I'm not sure if I have the same issue, but with Kubuntu Natty 11.04 beta the gstreamer backend produces no sound at all, only the Xine backend works properly. My audio device is:
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
referred to as "Intel HDA (ALC889A Analog)" in the Multimedia->Phonon settings.
I'm not sure if I have the same issue, but with Kubuntu Natty 11.04 beta the gstreamer backend produces no sound at all, only the Xine backend works properly. My audio device is:
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
referred to as "Intel HDA (ALC889A Analog)" in the Multimedia->Phonon settings.