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drivers – No sound, only ‘HDMI Output’ shown in Volume Control, no way to load the onboard sound device (‘Intel Cannon Lake PCH cAVS’)

A number of days in the past my laptop computer stopped enjoying or recording sound. I upgraded to Ubuntu 20.04, to no avail.

The Quantity Management exhibits completely different ‘HDMI output’ profiles (linked to the NVIDIA TU106 Excessive Definition Audio card) however fails to point out any analog sound profiles.

I’ve two playing cards:

lspci -v | grep -A7 -i "audio"
00:1f.Three Multimedia audio controller: Intel Company Cannon Lake PCH cAVS (rev 10)
        Subsystem: Hewlett-Packard Firm Cannon Lake PCH cAVS
        Flags: bus grasp, quick devsel, latency 32, IRQ 16
        Reminiscence at da210000 (64-bit, non-prefetchable) [size=16K]
        Reminiscence at da100000 (64-bit, non-prefetchable) [size=1M]
        Capabilities: 
        Kernel driver in use: sof-audio-pci
        Kernel modules: snd_hda_intel, snd_sof_pci

00:1f.four SMBus: Intel Company Cannon Lake PCH SMBus Controller (rev 10)
        Subsystem: Hewlett-Packard Firm Cannon Lake PCH SMBus Controller
        Flags: medium devsel, IRQ 16
        Reminiscence at da21c000 (64-bit, non-prefetchable) [size=256]
        I/O ports at efa0 [size=32]
--
01:00.1 Audio machine: NVIDIA Company TU106 Excessive Definition Audio Controller (rev a1)
        Subsystem: Hewlett-Packard Firm TU106 Excessive Definition Audio Controller
        Flags: bus grasp, quick devsel, latency 0, IRQ 17
        Reminiscence at dc080000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: 
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel

…however just one is used:

aplay -l
**** Checklist of PLAYBACK {Hardware} Units ****
card 1: NVidia [HDA NVidia], machine 3: HDMI 0 [HDMI 0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], machine 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], machine 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

I attempted to pressure the loading of the Intel card driver in /and so on/modprobe.d/alsa-base.conf with:

choices snd_hda_intel allow=1,Zero vid=8086,10de pid=a348,10f9
choices snd_hda_intel index=Zero vid=8086 pid=a348
choices snd_hda_intel index=1

…however no pleasure.

May somebody assist me?

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