Samuel, I have set up a laptop, and found the same pcm2 is the one mastering the overall volume. Sadly, everytime I power on the laptop, I'm forced to open gnome-volumen-control and increase pcm2 level. Besides I want to be able to set Fn+F8, Fn+F9 keys to down and up the volume level, which currently they do for volume and not pcm2. Have you found any workaround to this problem? Regards, Manuel.