I installed the optional dependencies. # pacman -Syu libffado dbus-core python2 Targets (4): libxml++-2.34.2-1 dbus-core-1.6.4-1 libffado-2.0.1-7 python2-2.7.3-2 Only the missing FFADO lib output disappeared, all the other output seems to be the same as before. FWIW I'll reboot, if I shouldn't write an additional mail, than the reboot didn't improve a thing.