Greetings, I recently found myself with a rather atypical laptop from a niche Chinese manufacturer (relying on an old J3455 SoC); the `Intel Smart Sound Technology` output does work under Windows with the appropriate drivers, but under GNU/Linux (no matter which distro or release I test: Debian, Ubuntu, ClearLinux,…) no audio output is reportedly available other than HDMI. Lspci does list an “Audio Cluster” [10ec:10fc] and supposedly handles it with snd_hda_intel, but that’s as far as I got. This looks to me like a missing firmware issue, but I’ve spent hours trawling the Internets to no avail.
I also tried fiddling with the modules, by either blacklisting snd_hda_intel or loading snd_soc_skl and virtually every other combination I could think of. If there is an arcane option to be passed to snd_hda_intel, I have yet to find which one. Attached are the alsa-info output, the verbose lspci output and (just in case) the output of `wmic path win32_pnpentity` on Windows.
If some of you fine alsa-devel experts could give me any pointers, I’d greatly appreciate it!
Cheers, -- Valentin (from France).