### ๐Ÿž Audio broken with Broadwell-RT286 on Ubuntu 24.04 (Kernel
6.11.0-29-generic)

#### ๐Ÿ“Œ Summary
After upgrading to Ubuntu 24.04 (kernel `6.11.0-29-generic`), the internal 
speakers of my notebook using the `broadwell-rt286` audio chip no longer work.

Only headphone output functions correctly. Internal audio playback is
completely silent.

#### ๐Ÿ’ก Details

- `aplay -l` detects the device as `broadwell-rt286`
- PulseAudio/PipeWire only shows a `null-sink` (no actual hardware output)
- Module `snd_soc_sst_broadwell_rt286` is missing from 
`/lib/modules/6.11.0-29-generic`
- On Ubuntu 22.04 (with kernel 5.15 or 6.5), everything worked correctly โ€” the 
internal speakers were functional

#### ๐Ÿ› ๏ธ Suggested Fix

Please ensure the following kernel configuration options are enabled in
Ubuntu 24.04 kernels:


CONFIG_SND_SOC_INTEL_SST_TOPLEVEL=m
CONFIG_SND_SOC_SST_BROADWELL_RT286=m
CONFIG_SND_SOC_INTEL_BDW_RT286_MACH=m
CONFIG_SND_SOC_RT286=m


These were previously present in older Ubuntu kernels and enabled full
sound support for many laptops with Intel Broadwell-based audio hardware
(e.g., some Lenovo, Toshiba, Asus models).

#### ๐Ÿงช Temporary workaround

Using headphones works as a fallback. But internal audio remains broken
unless the correct modules are re-enabled in the kernel.

#### ๐Ÿ“Ž System Info

- Ubuntu 24.04 LTS
- Kernel: `6.11.0-29-generic`
- Audio: `broadwell-rt286` (Realtek RT286 via Intel SoC)
- Module `snd_soc_sst_broadwell_rt286` cannot be loaded (`modprobe: FATAL: 
Module ... not found`)

---

Please consider re-enabling these modules in future kernel builds. Thank
you!

-- 
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Packages, which is subscribed to linux-hwe-6.11 in Ubuntu.
https://bugs.launchpad.net/bugs/2116084

Title:
  Internal audio via the Broadwell-RT286 sound chip no longer works.

Status in linux-hwe-6.11 package in Ubuntu:
  New

Bug description:
  Since upgrading to Ubuntu 24.04 with kernel 6.11.0-29-generic,
  internal audio via the Broadwell-RT286 sound chip no longer works.

  Only headphones work. Internal speakers do not produce sound.

  The kernel module snd_soc_sst_broadwell_rt286 is completely missing in
  /lib/modules, and cannot be loaded.

  In Ubuntu 22.04 (e.g., with kernel 5.15 or 6.5), this module was
  present and sound worked fine.

  Please re-enable the following in the kernel config:
  CONFIG_SND_SOC_SST_BROADWELL_RT286,
  CONFIG_SND_SOC_INTEL_BDW_RT286_MACH,
  and related SOF/ASoC options.

  Thank you!

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: linux-image-6.11.0-29-generic 6.11.0-29.29~24.04.1
  ProcVersionSignature: Ubuntu 6.11.0-29.29~24.04.1-generic 6.11.11
  Uname: Linux 6.11.0-29-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  dz         3837 F.... wireplumber
   /dev/snd/controlC0:  dz         3837 F.... wireplumber
   /dev/snd/seq:        dz         3833 F.... pipewire
  CRDA: N/A
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Jul  7 13:03:48 2025
  InstallationDate: Installed on 2024-12-27 (192 days ago)
  InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 
(20240827.1)
  MachineType: HP HP Spectre x360 Convertible
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-29-generic 
root=UUID=ca71251f-0f9f-430f-9051-0dc29bb60e6e ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions:
   linux-restricted-modules-6.11.0-29-generic N/A
   linux-backports-modules-6.11.0-29-generic  N/A
   linux-firmware                             20240318.git3b128b60-0ubuntu2.14
  SourcePackage: linux-hwe-6.11
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/22/2016
  dmi.bios.release: 15.66
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F.42
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 802D
  dmi.board.vendor: HP
  dmi.board.version: 58.62
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.chassis.version: Chassis Version
  dmi.ec.firmware.release: 58.98
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrF.42:bd06/22/2016:br15.66:efr58.98:svnHP:pnHPSpectrex360Convertible:pvr:rvnHP:rn802D:rvr58.62:cvnHP:ct10:cvrChassisVersion:skuP1Q63EA#UUZ:
  dmi.product.family: 103C_5335KV G=N L=CON B=HP S=SPT
  dmi.product.name: HP Spectre x360 Convertible
  dmi.product.sku: P1Q63EA#UUZ
  dmi.sys.vendor: HP

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