Comment 0 for bug 1949721

I installed Ubuntu 20.04 and the sound is not working on the fresh install.
The microphone either.
I have 5 computers with same hardware. Same problem everywhere.
I guess there is a missing driver.

Here is lspci output:

00:00.0 Host bridge: Intel Corporation Device 9a14 (rev 01)
00:02.0 VGA compatible controller: Intel Corporation Device 9a49 (rev 01)
00:04.0 Signal processing controller: Intel Corporation Device 9a03 (rev 01)
00:14.0 USB controller: Intel Corporation Device a0ed (rev 20)
00:14.2 RAM memory: Intel Corporation Device a0ef (rev 20)
00:14.3 Network controller: Intel Corporation Device a0f0 (rev 20)
00:15.0 Serial bus controller [0c80]: Intel Corporation Device a0e8 (rev 20)
00:15.1 Serial bus controller [0c80]: Intel Corporation Device a0e9 (rev 20)
00:15.2 Serial bus controller [0c80]: Intel Corporation Device a0ea (rev 20)
00:16.0 Communication controller: Intel Corporation Device a0e0 (rev 20)
00:1d.0 PCI bridge: Intel Corporation Device a0b0 (rev 20)
00:1f.0 ISA bridge: Intel Corporation Device a082 (rev 20)
00:1f.3 Multimedia audio controller: Intel Corporation Device a0c8 (rev 20)
00:1f.4 SMBus: Intel Corporation Device a0a3 (rev 20)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Device a0a4 (rev 20)
01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a809

Here is lspci -v output about audio:

00:1f.3 Multimedia audio controller: Intel Corporation Device a0c8 (rev 20)
        Subsystem: QUANTA Computer Inc Device 1307
        Flags: bus master, fast devsel, latency 32, IRQ 147
        Memory at 6001120000 (64-bit, non-prefetchable) [size=16K]
        Memory at 6001000000 (64-bit, non-prefetchable) [size=1M]
        Capabilities: <access denied>
        Kernel driver in use: sof-audio-pci
        Kernel modules: snd_hda_intel, snd_sof_pci

The pa-info output is in attachment.