rm ~/.config/kde.org/libphonon.conf

[Fathi Boudra]

> just a short note, that you should "rm ~/.config/kde.org/libphonon.conf"
> unless you have already configured your device preference via kcm_phonon. If
> the file is present you will not get the default ordering of audio devices
> which can result in getting pulseaudio on top (which is apparently broken
> for some installations).

the new order (alphabetical) will try to use alsa first but if it
fails, you can switch until pulseaudio:
"The audio playback device HDA Intel does not work. Falling back to pulseaudio."

cheers,

Fathi