Grimrock

I added my HumbleBundle purchases to the Ubuntu Software and used that to install Legend of Grimrock (mainly to simplify updates, though I'd prefer to use Steam. However when I run the game I get absolutely no sound whatsoever. Sound is fine in other games and applications.

Console output is in pastebin: http://pastebin.com/QWJXrLsG

I also notice that it doesn't cleanly exit and I have to kill -9 the process. The game appears to play fine otherwise.