Dear Maintainer,

My Dell laptop with a Lunar Lake-M audio controller doesn't have any sound.

tomcat:~# cat /proc/asound/cards
--- no soundcards ---

In fact, during boot, the kernel tries to load some firmware modules
that are missing from my installation, even though I installed the
latest firmware-sof-signed package from unstable.

[   22.457546] sof-audio-pci-intel-lnl 0000:00:1f.3: Firmware paths/files for ipc type 1:
[   22.457548] sof-audio-pci-intel-lnl 0000:00:1f.3:  Firmware file:     intel/sof-ipc4/lnl/sof-lnl.
ri
[   22.457549] sof-audio-pci-intel-lnl 0000:00:1f.3:  Firmware lib path: intel/sof-ipc4-lib/lnl
[   22.457549] sof-audio-pci-intel-lnl 0000:00:1f.3:  Topology file:     function topologies
[   22.457881] sof-audio-pci-intel-lnl 0000:00:1f.3: Loaded firmware library: ADSPFW, version: 2.15.
0.1
[   22.744328] sof-audio-pci-intel-lnl 0000:00:1f.3: firmware: failed to load intel/sof-ipc4/lnl/sof
-lnl-openmodules.ri (-2)
[   22.744334] sof-audio-pci-intel-lnl 0000:00:1f.3: firmware: failed to load intel/sof-ipc4/lnl/sof
-lnl-openmodules.ri (-2)
[   22.744338] sof-audio-pci-intel-lnl 0000:00:1f.3: firmware: failed to load intel/sof-ipc4/lnl/sof
-lnl-openmodules.ri (-2)
[   22.744343] sof-audio-pci-intel-lnl 0000:00:1f.3: firmware: failed to load intel/sof-ipc4/lnl/sof
-lnl-debug.ri (-2)
[   22.744345] sof-audio-pci-intel-lnl 0000:00:1f.3: firmware: failed to load intel/sof-ipc4/lnl/sof
-lnl-debug.ri (-2)
[   22.744348] sof-audio-pci-intel-lnl 0000:00:1f.3: firmware: failed to load intel/sof-ipc4/lnl/sof
-lnl-debug.ri (-2)
[   22.746251] sof-audio-pci-intel-lnl 0000:00:1f.3: Booted firmware version: 2.15.0.1

Indeed, I only have one file in the listed path:

tomcat:~# ls /lib/firmware/intel/sof-ipc4/lnl/
community  intel-signed  sof-lnl.ri

Please advise or fix.

Regards
Ralph

Since reportbug didn't include it:

- lspci -vv information

00:1f.3 Audio device: Intel Corporation Lunar Lake-M HD Audio
Controller (rev 10) (prog-if 80 [HDA compatible with vendor specific
extensions])
    Subsystem: Dell Device 0cdd
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 64
    Interrupt: pin A routed to IRQ 190
    IOMMU group: 18
    Region 0: Memory at 3013200000 (64-bit, non-prefetchable) [size=512K]
    Region 4: Memory at 3013000000 (64-bit, non-prefetchable) [size=2M]
    Capabilities: [50] Power Management version 3
        Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA
PME(D0-,D1-,D2-,D3hot+,D3cold+)
        Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [c0] Vendor Specific Information: Len=14 <?>
    Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Address: 00000000fee00a38  Data: 0000
    Kernel driver in use: sof-audio-pci-intel-lnl
    Kernel modules: snd_sof_pci_intel_lnl, snd_hda_intel

- loaded "sof" modules

snd_soc_sof_sdw        57344  0
snd_soc_intel_hda_dsp_common    16384  1 snd_soc_sof_sdw
snd_sof_probes         28672  0
snd_sof_pci_intel_lnl    16384  0
snd_sof_pci_intel_mtl    36864  1 snd_sof_pci_intel_lnl
snd_sof_intel_hda_generic    36864  2
snd_sof_pci_intel_mtl,snd_sof_pci_intel_lnl
soundwire_intel        86016  1 snd_sof_intel_hda_generic
snd_sof_intel_hda_sdw_bpt    20480  1 soundwire_intel
snd_sof_intel_hda_common   204800  4
snd_sof_pci_intel_mtl,snd_sof_intel_hda_sdw_bpt,snd_sof_pci_intel_lnl,snd_sof_intel_hda_generic
snd_soc_hdac_hda       24576  1 snd_sof_intel_hda_common
snd_sof_intel_hda_mlink    49152  5
snd_sof_intel_hda_sdw_bpt,snd_sof_pci_intel_lnl,soundwire_intel,snd_sof_intel_hda_common,snd_sof_intel_hda_generic
snd_sof_intel_hda      24576  2
snd_sof_intel_hda_common,snd_sof_intel_hda_generic
snd_sof_pci            24576  3
snd_sof_pci_intel_mtl,snd_sof_pci_intel_lnl,snd_sof_intel_hda_generic
snd_sof_xtensa_dsp     16384  1 snd_sof_intel_hda_generic
snd_sof               446464  8
snd_sof_pci_intel_mtl,snd_sof_intel_hda_sdw_bpt,snd_sof_pci_intel_lnl,snd_sof_pci,snd_sof_intel_hda_common,snd_sof_intel_hda_generic,snd_sof_probes,snd_sof_intel_hda
snd_sof_utils          16384  1 snd_sof
snd_hda_ext_core       36864  5
snd_sof_intel_hda_sdw_bpt,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda_mlink,snd_sof_intel_hda
snd_hda_codec         225280  6
snd_hda_codec_hdmi,snd_hda_intel,snd_soc_intel_hda_dsp_common,snd_soc_hdac_hda,snd_sof_intel_hda,snd_hda_codec_intelhdmi
snd_hda_core          159744  9
snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_soc_intel_hda_dsp_common,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda,snd_hda_codec_intelhdmi
snd_intel_dspcfg       49152  4
snd_hda_intel,snd_sof,snd_sof_intel_hda_common,snd_sof_intel_hda_generic
snd_intel_sdw_acpi     16384  2 snd_intel_dspcfg,snd_sof_intel_hda_generic
snd_soc_acpi_intel_match   147456  3
snd_sof_pci_intel_mtl,snd_sof_pci_intel_lnl,snd_sof_intel_hda_generic
snd_soc_sdw_utils     155648  2 snd_soc_sof_sdw,snd_sof_intel_hda_generic
snd_soc_acpi           16384  2
snd_soc_acpi_intel_match,snd_sof_intel_hda_generic
snd_soc_core          454656  9
snd_soc_sof_sdw,soundwire_intel,snd_sof,snd_soc_sdca,snd_sof_intel_hda_common,snd_soc_sdw_utils,snd_soc_hdac_hda,snd_sof_probes,snd_soc_dmic
snd_compress           32768  2 snd_soc_core,snd_sof_probes
snd_pcm               217088  13
snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,soundwire_intel,snd_sof,snd_soc_sdca,snd_sof_intel_hda_common,snd_compress,snd_sof_intel_hda_generic,snd_soc_core,snd_sof_utils,snd_hda_core,snd_pcm_dmaengine
snd                   159744  14
snd_ctl_led,snd_soc_sof_sdw,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_sof,snd_soc_sdca,snd_timer,snd_compress,snd_soc_sdw_utils,snd_soc_hdac_hda,snd_soc_core,snd_pcm