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[Victoria Kondratska <2127117@xxxxxxxxxxxxxxxxxx>]

Update: I tried updating to the latest kernel available (in my case,
6.17), and it didn't help. What do...

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https://bugs.launchpad.net/bugs/2127117

Title:
  [Asus Zenbook UX425QA_UM425QA] No codecs found for the internal sound
  card, resulting in a 'Dummy Output' device.

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  Dear Sirs or Madams,

  I am writing to tell you about an extremely devastating issue that has
  been bothering throughout these couple of weeks. I am reporting an
  issue where the internal audio hardware (speakers and headphone jack)
  is not detected on my ASUS laptop. The system consistently falls back
  to a "Dummy Output" device, and no sound is produced. I had it "fixed"
  a couple or times by a cold boot and installing a package with sudo
  apt install linux-oem-24.04, but it still returned to "Dummy Output"
  after a while.

  To provide system info:

  Laptop Model: ASUS Zenbook UX425QA

  Distribution: Ubuntu 24.04 (or based on it)

  Kernel Version Tested: 6.14.0-33-generic (also occurred on
  6.14.0-1013-oem)

  Hardware Info (from lspci -k):

  04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Renoir Radeon High Definition Audio Controller
      Kernel driver in use: snd_hda_intel
  04:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor
      Kernel driver in use: snd_rn_pci_acp3x
  04:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller
      Kernel driver in use: snd_hda_intel

  The primary issue seems to be that the snd_hda_intel driver fails to
  find the audio codec for the analog output device. The key error
  message in dmesg is:

  snd_hda_intel 0000:04:00.6: no codecs found!

  This is accompanied by a user-space error from WirePlumber, which
  fails to initialize the AMD Audio Co-Processor:

  wireplumber: SPA handle 'api.alsa.acp.device' could not be loaded; is it installed?
  wireplumber: Failed to create 'api.alsa.acp.device' device

  I have already taken many steps to resolve the issue, without success:

  - Updated the laptop's BIOS/UEFI to the newest version available from the ASUS support website.
  - Performed a full system update (apt update && apt upgrade).
  - Ensured the latest linux-firmware, sof-firmware, and alsa-ucm-conf packages are installed.
  - Tested both the OEM kernel and the newer generic HWE kernel provided by Ubuntu. The issue persists across all versions.
  - Removed any custom audio-related kernel boot parameters.

  The issue seems to be a driver-level incompatibility with this
  specific hardware implementation.

  I am happy to provide full dmesg logs, lspci -vvv output, or any other
  information required to help diagnose and resolve this bug.

  Thank you for your time and work on the Linux kernel.
  Sincerely,
  Vic (They/She)

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu7
  ProcVersionSignature: Ubuntu 6.14.0-33.33~24.04.1-generic 6.14.11
  Uname: Linux 6.14.0-33-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Oct  8 21:51:25 2025
  InstallationDate: Installed on 2025-09-22 (16 days ago)
  InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64 (20250805.1)
  MachineType: ASUSTeK COMPUTER INC. Zenbook UX425QA_UM425QA
  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
  Symptom: audio
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/18/2025
  dmi.bios.release: 5.19
  dmi.bios.vendor: American Megatrends International, LLC.
  dmi.bios.version: UX425QA.311
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX425QA
  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: 3.11
  dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrUX425QA.311:bd02/18/2025:br5.19:efr3.11:svnASUSTeKCOMPUTERINC.:pnZenbookUX425QA_UM425QA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX425QA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:
  dmi.product.family: Zenbook
  dmi.product.name: Zenbook UX425QA_UM425QA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  modified.conffile..etc.modprobe.d.alsa-base.conf:
   options snd-hda-intel single_cmd=1
   options snd-hda-intel probe_mask=1
   options snd-hda-intel model=basic
  mtime.conffile..etc.modprobe.d.alsa-base.conf: 2025-10-08T19:55:35.173860

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