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Bug#690291: Amarok randomly stops playing sound when song automatically changes using phonon-backend-gstreamer



Package: phonon-backend-gstreamer
Version: 4:4.6.0.0-2
Severity: critical

When using phonon-backend-gstreamer, Amarok randomly stops playing sound at
song change. In that case, the time counter goes on for 3 seconds, then stops.

It seems completely random : it can happen at every song, or can play several
songs without stopping. Also, it occured only on automatic song change so far,
not on manual song change.

Note that only the sound output stops, all the rest of Amarok's interface is
still responsive; and sometimes, if you wait a couple of minutes or so, the
beginning of the song briefly plays for a second, and then both the sound and
the time counter abruptly jump quite precisely to where the time counter really
should be. In any case, manually changing song or position in the time counter
makes the music play again instantly.

This makes Amarok really unusable for music listening (let alone be used for a
party) thus breaking it severely as a music player. Using phonon-backend-vlc
gets rid of this problem, but it's not a satisfying workaround either, since it
have other problems : the impossibility of manipulating sound output volume -
completely breaking both replaygain and fade - and some crackling at the
beginning of playback. Both problems affect every software based on VLC (I
intend to submit another bug report about these issues if it hasn't been done
already).

Also please note that it doesn't seem to be a hardware-related problem, since
the two computers I use Amarok on (a manually assembled desktop PC, and a
Lenovo ThinkPad X200s laptop) present the same behavior.



-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (900, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-3-amd64 (SMP w/2 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages phonon-backend-gstreamer depends on:
ii  gstreamer0.10-alsa               0.10.36-1
ii  gstreamer0.10-plugins-base       0.10.36-1
ii  libc6                            2.13-35
ii  libgl1-mesa-glx [libgl1]         8.0.4-2
ii  libglib2.0-0                     2.32.3-1
ii  libgstreamer-plugins-base0.10-0  0.10.36-1
ii  libgstreamer0.10-0               0.10.36-1
ii  libphonon4                       4:4.6.0.0-2
ii  libqt4-opengl                    4:4.8.2+dfsg-2
ii  libqtcore4                       4:4.8.2+dfsg-2
ii  libqtgui4                        4:4.8.2+dfsg-2
ii  libstdc++6                       4.7.1-7
ii  multiarch-support                2.13-35

Versions of packages phonon-backend-gstreamer recommends:
ii  gstreamer0.10-plugins-good  0.10.31-3

Versions of packages phonon-backend-gstreamer suggests:
ii  gstreamer0.10-plugins-ugly  0.10.19-2+b2

-- no debconf information


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