Comment 7 for bug 1856366

Hi Paul,

> does the pre-built firmware file from https://github.com/thesofproject/sof/releases work?

I tried the releases 1.4.1 and 1.3 as well as followed their instractions to build from latest soource. The sof-icl.ri did not work for me with 5.5-rc1 and 5.4. I did not check for 5.3 because my sound card (Intel Corporation Device [8086:34c8]) was working well already with the snd_hda_intel module.

> 2. With the firmware file installed, does Linux 5.3 work with `dsp_driver=0`?
Yes. Without and with that option 5.3 will load snd_hda_intel for the sound card.

> Please attach the Linux messages from the non-working and working boot.

Find attached the outputs. I think the interesting bit is in the not working boot:

 sof-audio-pci 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100
 sof-audio-pci 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver
 sof-audio-pci 0000:00:1f.3: enabling device (0000 -> 0002)
 sof-audio-pci 0000:00:1f.3: warning: No matching ASoC machine driver found
 sof-audio-pci 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040100
 sof-audio-pci 0000:00:1f.3: use msi interrupt mode
 sof-audio-pci 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915

> you should also install the other firmware files like for graphics.
I have linux-firmware installed. The video looks good for now, so I will ignore that issue :|