Public bug reported:
Binary package hint: pulseaudio
Since I upgraded to Ubuntu 9.04 amd64, all PulseAudio applications don't use
subwoofer anymore on my 5.1 sound card (C-Media CMI8738).
PulseAudio is configured 6 channel mode, and the order is checked OK by a
successful speaker-test : I can hear sound in each speaker at the right time,
and subwoofer/lfe is OK. PulseAudio volume meters are showing meters moving
synchronously with speaker-test, so it is OK.
BUT : VLC Pulse, Audacious with PulseAudio plugin, ogmtools, mpg123, etc...
don't use subwoofer any more when playing stereo. PulseAudio volume meters are
confirming that subwoofer is the only one to remain silent.
So PulseAudio seems to stop to mixing right and left channels into
subwoofer/lfe channel when a source with no explicit subwoofer/lfe
channel is playing. It is regression.
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
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PulseAudio is not mixing left/right channel anymore since jaunty
https://bugs.launchpad.net/bugs/386287
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