What's going on here? I asked for the CMI8738, but I'm getting I/O errors from the nvidia device. At this point I'm completely lost.
Odd. Just to make sure (I've seen many seasoned pro's forget to plug in power for a device thought broken...); you are sure your alsa-dev libraries are all in place and of the correct version? Did you check what happens if you don't "suspend" PulseAudio? In my experience chuck-alsa connects just fine to PulseAudio, provided you are not also running something like Skype and/or a browser with a running Flash plugin. Those two tend to try to be compatible with very old drivers (good, I suppose) and in the meantime manage to not be compatible with running stuff like ChucK at the same time (bad). I suggest you drop the suspending of PA for a moment, close all browsers and Skype sessions, then try all likely DAC candidates again in turn. If anything interesting shows up I'd like you to post it to this list, as you did above. Hope that gets us a bit further; I hope we can get this to work because ChucK for game audio sounds quite exciting. Hope that helps, Kas.