[AppleOnbdAudio - SoundByLayout, playback] No sound at all

[Simon Baldwin]

When running Rhythmbox, no sound is produced when a music file is "played".

I get a thump sound from the OS and a pop-up message saying " Couldn't start playback - Failed to link GStreamer pipeline; check your installation"

I have tried purging and re-installing but the same problem continues.

When I start Rhythmbox from the terminal, I get this message:

(rhythmbox:21017): Gtk-WARNING **: Duplicate child name in GtkStack: Add to Playlist

(rhythmbox:21017): Gtk-WARNING **: Duplicate child name in GtkStack: Add to Playlist

(rhythmbox:21017): Gtk-WARNING **: Duplicate child name in GtkStack: Add to Playlist

(rhythmbox:21017): Gtk-WARNING **: Duplicate child name in GtkStack: Add to Playlist

(rhythmbox:21017): Gtk-WARNING **: Duplicate child name in GtkStack: Add to Playlist

(rhythmbox:21017): Gtk-WARNING **: Duplicate child name in GtkStack: Add to Playlist

(rhythmbox:21017): Rhythmbox-WARNING **: Unable to grab media player keys: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SettingsDaemon was not provided by any .service files

(rhythmbox:21017): Rhythmbox-WARNING **: minus one

I had this problem once before and I believe an update fixed it.

I am running Ubuntu Mate 16.04ppc on a Powerbook G4.
This is the current latest version of Rhythmbox on this platform.
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-109.132-powerpc-smp 4.4.98
Uname: Linux 4.4.0-109-powerpc-smp ppc
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: powerpc
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: simon 2322 F.... pulseaudio
CurrentDesktop: MATE
Date: Tue Jan 16 23:10:57 2018
InstallationDate: Installed on 2017-07-17 (183 days ago)
InstallationMedia: Ubuntu-MATE 16.04.1 LTS "Xenial Xerus" - Release powerpc (20160719)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SoundByLayout successful
Symptom_Card: KeyLargo/Intrepid Mac I/O - SoundByLayout
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: simon 2322 F.... pulseaudio
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: No sound at all
Title: [AppleOnbdAudio - SoundByLayout, playback] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)

[Simon Baldwin (smnbldwn)]

The automated part of the report wasgenerated using the command ubuntu-bug rhythmbox

All other sound works fine including other music players.