Sorry for disappearing last time, I've been quite busy at the time. But I managed to find a bit more on my laptop's sound card and how to make it work. I've found two nodes that actually produce (some) sound when connected to a mixer. 0x1b pin complex is connected to front speakers and 0x16 to the center/LFE thingy. However, I can only get sound from them when I connect them to 0x0c and 0x0e mixers, that both (why?) output the sound from front channels. So, there's no mixer that outputs rear or LFE channels. To be honest, I don't understand anything further than this, so can someone please help me :) I'll try to be around on IRC most of the time. Also, my JID is k900@neko.im.
// Note: it seems my last mail was lost somewhere. Correct me if I'm wrong.