Yes! Finally works with adding options snd-hda-intel model="olpc-xo-1_5" at the end of /etc/modprobe.d/alsa-base.conf. No PPA required :-).
Yes! d/alsa- base.conf. No PPA required :-).
Finally works with adding options snd-hda-intel model="olpc-xo-1_5" at the end of /etc/modprobe.