debcrafters-packages team mailing list archive

[Daniel Letzeisen <2116321@xxxxxxxxxxxxxxxxxx>]

XPS 14-9440 needs at least a 6.9 kernel for the sound to work.

"Tested the snd_hda_intel.dmic_detect=0 kernel parameter."
Undo this. It's not needed and automatically breaks at least the microphone.

"Manually installed the latest sof-firmware binaries (v2.9)"
Undo this. Ubuntu's SOF firmware package has what you need:
sudo rm -rf /lib/firmware/intel/sof*
sudo apt install --reinstall firmware-sof-signed

Now you can install a newer kernel, either the -generic or -oem variant
sudo apt install linux-generic-hwe-24.04
OR
sudo apt install linux-oem-24.04b

-- 
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Debcrafters packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/2116321

Title:
  No sound on Dell XPS 14 (9440) - "Dummy Output" only

Status in alsa-driver package in Ubuntu:
  New

Bug description:
      Hello,
      I have a brand new Dell XPS 14 (model 9440) running Ubuntu 24.04 LTS. There is no audio output or input device detected, only a "Dummy Output" is available.

      The dmesg log shows the following error:
      sof-audio-pci-intel-mtl 0000:00:1f.3: SOF firmware and/or topology file not found.

      I have already tried the following steps without success:

          Updated the BIOS to the latest version from Dell's website.

          Installed the latest linux-oem-24.04 kernel.

          Manually installed the latest sof-firmware binaries (v2.9)
  from the official SOF project GitHub repository into /lib/firmware.

          Tested the snd_hda_intel.dmic_detect=0 kernel parameter.

      The problem persists after all these actions. It seems there is a
  kernel driver issue with the new Intel Meteor Lake audio hardware on
  this specific laptop model.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu7
  ProcVersionSignature: Ubuntu 6.8.0-1030.30-oem 6.8.12
  Uname: Linux 6.8.0-1030-oem x86_64
  ApportVersion: 2.28.1-0ubuntu3.7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jsanchez   2322 F.... wireplumber
   /dev/snd/seq:        jsanchez   2318 F.... pipewire
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Jul 10 13:46:10 2025
  InstallationDate: Installed on 2025-07-01 (9 days ago)
  InstallationMedia: Ubuntu 22.04.5 LTS "Jammy Jellyfish" - Release amd64 (20240911)
  MachineType: Dell Inc. XPS 14 9440
  PackageArchitecture: all
  ProcEnviron:
   LANG=es_ES.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: alsa-driver
  Symptom: audio
  UpgradeStatus: Upgraded to noble on 2025-07-04 (6 days ago)
  dmi.bios.date: 05/16/2025
  dmi.bios.release: 1.14
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.14.2
  dmi.board.name: 0G4MCV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.ec.firmware.release: 1.25
  dmi.modalias: dmi:bvnDellInc.:bvr1.14.2:bd05/16/2025:br1.14:efr1.25:svnDellInc.:pnXPS149440:pvr:rvnDellInc.:rn0G4MCV:rvrA00:cvnDellInc.:ct10:cvr:sku0C6B:
  dmi.product.family: XPS
  dmi.product.name: XPS 14 9440
  dmi.product.sku: 0C6B
  dmi.sys.vendor: Dell Inc.

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