Why isn't my audio working in 11.04? If anyone knows, how can I fix it?
Be more specific. That could have a 100 causes. What do your logs say? What do the sound preferences say? Does your soundcard show in the device list? Is the problem limited to a few applications or a certain filetype / pysical output on your pc? Have you upgraded your system or is it freshly installed? Does the pulsaudio-daemon run?
I'm taking a wild guess here and say: It doesn't work in Amarok only. If so install libxine-gnome.