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[Ben Hoyt <1926165@xxxxxxxxxxxxxxxxxx>]

For anyone else following, I finally got this working on mine. Two
things were needed:

1. Create this file (to load the spi_intel_pci driver):

$ cat /etc/modules-load.d/spi-intel-pci.conf
spi_intel_pci

And add this line to /etc/modprobe.d/alsa-base.conf:

$ tail -n1 /etc/modprobe.d/alsa-base.conf
options snd-sof-intel-hda-generic hda_model=alc287-yoga9-bass-spk-pin

Then restart and that bass kicks in!

This is on my Lenovo Yoga Pro 7 14IAH10 running Ubuntu 25.04 (Linux
6.14.0-33-generic).

-- 
You received this bug notification because you are a member of
Debcrafters packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1926165

Title:
  Bass speakers not enabled on Lenovo Yoga 9i

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  The Lenovo Yoga 9i has two sets of speakers: regular ones and bass
  speakers. The former work but while latter are detected and show up in
  alsamixer, they play no sound. Plugging headphones in and out or
  toggling any of the volume options does not fix the issue.

  A possibly related issue for a different Yoga version:
  https://bugzilla.kernel.org/show_bug.cgi?id=205755

  ProblemType: Bug
  DistroRelease: Ubuntu 21.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu7
  ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12
  Uname: Linux 5.11.0-16-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu65
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     4466 F.... pulseaudio
                        ubuntu     6219 F.... alsamixer
   /dev/snd/pcmC0D0p:   ubuntu     4466 F...m pulseaudio
  CasperMD5CheckResult: pass
  CasperVersion: 1.461
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Apr 26 15:10:05 2021
  LiveMediaBuild: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:sofhdadsp successful
  Symptom_Card: Tiger Lake-LP Smart Sound Technology Audio Controller - sof-hda-dsp
  Symptom_Jack: Speaker, Internal
  Symptom_PulsePlaybackTest: PulseAudio playback test successful
  Symptom_Type: None of the above
  Title: [82BG, Realtek ALC287, Speaker, Internal] Playback problem
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/28/2021
  dmi.bios.release: 1.40
  dmi.bios.vendor: LENOVO
  dmi.bios.version: EHCN40WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: LNVNB161216
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697WIN
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 31
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Yoga 9 14ITL5
  dmi.ec.firmware.release: 1.40
  dmi.modalias: dmi:bvnLENOVO:bvrEHCN40WW:bd01/28/2021:br1.40:efr1.40:svnLENOVO:pn82BG:pvrYoga914ITL5:rvnLENOVO:rnLNVNB161216:rvrSDK0J40697WIN:cvnLENOVO:ct31:cvrYoga914ITL5:
  dmi.product.family: Yoga 9 14ITL5
  dmi.product.name: 82BG
  dmi.product.sku: LENOVO_MT_82BG_BU_idea_FM_Yoga 9 14ITL5
  dmi.product.version: Yoga 9 14ITL5
  dmi.sys.vendor: LENOVO

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