$ lspci|grep -i audio
00:07.0 Audio device: nVidia Corporation MCP67 High Definition Audio (rev a1)
$ cat /proc/asound/card*/codec\#*|grep -i codec
Codec: Realtek ALC660-VD
Codec: Motorola Si3054
ASUS X50N laptop. Alap ubuntu installal nem ment a hang, kellett egy "options snd-hda-intel model=lenovo" a /etc/modprobe.d/alsa-base-be.