Bad news: I broke alsa-utils in Karmic.
Good news: I fixed it tonight. Please report your results.
Honestly, I tested the previous upload on Ubuntu, Kubuntu, and Xubuntu before committing to bzr -- even on different hardware! It just goes to show that I make dumb mistakes, so, sorry about that.
Mo' bett' news: many thanks to the awesome Tim Gardner, who imported alsa-driver stable (snapshot from 20091012) into ubuntu-karmic-lbm.git, which means that all you poor saps with eeePCs and HP dvs and Dell Studios will finally have less suck for audio. Granted, it will require installing linux-backports-modules-karmic in a week or so...
In other news (what?! there're more kinds?!), it really is decent to apologize when I make mistakes. This guy is a real gem, that is all.