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I'm running Xubuntu 15.04 (vivid), and have a few KDE apps installed (kdevelop, konqueror). I would like to disable their notification sounds.
I know that this issue has been discussed before, and that KDE behaviour is usually managed through systemsettings. I have installed the package, unfortunately there's only one entry, Appearance → Application style.
So the question would be: How do I get the entry for managing the sounds? Or is there another way to disable the notification sounds?
Ok, apparently the systemsettings shipped by (X)Ubuntu 15.04 is for KDE 5. This means that control center modules for KDE 4 don't show up there.
They can be loaded through the kcmshell4 command. In my case, it was
kcmshell4 kcmnotify
Then go to “Player settings” → “No audio output”.
Silence.