non posso farci tanto

modifica quelle due righe come ti ho detto

poi alsaconf dovrebbe darti la scelta

incollami cosa hai in /etc/modules.autoload.d/kernel-2.6

e un lsmod

il file mettilo cosi

# ALSA portion
alias char-major-116 snd
# OSS/Free portion
alias char-major-14 soundcore

##
## IMPORTANT:
## You need to customise this section for your specific sound card(s)
## and then run `update-modules' command.
## Read alsa-driver's INSTALL file in /usr/share/doc for more info.
##
## ALSA portion
alias snd-card-0 snd-cmpci
alias snd-card-1 snd-emu10k1
## OSS/Free portion
## alias sound-slot-0 snd-card-0
## alias sound-slot-1 snd-card-1
##

# OSS/Free portion - card #1
##alias sound-service-0-0 snd-mixer-oss
##alias sound-service-0-1 snd-seq-oss
###alias sound-service-0-3 snd-pcm-oss
###alias sound-service-0-8 snd-seq-oss
##alias sound-service-0-12 snd-pcm-oss
## OSS/Free portion - card #2
## alias sound-service-1-0 snd-mixer-oss
## alias sound-service-1-3 snd-pcm-oss
## alias sound-service-1-12 snd-pcm-oss

##alias /dev/mixer snd-mixer-oss
##alias /dev/dsp snd-pcm-oss
##alias /dev/midi snd-seq-oss

# Set this to the correct number of cards.
options snd cards_limit=2


dai un env-update e un modules-update

e magari poi un
/mnt/gentoo/etc/init.d/alsasound restart