Hello all, I'm experiencing the same issue on a Lenovo ThinkPad P14s Gen
6.

**System details:**
Model: 21QTS07S00 (ThinkPad P14s Gen 6)
BIOS: R2WET36W (1.18)
CPU: Intel Arrow Lake
Audio chip: Intel Corporation Device [8086:7728] (sof-audio-pci-intel-mtl), PCI 
00:1f.3
Codec: Realtek ALC257
PCI SSID: 17aa:0000
OS: Ubuntu 24.04
Tested on kernels: 6.17.0-14-generic, 6.17.0-35-generic, 6.17.0-1028-oem, 
6.18.7-061807-generic (mainline) — identical failure on all
PipeWire/WirePlumber: libpulse 16.1.0, libwireplumber 0.5.2

**Symptom:**
speaker-test and aplay both fail with Unable to set hw params for playback: 
Input/output error on the SOF driver. Playback fails consistently regardless of 
kernel version. arecord runs without error but the internal mic array doesn't 
work at all under this configuration.
dmesg shows a blank codec fixup:
[   16.723407] snd_hda_codec_alc269 ehdaudio0D0: ALC257: picked fixup  for PCI 
SSID 17aa:0000

Note the fixup name is empty — no specific quirk entry appears to exist for 
SSID 17aa:0000 on this model.
SOF firmware boots cleanly, so this isn't a firmware load issue:
Loaded firmware library: ADSPFW, version: 2.14.1.1
Booted firmware version: 2.14.1.1

No firmware errors at any point.
**Workaround:** 
setting options snd-intel-dspcfg dsp_driver=1 in /etc/modprobe.d/ restores 
speakers/headphones via the legacy snd-hda-intel driver, but breaks the 
internal DMIC microphone entirely (same trade-off reported above for the 
T14/T15). Currently using a USB headset as a stopgap for the mic.

Happy to provide further logs or test patches if useful.

** Attachment added: "audio-bug-report.txt"
   
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2121736/+attachment/5981008/+files/audio-bug-report.txt

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https://bugs.launchpad.net/bugs/2121736

Title:
  Audio not working on Lenovo ThinkPad T14 with Ubuntu 24.04 – SOF
  driver (sof-audio-pci-intel-cnl) fails to boot DSP firmware (err:
  -110), results in Dummy Output.

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