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[Alexandre <2125846@xxxxxxxxxxxxxxxxxx>]

that's awesome. thank you very much for your quick help. the board
indeed is recognized as USB connection. would never have thought of
that. you can close this ticket. thanks again!

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https://bugs.launchpad.net/bugs/2125846

Title:
  [MSI MAG B650 Tomahawk / ALC1220] snd_hda_intel 0000:10:00.6: no
  codecs found (Subsystem 1462:ed75)

Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  Description:

  On an MSI MAG B650 Tomahawk (subsystem ID 1462:ed75) with Realtek
  ALC1220 onboard audio, the kernel detects the HD Audio controller but
  fails to initialize the codec.

  As a result, only HDMI audio devices are available (aplay -l shows
  NVIDIA/AMD HDMI outputs and USB devices, but no “Analog” outputs).

  This appears to be a missing quirk for this board revision.

  System information:

  Distro: Xubuntu 25.04 (development branch)

  Kernel version:

  $ uname -r
  6.14.0-32-generic

  
  linux-firmware package:

  20250317.git1d4c88ee-0ubuntu1.6

  
  Audio controller (lspci):

  10:00.6 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Family 17h/19h/1ah HD Audio Controller [1022:15e3]
          DeviceName: Realtek ALC1220
          Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:ed75]
          Kernel driver in use: snd_hda_intel

  
  ALSA modules:

  $ cat /proc/asound/modules
   0 snd_hda_intel
   1 snd_hda_intel
   2 snd_hda_intel
   3 snd_usb_audio
   4 snd_usb_audio

  
  Relevant dmesg logs:

  snd_hda_intel 0000:10:00.6: enabling device (0000 -> 0002)
  snd_hda_intel 0000:10:00.6: no codecs found!

  
  Expected result:
  ALC1220 analog audio devices should appear in aplay -l and be available in PulseAudio/PipeWire.

  Actual result:
  No analog audio devices, only HDMI/USB audio cards are available.

  Steps to reproduce:

  Boot Ubuntu/Xubuntu 25.04 with MSI MAG B650 Tomahawk.

  Run aplay -l.

  Observe that ALC1220 analog devices are missing.

  Check dmesg | grep hda → “no codecs found!”.

  Additional notes:

  BIOS setting HD Audio Controller is enabled.

  No “Front Panel Type” option available in BIOS.

  Problem persists with kernel boot parameters:

  snd-intel-dspcfg.dsp_driver=1

  snd_hda_intel.model=alc1220

  Latest linux-firmware installed.

  Same behavior confirmed on Ubuntu mainline kernel 6.14.

  ✅ Call to action

  Please add a quirk for subsystem 1462:ed75 (MSI MAG B650 Tomahawk,
  ALC1220).

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