_soc_acp6x_mach load properly, but DMIC requires adding the DMI board
match (103c:8b2f) to sound/soc/amd/yc/acp6x-mach.c.
External analog mic via jack works fine.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.17.0-1030-oem 6.17.0-1030.30
ProcVersionSignature: Ubuntu 6.17.0-1030.30-oem 6.17.13
Uname: Linux 6.17.0-1030-oem x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: supfra 3317 F.... wireplumber
/dev/snd/controlC0: supfra 3317 F.... wireplumber
/dev/snd/seq: lightdm 2143 F.... pipewire
supfra 3313 F.... pipewire
CasperMD5CheckResult: pass
Date: Wed Aug 5 17:38:55 2026
InstallationDate: Installed on 2025-03-18 (505 days ago)
InstallationMedia: Ubuntu-MATE 24.04.2 LTS "Noble Numbat" - Release amd64
(20250318)
MachineType: Hewlett-Packard HP 255 15.6 inch G10 Notebook PC
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-1030-oem
root=UUID=74c82757-2013-460e-957e-f2c99a9b28e2 ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.17.0-1030-oem N/A
linux-backports-modules-6.17.0-1030-oem N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.27
SourcePackage: linux-oem-6.17
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/05/2024
dmi.bios.release: 15.12
dmi.bios.vendor: AMI
dmi.bios.version: F.12
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 8B2F
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 52.46
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 52.46
dmi.modalias:
dmi:bvnAMI:bvrF.12:bd06/05/2024:br15.12:efr52.46:svnHewlett-Packard:pnHP25515.6inchG10NotebookPC:pvr:rvnHewlett-Packard:rn8B2F:rvr52.46:cvnHewlett-Packard:ct10:cvrChassisVersion:skuB15J0PT#ACJ:
dmi.product.family: 103C_5336AN HP 200
dmi.product.name: HP 255 15.6 inch G10 Notebook PC
dmi.product.sku: B15J0PT#ACJ
dmi.sys.vendor: Hewlett-Packard
** Affects: linux-oem-6.17 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
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https://bugs.launchpad.net/bugs/2162899
Title:
[HP 255 G10] Internal DMIC not working - missing DMI quirk for
103c:8b2f in snd-soc-acp6x-mach
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