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[Bug 2121991] Re: Symptom: only front stereo works, top bar speaker is silent, forcing pin overrides causes hard lock.

 

Thanks for this bug report. I added a salsa-ucm-conf bug task, hopefully
someone from OEM enablement will be able to look into this.

** Also affects: alsa-ucm-conf (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2121991

Title:
  Symptom: only front stereo works, top bar speaker is silent, forcing
  pin overrides causes hard lock.

Status in alsa-driver package in Ubuntu:
  New
Status in alsa-ucm-conf package in Ubuntu:
  New

Bug description:
  HP Envy (Realtek ALC285) – Top-bar speaker not working under Ubuntu
  24.04 (only front stereo works)

  Description

  On HP Envy laptops with the Realtek ALC285 codec, Ubuntu 24.04 (both
  GA and OEM kernels) only enables the two front stereo speakers. The
  additional “top-bar” speaker (tweeter) remains silent.

  pavucontrol only exposes stereo output.

  hdajackretask lists multiple pins under “Black Headphone, Left side”
  and “Internal Speaker (LFE/Back)”, but reassigning them to “Internal
  Speaker” causes audio stack crash and system freeze.

  This suggests the third speaker is connected via a vendor-specific
  DSP/amp path not currently handled by ALSA.

  Windows drivers initialize all 3 speakers correctly, confirming this
  is a routing/quirk issue, not hardware failure.

  Steps to Reproduce

  Install Ubuntu 24.04 (with linux-oem-24.04).

  Play audio.

  Observe that only the front speakers work; the top-bar speaker is
  silent.

  Attempting to override pins in hdajackretask (e.g., Pin ID 0x21) →
  immediate system freeze.

  Expected Behavior

  All three speakers (front + top-bar) should work out-of-the-box,
  providing the same sound profile as under Windows.

  Actual Behavior

  Only front stereo speakers produce sound; top-bar speaker remains
  disabled.

  System Information

  Laptop model: HP Envy (please add your exact model/year, e.g., HP Envy
  x360 13-agxxxx).

  Codec: Realtek ALC285

  Kernel tested: 6.14.0-29-generic and linux-oem-24.04

  ALSA tools: alsa-tools 1.2.11-1build2, hdajackretask

  Pulseaudio/Pipewire: default in Ubuntu 24.04

  Impact

  Significantly reduced audio quality and volume compared to Windows.

  Top-bar speaker inaccessible, limiting usability of built-in audio.

  Additional Notes

  Likely requires a new ALSA quirk for HP Envy models with ALC285 codec.

  Willing to test patches / provide codec dumps (alsa-info.sh).

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu7
  ProcVersionSignature: hostname 6.14.0-29.29~24.04.1-generic 6.14.8
  Uname: Linux 6.14.0-29-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  akshaj25   2694 F.... pipewire
                        akshaj25   2698 F.... wireplumber
   /dev/snd/seq:        akshaj25   2694 F.... pipewire
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Sep  3 18:16:13 2025
  InstallationDate: Installed on 2025-09-03 (1 days ago)
  InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64 (20250805.1)
  MachineType: HP HP ENVY Laptop 13-aq1xxx
  PackageArchitecture: all
  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: 11/24/2023
  dmi.bios.release: 15.22
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.22
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 86AD
  dmi.board.vendor: HP
  dmi.board.version: 83.18
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.chassis.version: Chassis Version
  dmi.ec.firmware.release: 83.18
  dmi.modalias: dmi:bvnInsyde:bvrF.22:bd11/24/2023:br15.22:efr83.18:svnHP:pnHPENVYLaptop13-aq1xxx:pvrType1ProductConfigId:rvnHP:rn86AD:rvr83.18:cvnHP:ct10:cvrChassisVersion:sku6UW77AV:
  dmi.product.family: 103C_5335KV HP Envy
  dmi.product.name: HP ENVY Laptop 13-aq1xxx
  dmi.product.sku: 6UW77AV
  dmi.product.version: Type1ProductConfigId
  dmi.sys.vendor: HP
  mtime.conffile..etc.modprobe.d.alsa-base.conf: 2025-09-03T17:56:51.139029

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