On 2013-02-11 17:17, Risto Suominen wrote: > Hi Antonis, > > Is snd_powermac included in /etc/modules? Yes (actually snd-powermac, with a hyphen). > Are there any snd_aoa (or snd-aoa) related modules blacklisted in > /etc/modprobe.d/*? There should be. Yes, there are five snd-aoa modules in /etc/modprobe.d/blacklist.local.conf