(In reply to August Wikerfors from comment #781)
> (In reply to Christian G. Semke from comment #780)
> > Here on my Lenovo Legion 7 Slim the audio never worked and the microphone
> > worked until 6.4, now in 6.5 nothing works anymore. Does anyone know how I
> > can resolve this? I'm a bit of a beginner
> > 
> > Alsa:
> http://alsa-project.org/db/?f=24e78ce46f588c8a681c092c24e05811a4f42f77
> > Kernel: 6.5.2-arch1-1
> 
> I've submitted this patch which should fix it:
> https://lore.kernel.org/all/20230911213409.6106-1-...@augustwikerfors.se/

Hey! Looks like this acp6x-mach/yc_acp_quirk_table workaround would also
be needed for Yoga Slim 7 Pro 14ARH7 (LENOVO/82UU). I have one, and the
microphone does not works.

ALSA info:
https://alsa-project.org/db/?f=77e94edfeb14c5e3bf3ffb9524fb5d8390e1b722

>From the kernel logs looks like snd_pci_acp6x detects and enables a device:
```
[    7.120140] snd_pci_acp6x 0000:32:00.5: enabling device (0000 -> 0002)
```
but then there is nothing acp_yc_mach related in the logs.

I would appreciate if you could make a patch. Thanks!

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1958019

Title:
  [Lenovo Legion7 16ACHg6 82N6, Realtek ALC287, Speaker, Internal] No
  sound at all

Status in sound-2.6 (alsa-kernel):
  Confirmed
Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  On my Lenovo Legion-7-16ACHg6 laptop I can't hear any sound by
  internal speakers, but it work by headphones connected to standard
  jack aux.

  uname -r
  5.11.0-44-generic

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu5
  ProcVersionSignature: Ubuntu 5.11.0-44.48~20.04.2-generic 5.11.22
  Uname: Linux 5.11.0-44-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.21
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  i3draven   1266 F.... pulseaudio
   /dev/snd/controlC0:  i3draven   1266 F.... pulseaudio
   /dev/snd/controlC1:  i3draven   1266 F.... pulseaudio
   /dev/snd/pcmC1D0p:   i3draven   1266 F...m pulseaudio
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Jan 15 15:10:53 2022
  InstallationDate: Installed on 2021-10-11 (96 days ago)
  InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Generic failed
  Symptom_Card: Family 17h (Models 10h-1fh) HD Audio Controller - HD-Audio 
Generic
  Symptom_DevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  i3draven   1266 F.... pulseaudio
   /dev/snd/controlC0:  i3draven   1266 F.... pulseaudio
   /dev/snd/controlC1:  i3draven   1266 F.... pulseaudio
   /dev/snd/pcmC1D0p:   i3draven   1266 F...m pulseaudio
  Symptom_Jack: Speaker, Internal
  Symptom_Type: No sound at all
  Title: [82N6, Realtek ALC287, Speaker, Internal] No sound at all
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/08/2021
  dmi.bios.release: 1.49
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GKCN49WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: LNVNB161216
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0R32862 WIN
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Legion 7 16ACHg6
  dmi.ec.firmware.release: 1.49
  dmi.modalias: 
dmi:bvnLENOVO:bvrGKCN49WW:bd11/08/2021:br1.49:efr1.49:svnLENOVO:pn82N6:pvrLegion716ACHg6:skuLENOVO_MT_82N6_BU_idea_FM_Legion716ACHg6:rvnLENOVO:rnLNVNB161216:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrLegion716ACHg6:
  dmi.product.family: Legion 7 16ACHg6
  dmi.product.name: 82N6
  dmi.product.sku: LENOVO_MT_82N6_BU_idea_FM_Legion 7 16ACHg6
  dmi.product.version: Legion 7 16ACHg6
  dmi.sys.vendor: LENOVO

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