I'm having the same problem, a temporary solution would be going into KControl -> Sound & Multimedia -> System Notifications -> Player Settings and change it from using the KDE sound system to using an external player and put in 'artsplay'.
That fixes the problem for me, but now all my sounds are really loud (and extremely annoying because watching a movie at a reasonable volume and if I get an IM it hurts my ears its so loud).
EDIT: I just noticed that normal wav files work without using my method, so for some reason it seems ours can't play OGG files. What distro are you using? I'm running Gentoo and have KDE 3.4.1.
EDIT2: Turns out the bug I'm having (volume <100% for notifications) was reported on bugzilla and a patch has been created and should be included in KDE 3.4.2.
This post has been edited 2 times, last edit by "SirTalon" (Jul 28th 2005, 3:28am)
Does arts work on your system? If so that should work. If it doesn't then it sounds like it could be a problem with artsd. To make sure it isn't KNotify, change the command to execute to something like kdialog --msgbox "Notifications work", then if it executes the command you should get a popup box saying that notifications work.
Originally posted by SirTalon
EDIT: I just noticed that normal wav files work without using my method, so for some reason it seems ours can't play OGG files. What distro are you using? I'm running Gentoo and have KDE 3.4.1.