[kde-linux] No sound with phonon and kde4.1

[SeaJey]

It is simple task to configure kde 3.5.x to use OSS v4-output from the sound  
section of kcontrol. 
Now I'm using kde 4.1 and have no sound, exept amaroK 1.4 and smplayer. 

I've installed phonon's gstreamer backend and set it to default, launched  
qtconfig - in phonon tab all options are inactive

How can I  force phonon to work with Open Sound System?  ALSA is not help for 
me.

System: kubuntu 8.04 i386 KDE4 
Audio driver: OSS 4.0 Build 1016 
Soundcard: M-Audio Revolution 5.1