https://era86.github.io/2017/10/03/asus-zenbook-3-volume-controls.html
Fixing Volume Controls on the Asus ZenBook 3 (UX390UA) in Ubuntu 16.04
I recently purchased an Asus ZenBook 3 to replace my aging Thinkpad X220. Most things work right out of the box just fine, but I noticed the audio function...