I'll follow up with you guys probably tomorrow (but possibly as soon as 
later today). I've just been having an eventful holiday weekend.

As tomorrow is a normal weekday that I have off, I'll finally reach out 
to Lenovo again tomorrow myself.

Doing a quick search, I don't think anyone has shared their Legion Slim 
7 Gen 7 AMD alsa-info. Can someone do that? It's likely still the 
CSC3551, but it would be good to confirm.

As for those ACPI messages... Looks like you have ACPI some stuff that 
isn't supported under Linux yet. It's a fairly new laptop, so that's to 
be expected. I don't really see that on my current laptop, but I do see 
it with my current desktop which I've had for under a month (Asus 
Crosshair x670 Extreme).

The CCP messages means Linux can't utilize the AMD Crypto Co-Processor 
on your CPU. I've had this message for my current desktop as well as my 
previous  (AMD 7950 and 5950 CPU's respectively). From my research, the 
motherboard vendor (both Asus in my case) need to fix the BIOS. Maybe 
it's a similar issue to what we're seeing with our laptops. While 
unfortunately, it hasn't really impacted me.

On 11/26/22 11:28, bugzilla-dae...@kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=208555
> --- Comment #720 from antide...@gmail.com ---
> (In reply to Blake Lee from comment #719)
>> (In reply to Cameron Berkenpas from comment #711)
>>> It does not, which is unfortunate, as the 6th gen model recently finally
>>> got support.
>>> The gen 7 uses the CSC3551 and the gen 7 is missing the properties in
>>> the _DSD tables.
>>> Do you already have the Gen 7? Try submitting a Lenovo support ticket
>>> asking them to add the properties. I have a ticket they haven't follow
>>> up on yet so I added a comment to the ticket I think less than an hour ago.
>>> On 10/24/22 09:55, bugzilla-dae...@kernel.org wrote:
>>>> https://bugzilla.kernel.org/show_bug.cgi?id=208555
>>>> --- Comment #710 from Howard Chu (h...@highlandsun.com) ---
>>>> Hi, I might've missed this but - do we know for certain that the 7th gen
>>>> Legion
>>>> 7 (2022 model) uses the same amplifier chip as the 6th gen (2021 model)?
>> Hi Cameron,
>> I got my Legion Slim 7 Gen 7 AMD version yesterday and when I excitedly
>> installed Fedora, I found the audio did not work. I would like to throw my
>> weight behind this to get it fixed, but I don't know what to say to support
>> exactly in my ticket. What do I need to ask them for?
>> I would really prefer not to have to send this laptop back. Is there
>> anything else I can do to help?
> I wish I knew. My understanding is that they have to add DSD entries in the
> next BIOS update.  Maybe someone could elaborate further. When I put a ticket
> in they just sent me a generic sound troubleshooting guide for Windows.  I am
> currently dualbooting hoping for an eventual solution (other than headphones
> or
> a bluetooth speaker).
> Nov 25 21:36:05 [redacted] kernel: ACPI BIOS Error (bug): Could not resolve
> symbol [\_SB.PCI0.LPC0.EC0.OKEC], AE_NOT_FOUND (20220331/psargs-330)
> Nov 25 21:36:05 [redacted] kernel: ccp 0000:07:00.2: ccp: unable to access
> the
> device: you might be running a broken BIOS.
> Nov 26 00:18:21 [redacted] kernel: ACPI BIOS Error (bug): Could not resolve
> symbol [\_SB.PCI0.LPC0.EC0.OKEC], AE_NOT_FOUND (20220331/psargs-330)
> Nov 26 11:55:07 [redacted] kernel: ACPI BIOS Error (bug): Could not resolve
> symbol [\_SB.PCI0.LPC0.EC0.OKEC], AE_NOT_FOUND (20220331/psargs-330)

You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.

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

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

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

  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
   /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 
   /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.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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