2010/7/15 Alexander Lam <lambchop468@gmail.com>
Sorry for the late response, I've been away. I've actually been trying to make my own ALC268 louder, so I've read up on hda architecture :P (I haven't been successful though)
card0 is a single HDA controller. an HDA controller is basically a dma controller that sends audio data to a codec connected to the HDA bus on that card. In this instance, you have two codecs connected to the same HDA controller, which means...
You won't see two sound cards in lspci because both sound codecs are on the same pci device.
This may be the fault of your terminal. Did you try amixer instead?
Well, amixer doesn't seem to show nothing relevant. Here is the output: http://pastebin.com/e7Xx7Gce. I don't see anything that I can't control with alsamixer. Also, everything is set to 100%.
Anyway, I highly recommend using reading http://www.alsa-project.org/main/index.php/Help_To_Debug_Intel_HDA and using the HDA-Analyzer utility mentioned there - you can mess with your codecs manually to try to get louder sound.
I've read it quickly... What should I look for? What should I tweak? I don't know those things very well. Anyway, right know I'm downloading Ubuntu to see if the sound is louder in this distribution. I haven't tested any OS but Arch Linux.
-- Alexander Lam
-- Rafael Beraldo http://cabaladada.org