alsa-project/alsa-ucm-conf issue #395 was opened from Acer6920: Greetings, back audio is working the sound card is recognized as Generic USB Audio 3 [Audio ]: USB-Audio - USB Audio Generic USB Audio at usb-0000:00:14.0-11, high speed alsa information: http://alsa-project.org/db/?f=655312de1f9b11ddc33de5fa41c6cad87bcbab9d if i missed something excuse it please i use zorin os/linux since yesterday and need some advice if you need more information. thanks a lot. ace Issue URL : https://github.com/alsa-project/alsa-ucm-conf/issues/395 Repository URL: https://github.com/alsa-project/alsa-ucm-conf