Fresh install of Ubuntu 24: Intel WhiskeyLake-U (i915) Sound Sink missing despite working Source of same Device

[beMOTION]

See https://ubuntuforums.org/showthread.php?t=2502377 for detailed information:

In short:
Fresh install of 24 LTS causes internal speakers of Laptops with Intel WhiskeyLake-U (i915) to not recognize the Hardware/Sound Sink.

This issue was not existing up until 22 LTS with using PipeWire/Wireplumber (maybe Ubuntu 23 works too, I never tried).

Even when upgrading from 22 LTS to 24 LTS the issue persists, so it clearly is with the Kernel Packages for Firmware/Modules.

Opening f.e. Alsamixer, the HDA Intel SND / Realtek ALC236 is recognized. As the internal Microphone works as Source, I am baffled why the internal speakers as sinks wont be recognized.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 6.8.0-49.49-generic 6.8.12
Uname: Linux 6.8.0-49-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/seq: lulz 4963 F.... pipewire
 /dev/snd/controlC1: lulz 4967 F.... wireplumber
 /dev/snd/controlC0: lulz 4967 F.... wireplumber
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Fri Nov 22 17:25:12 2024
InstallationDate: Installed on 2024-11-13 (9 days ago)
InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 (20240827.1)
MachineType: HP HP ProBook 450 G6
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/12/2024
dmi.bios.release: 28.0
dmi.bios.vendor: HP
dmi.bios.version: R71 Ver. 01.28.00
dmi.board.name: 8538
dmi.board.vendor: HP
dmi.board.version: KBC Version 51.31.00
dmi.chassis.asset.tag: 5CD94162RL
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 81.49
dmi.modalias: dmi:bvnHP:bvrR71Ver.01.28.00:bd04/12/2024:br28.0:efr81.49:svnHP:pnHPProBook450G6:pvrSBKPF:rvnHP:rn8538:rvrKBCVersion51.31.00:cvnHP:ct10:cvr:sku5TL19ES#ABD:
dmi.product.family: 103C_5336AN HP ProBook
dmi.product.name: HP ProBook 450 G6
dmi.product.sku: 5TL19ES#ABD
dmi.product.version: SBKPF
dmi.sys.vendor: HP

[Juerg Haefliger (juergh)]

Can you please run 'apport-collect 2089400' so that we get kernel logs?