I modified /etc/modprobe.d/blacklist.conf as: blacklist snd_hda_intel
I also tried from https://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architecture
pcm.!default {
type hw
card USB
}
ctl.!default {
type hw
card USB
}
Finally fixed :D !!!
Not sure the blacklisting is useful though.
