I have the same issue and almost the same audio controller
I've been trying to fix this for some time now, and I've been unsucessful. I've tried recompiling ALSA and even replaced some libraries.
0000:00:1b.0 0403: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03)
I had the same issue with Neverwinter Nights though, and the solution for that was to copy the SDL / OpenAL libraries from /usr/lib over the libraries in the NWN directory. Maybe this can solve the UT issue?