Revisiting Ubuntu and Trine 2 Audio Issue

I'm still running some tests on a possible solution to the problem.  I edited /etc/modprobe.d/alsa-base.conf and added the line: options snd-hda-intel model=auto.  We'll see if it works.

Losing sound on select games...

I've noticed that on some games, I lose sound not only on the game, but also on the entire desktop. It's an odd issue, but I believe I have finally found a possible cause. I have tried playing Natural Selection 2 and although I am happy that it comes with a Linux client, along with Trine 1 and 2, as well as Red Orchestra, the sound goes away until I reboot.

I decided to run ldd on it to see if there were clues. I noticed that when I compare it with games that don't exhibit this behaviour that NS2 has a link to libasound.so which I think is a sure sign that this is another one of those ALSA vs Pulse Audio conflicts.  I will do more research, but this is a theory that is making a lot of sense at the moment.