No sound card detected on the Dell xps 16 2024 (9640)

[Moritz]

The sound card is not detected on the Dell XPS 16 2024 (9640). A Cirrus Logic CS42L43 card is used which apparently got support in Linux 6.6

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.phoronix.com/forums/forum/software/general-linux-open-source/1408193-linux-6-6-lands-support-for-the-cirrus-logic-cs42l43-audio-codec&ved=2ahUKEwiukq-ZroaFAxUWhf0HHe-jCngQFnoECA8QAQ&usg=AOvVaw3VW5hROJFzdJPUaIX-3igC

https://www.reddit.com/r/DellXPS/comments/1ax1i4t/support_for_xps_16_9640_documentation/

No LSB modules are available.
Description: Ubuntu Noble Numbat (development branch)
Release: 24.04

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 6.8.0-11.11-generic 6.8.0-rc4
Uname: Linux 6.8.0-11-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.28.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 21 23:00:06 2024
InstallationDate: Installed on 2024-03-19 (2 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240319)
MachineType: Dell Inc. XPS 16 9640
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: alsa-driver
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/15/2024
dmi.bios.release: 1.1
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.1.0
dmi.board.name: 0YFT36
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.ec.firmware.release: 1.2
dmi.modalias: dmi:bvnDellInc.:bvr1.1.0:bd01/15/2024:br1.1:efr1.2:svnDellInc.:pnXPS169640:pvr:rvnDellInc.:rn0YFT36:rvrA00:cvnDellInc.:ct10:cvr:sku0C62:
dmi.product.family: XPS
dmi.product.name: XPS 16 9640
dmi.product.sku: 0C62
dmi.sys.vendor: Dell Inc.

[Moritz (moritz89)]

During boot, dmesg reports that the intel/sof-ipc4/mtl/sof-mtl.ri and intel/sof-ace-tplg/sof-mtl-rt711.tplg files can not be found. However, the corresponding files are there but packaged with zst file endings.

sof-audio-pci-intel-mtl 0000:00:1f.3: use msi interrupt mode
sof-audio-pci-intel-mtl 0000:00:1f.3: DMICs detected in NHLT tables: 0
sof-audio-pci-intel-mtl 0000:00:1f.3: hda codecs found, mask 4
sof-audio-pci-intel-mtl 0000:00:1f.3: SOF firmware and/or topology file not found.
sof-audio-pci-intel-mtl 0000:00:1f.3: Supported default profiles
sof-audio-pci-intel-mtl 0000:00:1f.3: - ipc type 1 (Requested):
sof-audio-pci-intel-mtl 0000:00:1f.3: Firmware file: intel/sof-ipc4/mtl/sof-mtl.ri
sof-audio-pci-intel-mtl 0000:00:1f.3: Topology file: intel/sof-ace-tplg/sof-mtl-rt711.tplg
sof-audio-pci-intel-mtl 0000:00:1f.3: Check if you have 'sof-firmware' package installed.
sof-audio-pci-intel-mtl 0000:00:1f.3: Optionally it can be manually downloaded from:
sof-audio-pci-intel-mtl 0000:00:1f.3: https://github.com/thesofproject/sof-bin/
sof-audio-pci-intel-mtl 0000:00:1f.3: error: sof_probe_work failed err: -2

[Moritz (moritz89)]

After extracting the intel/sof-ipc4/mtl/sof-mtl.ri.zst and intel/sof-ace-tplg/sof-mtl-rt711-4ch.tplg.zst and placing them in the same folder, the following dmesg output is created:

snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040380
snd_hda_intel 0000:00:1f.3: SoundWire enabled on CannonLake+ platform, using SOF driver
sof-audio-pci-intel-mtl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040380
sof-audio-pci-intel-mtl 0000:00:1f.3: SoundWire enabled on CannonLake+ platform, using SOF driver
sof-audio-pci-intel-mtl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040380
sof-audio-pci-intel-mtl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
sof-audio-pci-intel-mtl 0000:00:1f.3: use msi interrupt mode
sof-audio-pci-intel-mtl 0000:00:1f.3: DMICs detected in NHLT tables: 0
sof-audio-pci-intel-mtl 0000:00:1f.3: hda codecs found, mask 4
sof-audio-pci-intel-mtl 0000:00:1f.3: Firmware paths/files for ipc type 1:
sof-audio-pci-intel-mtl 0000:00:1f.3: Firmware file: intel/sof-ipc4/mtl/sof-mtl.ri
sof-audio-pci-intel-mtl 0000:00:1f.3: Firmware lib path: intel/sof-ipc4-lib/mtl
sof-audio-pci-intel-mtl 0000:00:1f.3: Topology file: intel/sof-ace-tplg/sof-mtl-rt711.tplg
sof-audio-pci-intel-mtl 0000:00:1f.3: Loaded firmware library: ADSPFW, version: 2.8.1.1
cs42l43 sdw:0:0:01fa:4243:01: supply vdd-p not found, using dummy regulator
cs42l43 sdw:0:0:01fa:4243:01: supply vdd-d not found, using dummy regulator
cs42l43 sdw:0:0:01fa:4243:01: supply vdd-a not found, using dummy regulator
cs42l43 sdw:0:0:01fa:4243:01: supply vdd-io not found, using dummy regulator
cs42l43 sdw:0:0:01fa:4243:01: supply vdd-cp not found, using dummy regulator
cs35l56 sdw:0:2:01fa:3556:01:2: supply VDD_P not found, using dummy regulator
cs35l56 sdw:0:2:01fa:3556:01:2: supply VDD_IO not found, using dummy regulator
cs35l56 sdw:0:2:01fa:3556:01:2: supply VDD_A not found, using dummy regulator
cs35l56 sdw:0:2:01fa:3556:01:3: supply VDD_P not found, using dummy regulator
cs35l56 sdw:0:2:01fa:3556:01:3: supply VDD_IO not found, using dummy regulator
cs35l56 sdw:0:2:01fa:3556:01:3: supply VDD_A not found, using dummy regulator
cs35l56 sdw:0:3:01fa:3556:01:0: supply VDD_P not found, using dummy regulator
cs35l56 sdw:0:3:01fa:3556:01:0: supply VDD_IO not found, using dummy regulator
cs35l56 sdw:0:3:01fa:3556:01:0: supply VDD_A not found, using dummy regulator
cs35l56 sdw:0:3:01fa:3556:01:1: supply VDD_P not found, using dummy regulator
cs35l56 sdw:0:3:01fa:3556:01:1: supply VDD_IO not found, using dummy regulator
cs35l56 sdw:0:3:01fa:3556:01:1: supply VDD_A not found, using dummy regulator
sof-audio-pci-intel-mtl 0000:00:1f.3: Booted firmware version: 2.8.1.1
cs42l43 sdw:0:0:01fa:4243:01: devid: 0x042a43, rev: 0xa1, otp: 0x03
cs35l56 sdw:0:2:01fa:3556:01:3: Cirrus Logic CS35L56 Rev B0 OTP3 fw:3.4.4 (patched=0)
cs35l56 sdw:0:3:01fa:3556:01:1: Cirrus Logic CS35L56 Rev B0 OTP3 fw:3.4.4 (patched=0)
cs35l56 sdw:0:2:01fa:3556:01:2: Cirrus Logic CS35L56 Rev B0 OTP3 fw:3.4.4 (patched=0)
cs35l56 sdw:0:3:01fa:3556:01:0: Cirrus Logic CS35L56 Rev B0 OTP3 fw:3.4.4 (patched=0)
cs42l43 sdw:0:0:01fa:4243:01...

[Alex Hulbert (ahulbert)]

I think sof-mtl-rt711-4ch.tplg and sof-mtl-rt711.tplg aren't the same thing. I'm guessing the former is for devices with four audio channels? I'm on arch with a sof-mtl-rt711-4ch.tplg and another file beginning with "sof-mtl-rt711", but no "sof-mtl-rt711.tplg". Renaming either of them to sof-mtl-rt711 produces the same error. Also, googling "sof-mtl-rt711" reveals an internal Intel document mentioning the existence of this file, so I'd imagine Intel hasn't released the file yet.

[Alex Hulbert (ahulbert)]

Nevermind, that turned out to be a red herring, using the latest linux release candidate along with some bleeding edge versions of packages solves both the audio and the microphone! https://github.com/thesofproject/linux/issues/4879