environment

PC : Lenovo Thinkpad T14 Gen1 AMD CPU : AMD Ryzen 7 4750U RAM : 48GB OS : Ubuntu 20.04 Kernel : 5.4.0-53-generic

solution

Execute the following and restart

sudo add-apt-repository ppa:hui.wang/pa-testing
sudo apt install libasound2

reference

https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1901157/comments/12 https://askubuntu.com/questions/1291047/dummy-audio-on-thinkpad-t14-amd

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