Missing firmware file for sound for lunar lake (Lenovo Yoga Slim Aurora)
Looks like a file is missing according to dmesg.
The file is
intel/sof-ipc4-tplg/sof-lnl-cs42l43-l0-4ch.tplg
Not sure why it is missing but sound and bluetooth both do not work. I have noted the missing files here.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-a5859c4a47
[ 23.034515] sof-audio-pci-intel-lnl 0000:00:1f.3: enabling device (0000 -> 0002)
[ 23.034707] sof-audio-pci-intel-lnl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040100
[ 23.034885] sof-audio-pci-intel-lnl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [xe])
[ 23.041645] sof-audio-pci-intel-lnl 0000:00:1f.3: use msi interrupt mode
[ 23.050322] acpi device:29: find_sdca_function: SDCA function SmartAmp (type 1) at 0x1
[ 23.050328] acpi device:2a: find_sdca_function: SDCA function UAJ (type 6) at 0x3
[ 23.050331] acpi device:2b: find_sdca_function: SDCA function HID (type 10) at 0x4
[ 23.055298] sof-audio-pci-intel-lnl 0000:00:1f.3: hda codecs found, mask 4
[ 23.055301] sof-audio-pci-intel-lnl 0000:00:1f.3: NHLT device BT(0) detected, ssp_mask 0x4
[ 23.055302] sof-audio-pci-intel-lnl 0000:00:1f.3: BT link detected in NHLT tables: 0x4
[ 23.055304] sof-audio-pci-intel-lnl 0000:00:1f.3: DMICs detected in NHLT tables: 4
[ 23.087177] sof-audio-pci-intel-lnl 0000:00:1f.3: SOF firmware and/or topology file not found.
[ 23.087181] sof-audio-pci-intel-lnl 0000:00:1f.3: Supported default profiles
[ 23.087181] sof-audio-pci-intel-lnl 0000:00:1f.3: - ipc type 1 (Requested):
[ 23.087182] sof-audio-pci-intel-lnl 0000:00:1f.3: Firmware file: intel/sof-ipc4/lnl/sof-lnl.ri
[ 23.087183] sof-audio-pci-intel-lnl 0000:00:1f.3: Topology file: intel/sof-ipc4-tplg/sof-lnl-cs42l43-l0-4ch.tplg
[ 23.087183] sof-audio-pci-intel-lnl 0000:00:1f.3: Check if you have 'sof-firmware' package installed.
[ 23.087184] sof-audio-pci-intel-lnl 0000:00:1f.3: Optionally it can be manually downloaded from:
[ 23.087184] sof-audio-pci-intel-lnl 0000:00:1f.3: https://github.com/thesofproject/sof-bin/
[ 23.088537] sof-audio-pci-intel-lnl 0000:00:1f.3: error: sof_probe_work failed err: -2