When running Crouton/Ubuntu 12.0 LTS + Unity, I'm having a minor issue with audio running under ChromeOS while actively using Unity. I can start up a Google Play Music or Spotify app tab, and play something. I flip back into Unity, and the music keeps playing for a few minutes, and then pauses itself. As soon as I flip back into ChromeOS, the audio starts playing again immediately, right where it left off.
This a pretty minor problem, but if anyone knows what might be going on here, I'd appreciate it. I haven't found any reports of this particular behavior, though the audio issues other people have reported seem to be a lot more severe than this, so I guess I'm lucky.