Sound troubles on Linux

Cross-posted from the lwjgl forums, but I’m guessing it’ll get more eyes over here:

Long story short, OpenAL seems pretty much broken on linux, at least for me. Using the PlayTest bundled with lwjgl to play this sample of white noise, this is what I hear.
I’ve just tested with Mootox, and the music there is similarly afflicted.

On the other hand, this joal demo works fine.

OpenAL renderer, version and vendor strings are “Software”, “0.0.8” and “J. Valenzuela”. I’m running the latest kubuntu release on an Inspiron 9300.

Has anyone encountered this before?

There’s nothing more annoying than finding forum posts from someone else having the same problem that you’re trying to solve, with no hint of a resolution or progress, so for posterity’s sake:

A solution has been found in this thread. There’s a replacement libopenal.so that fixes the choppiness, hopefully it’ll appear in the lwjgl releases soon.