According to https://askubuntu.com/questions/1056909/no-sound-on-asus-zenbook-ux391ua-with-hda-intel-pch , another user have the same problem as me.
According to https:/ /askubuntu. com/questions/ 1056909/ no-sound- on-asus- zenbook- ux391ua- with-hda- intel-pch , another user have the same problem as me.