Hey Cameron, I did apply the patch against kernel 6.2.2 for the 14ACN6.
There was sound from the 2 tweeters as before the patch was applied but still I 
don't know if the 2 woofers are actually active?
Not sure what the best way to find out if woofers are working.
Is there anything I can do with speaker-test?
But I'll try to compare before and after patch.

I was going to try to sniff the verbs for this laptop but the problem is that 
the audio controllers are on the same IOMMU groups as radeon gpu, pci, usb and 
psp.
So I cannot not passthrough the audio devices without ACL override.

Uname -a
Linux 6.2.2-273-tkg-cfs #1 SMP PREEMPT_DYNAMIC TKG Sat, 04 Mar 2023 08:30:30 
+0000 x86_64 GNU/Linux

Alsa info:
http://alsa-project.org/db/?f=f1d466ea0cfa556f461b73a529bba4a66d634725

Dmesg:
❯ sudo dmesg | grep -E '(csc3551|cs35l41|reset_gpio|short|adev|speaker)'
[    0.654315] IPI shorthand broadcast: enabled
[   19.026160] snd_hda_codec_realtek hdaudioC1D0: autoconfig for ALC287: 
line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[   19.026199] snd_hda_codec_realtek hdaudioC1D0:    speaker_outs=0 
(0x0/0x0/0x0/0x0/0x0)
[   23.866865] wlan0: VHT capa missing/short, disabling VHT/HE/EHT
[  200.121348] wlan0: VHT capa missing/short, disabling VHT/HE/EHT
[  271.290659] wlan0: VHT capa missing/short, disabling VHT/HE/EHT

bugid for this laptop:
https://bugzilla.kernel.org/show_bug.cgi?id=215632

-- 
You received this bug notification because you are a member of Desktop
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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