motherboard :
[ 0.000000] DMI: System manufacturer System Product Name/PRIME
X570-PRO, BIOS 2606 08/13/2020
up to date today on monday the 21st of september 2020
this website helped me a lot :
https://askubuntu.com/questions/426648/how-to-reinstall-pulseaudio-ubuntu-12-04
0a:00.4 Audio device [0403]: Advanced Micro Devices, Inc. [AMD]
Starship/Matisse HD Audio Controller [1022:1487]
Subsystem: ASUSTeK Computer Inc. Starship/Matisse HD Audio
Controller [1043:8733]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel