I tried both google and brave search and have yet to come across an answer that
works on my machine, a newly installed 15.6 leap instance.

Here is the output from inxi -Aa

Audio:
  Device-1: Intel Tiger Lake-LP Smart Sound Audio

    driver: sof-audio-pci-intel-tgl

    alternate: snd_hda_intel,snd_sof_pci_intel_tgl bus-ID: 00:1f.3

    chip-ID: 8086:a0c8 class-ID: 0401

  API: ALSA v: k6.4.0-150600.21-default status: kernel-api with: aoss

    type: oss-emulator tools: alsactl,alsamixer,amixer

  Server-1: PipeWire v: 1.0.5 status: off with: wireplumber status: off

    tools: pw-cat,pw-cli,wpctl

  Server-2: PulseAudio v: 17.0 status: active with: pulseaudio-alsa

    type: plugin tools: pacat,pactl,pavucontrol


dmesg output:

here's the output:

[ 142.261901] sof-audio-pci-intel-tgl 0000:00:1f.3: DSP detected with PCI
class/subclass/prog-if info 0x040100

[ 142.262162] sof-audio-pci-intel-tgl 0000:00:1f.3: DSP detected with PCI
class/subclass/prog-if 0x040100

[ 142.262285] sof-audio-pci-intel-tgl 0000:00:1f.3: bound 0000:00:02.0 (ops
i915_audio_component_bind_ops [i915])

[ 142.270908] sof-audio-pci-intel-tgl 0000:00:1f.3: use msi interrupt mode

[ 142.285212] sof-audio-pci-intel-tgl 0000:00:1f.3: NHLT table not found

[ 142.285238] sof-audio-pci-intel-tgl 0000:00:1f.3: hda codecs found, mask 4

[ 142.285754] sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware info: version
2:2:0-57864

[ 142.285761] sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware: ABI 3:22:1 Kernel
ABI 3:23:0

[ 142.285768] sof-audio-pci-intel-tgl 0000:00:1f.3: unknown sof_ext_man header
type 3 size 0x30

[ 142.403661] sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware info: version
2:2:0-57864

[ 142.403680] sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware: ABI 3:22:1 Kernel
ABI 3:23:0


I assume the bolded line is the pertinent one.

I have sof-firmware installed, as well as the above drivers. I disabled
pipewire, as I've had problems on Ubuntu/Mint with Pipewire. I have also tried
this with Pipewire enabled and have had the same issue.

The device shows up in YaST Sound as "Tiger Lake-LP Smart Sound Technology
Audio Controller." When I select edit and try Quick Automatic Setup or Normal
Setup, or Advanced, I get the following error:

The kernel module snd-sof-pci-intel-tgl for sound support
could not be loaded. This can be caused by incorrect
module parameters, including invalid IO or IRQ parameters.

As I said above, I have this working on Linux Mint 21.3 Virginia, so long as I
have Pipewire disabled with the sof-firmware drivers. Does anyone have any clue
what I need to do to get the sound working? It's really the only thing stopping
me from switching.

Thanks