Stopping multiple soundcards from switching

I recently got a problem with my X-fi soundcard switching identification number with my ATI HDMI. I use 2:0 in my configuration. But this do not work always as the id is "randomly" assigned.

Solution:
cat /proc/asound/modules
sudo gedit /etc/modprobe.d/alsa-base

At the bottom add the following lines:
options snd_hda_intel index=0
options cx88_alsa index=1
options snd_ctxfi index=2

Where the names (snd_hda_intel...) is those you did get from the first command (cat...) It is not necessarily three as in my case.

Here is the original solution: http://ubuntuforums.org/showthread.php?t=205449