From gnome bugzilla:
This is a problem with the sound driver and/or PulseAudio.
Please file a bug against your distribution.
** Also affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Changed in: gnome-media (Ubuntu)
Status: Triaged = Invalid
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cannot play
*** This bug is a duplicate of bug 532095 ***
https://bugs.launchpad.net/bugs/532095
** This bug has been marked a duplicate of bug 532095
Changing left/right balance in sound-preferences changes the output volume
slider
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cannot play sound only from one of speakers
*** This bug is a duplicate of bug 532095 ***
https://bugs.launchpad.net/bugs/532095
** Changed in: pulseaudio (Ubuntu)
Status: New = Confirmed
** Changed in: pulseaudio (Ubuntu)
Importance: Undecided = Low
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cannot play sound only from one of speakers
** Bug watch added: GNOME Bug Tracker #612268
https://bugzilla.gnome.org/show_bug.cgi?id=612268
** Changed in: gnome-media
Importance: Undecided = Unknown
** Changed in: gnome-media
Status: New = Unknown
** Changed in: gnome-media
Remote watch: None = GNOME Bug Tracker #612268
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** Changed in: gnome-media (Ubuntu)
Status: New = Triaged
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cannot play sound only from one of speakers
https://bugs.launchpad.net/bugs/533821
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gnome-media in ubuntu.
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** Summary changed:
- [lucid] cannot play sound only from one of speakers
+ cannot play sound only from one of speakers
** Changed in: gnome-media (Ubuntu)
Importance: Undecided = Low
** Also affects: gnome-media
Importance: Undecided
Status: New
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cannot play sound only from
