> Perhaps it's related to resampling? Does it happen with all audio files > or only certain ones? > > You could try and edit /etc/pulse/daemon.conf and change the > resample-method to e.g. "trivial". If the problem is related to > resampling, this should reduce the CPU burden. > > Other than that I'd go for some driver issues as Daniel outlined. > > Col > I run Debian GNU/Linux Squeeze/testing. My software versions are as follows: $ pulseaudio --version pulseaudio 0.9.21-rebootstrapped-dirty $ kwin --version Qt: 4.6.3 KDE Development Platform: 4.4.5 (KDE 4.4.5) KWin: 4.4.5 (KDE 4.4.5) I don't feel like installing too much software from outside the repositories. It is too much of a hassle for me to maintain. I believe kwin is responsible for the screen effects in KDE. I will try changing the resample method, and see what happens. ;)Frode -- Da sa Gud: "Det bli lys!" Og det ble lys. ? ? ? ? ? ? ? ? ? ? ? 1. Mosebok 1.3 And God said, "Let there be light," and there was light. ? ? ? ? ? ? ? ? ? ? ? Genesis 1:3, NIV