[Bug 562310] [NEW] Phonon never uses PulseAudio backend

Alex Wauck alex.wauck+lp at gmail.com
Tue Apr 13 14:07:39 UTC 2010

Public bug reported:

If I select PulseAudio output for Phonon, the stream coming in to
PulseAudio (according to pavucontrol) comes from the PulseAudio ALSA
plugin, not directly from Phonon.  This may be the reason Amarok crashes
on startup when using the GStreamer backend (see KDE bug #232068).

The problem of Phonon audio output reaching PulseAudio by way of ALSA is
also present in the Xine backend, but this does not cause applications
to crash.  However, the Xine backend does not play certain FLAC files

The reason I am reporting this here instead of upstream is that ubuntu-
bug recognizes libphonon4 as being part of qt4-x11, so it seems that
Ubuntu is using Phonon from Qt4.  Colin Guthrie says
(https://bugs.kde.org/show_bug.cgi?id=232068#c3) that the correct Phonon
to use is the one from Gitorious (presumably
http://gitorious.org/phonon), not the one from Qt4.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: libphonon4 4:4.6.2-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.32-20.29-generic
Uname: Linux 2.6.32-20-generic x86_64
Architecture: amd64
Date: Tue Apr 13 09:55:01 2010
EcryptfsInUse: Yes
InstallationMedia: Kubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
 PATH=(custom, user)
SourcePackage: qt4-x11

** Affects: qt4-x11 (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: amd64 apport-bug lucid

Phonon never uses PulseAudio backend
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