The problem was that my soundcard (hda intel) doesn't have hardware mixer, só I enabled software mixer in my .asoundrc, thorugh my hdmi sound on nvidia. Here is the file in case anyone need it in the future:
cat .asoundrc
pcm.dmixed {
type asym
playback.pcm {
type dmix
ipc_key 5678293
ipc_perm 0660
ipc_gid audio
slave {
channels 2 # make 6 or 5.1 channel
pcm {
format S16_LE # S32_LE
rate 48000 # can also be 44100
type hw
card 1 # your card
device 7 # your device
subdevice 0 #important?
}
period_size 1024
buffer_size 8192
}
bindings {
0 0
1 1
}
}
capture.pcm "hw:0"
}
pcm.!default {
type plug
slave.pcm "dmixed"
}
Nothing extracted yet.
Crimsomland has no sound whatsoever, while steam big picture and other games do. I have tested on 2 different hardware sets (desktop and laptop), and I can confirm it
s game-specific. Also, on both hardware sets, the game has perfect sound on Windows 7. Im using Gentoo with 4.05 kernel and nvidia proprietary drivers.