The 2024.09 update (e.g. firmare-sof-signed-2024.09.1-1) is missing
some files critical for many laptops with Intel Lunar Lake laptops.

See original report at (this from Fedora user but same problem
in Debian):
https://github.com/thesofproject/sof/issues/9723

The files in /lib/firmware/intel/sof-ipc4-lib need to be copied also:
https://github.com/thesofproject/sof-bin/tree/v2024.09.2/v2.11.x/sof-ipc4-lib-v2.11.1/lnl

These are not present in the Debian package:
https://packages.debian.org/sid/all/firmware-sof-signed/filelist

This will block audio driver to load on laptops with
 - Intel Lunar Lake
 - HDA audio codec and PCH Digital Mic

The DSP topology used on these laptops will load a module that is shipped
as a loadable module, as and this is not shipped in the RPM, the driver
load will fail.