Arch Linux

ennui

Member

Registered: 2010-08-23

Posts: 21

Incomplete ALSA support for Cirrus Logic CS4206 chip?

Hey gang! First a bit about my system. I'm running the 2.6.35-ARCH kernel on my macbook pro 5,5 which has an HDA NVidia soundcard with a Cirrus Logic CS4206 chip. I have my audio playback working through ALSA (arch packages alsa-lib, alsa-oss, alsa-utils, alsa-plugins) and have installed jack2-svn, qjackctl, and ardour3-svn.

My goal for the time being is to be able to track on ardour, recording from my internal mic. (I have an audio interface but no other mic at the moment) I know this is less than ideal but I just want to be able to record so I can start learning ardour while I save for a mic

My Problem seems to be with ALSA. I can get my jack server up and running, and Ardour recognizes it and makes the connection. (unlocking my memory is something else I need to figure out). Ir have tried every combination of input/out configurations for my master, and initial audio track but I when I do hear input from my mic it always is with the same quirks. There is a large amount of hiss and distortion of with audio, the level meter never changes as if ardour doesn't think anything audio is playing, and when ardour records this distorted input no waveform is shown but the sounds do playback (and once again no movement of the level meters).

Now this is what my alsamixer looks like with F5 (view all):
http://img101.imageshack.us/img101/6092/alsamixer.png

It would seem that I have no input device selection abilities in the mixer. I can change the the volume of capture and turn on and off the left and right channels of the capture. (in the screen I understand that only the left channel is on. it just created less distortion this way). But the same problems persist in ardour. Obviously wrong somewhere in this chain of processes!
Does anyone have any ideas? Thanks so much for your time!