Hi, head -n 1 /proc/asound/card0/codec* gives: ==> /proc/asound/card0/codec#0 <== Codec: Realtek ALC662 rev1 ==> /proc/asound/card0/codec#3 <== Codec: Nvidia MCP7A HDMI maybe this helps to understand the problem? Regards Halim -- Halim Sahin E-Mail: halim.sahin (at) t-online.de