Public bug reported:
On my HP 15da0077tx laptop running Ubuntu 24.04 LTS (kernel
6.17.0-14-generic), the internal microphone does not work. The kernel
detects the codec (Realtek ALC236) and shows both Internal Mic=0x12 and
Mic=0x19 in dmesg, but PulseAudio/PipeWire always marks the internal mic
as "unplugged" and no audio is captured.
Steps tried:
- Verified with `arecord -l` (only one capture device shown).
- Boosted Internal Mic and Capture via amixer (`Internal Mic Boost`, `Capture
cap`).
- Tested recording with ALSA (`arecord`) and PulseAudio (`parecord`), always
silent.
- Tried multiple driver quirk models in `/etc/modprobe.d/alsa-base.conf`
(`alc236`, `alc269`, `alc256`, `dell-headset-multi`), no success.
- Reinstalled ALSA, PipeWire, PulseAudio, and updated kernel.
Expected behavior:
Internal microphone should be available and capture audio.
Actual behavior:
Internal microphone is detected but always silent/unplugged. External mic works
fine.
System info:
- Ubuntu 24.04 LTS Pro
- Kernel: 6.17.0-14-generic
- Codec: Realtek ALC236
- Laptop: HP 15da0077tx
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 6.17.0-14.14~24.04.1-generic 6.17.9
Uname: Linux 6.17.0-14-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Feb 17 17:16:08 2026
InstallationDate: Installed on 2026-02-14 (3 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
MachineType: HP HP Laptop 15-da0xxx
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: 08/20/2024
dmi.bios.release: 15.49
dmi.bios.vendor: Insyde
dmi.bios.version: F.49
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 84A7
dmi.board.vendor: HP
dmi.board.version: 80.50
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 80.50
dmi.modalias:
dmi:bvnInsyde:bvrF.49:bd08/20/2024:br15.49:efr80.50:svnHP:pnHPLaptop15-da0xxx:pvrType1ProductConfigId:rvnHP:rn84A7:rvr80.50:cvnHP:ct10:cvrChassisVersion:sku4TT02PA#ACJ:
dmi.product.family: 103C_5335KV HP Notebook
dmi.product.name: HP Laptop 15-da0xxx
dmi.product.sku: 4TT02PA#ACJ
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2026-02-17T16:54:41.321305
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2142013
Title:
Internal microphone not working on HP 15da0077tx (Realtek ALC236)
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