Soppel, I don't know how to deal with IRQ too, Maybe i will try to check because it seems to be an important stuff.
I checked your link but ,the part that interesting me, seems to not correspond to the files present on AVLinux. example:
~$ cat /etc/conf.modules
cat: /etc/conf.modules: No such file or directory
I don't want my NVidia to be blacklisted, this is the only one real soundcard I have
For the moment it's enough for the weird small piece of music I do
Other "soundcards" detected by the system are my midi controllers. And I don't want them to be blacklisted too.
Otherwise, I tried to improve wath I did before. Updating alsa-base.conf.
I added two line to "# Prevent abnormal drivers from grabbing index 0" like it is wrote in the comment above.
#added by me to select default card
options LPD8 index=-2
options nanoKONTROL index=-2
options NVidia index=0
It's not perfect, sometimes it fails but it seems to improve. I tried to reboot maybe 10 or 12 times and it only failed 2 times.