[pulseaudio-discuss] lost all but front L/R channels

Kyle Davenport kdavenpo at tx.rr.com
Sun May 9 21:08:28 PDT 2010

ok, I found it.  I had to go into alsamixer and change the default card 
of Pulseaudio to SBLive and then change the volume on the Surround 
control.   No idea why it was turned down to 13%.   This control is 
completely hidden from PulseAudio...

Also, I had to kill the pulseaudio server and run pavucontrol to get my 
hardware device back.

On 05/09/2010 05:29 PM, Kyle Davenport wrote:
> I had profile "Output Analog Surround 5.1 + Input Analog Stereo".  I
> also tried "5.0". This is pulseaudio-0.9.15. Perhaps this is a known
> issue addressed since then?
> I just tried switching to "Digital stereo output" and the hardware
> device disappeared! And now there is no way to switch back...
> On 05/09/2010 04:06 PM, Tomasz Torcz wrote:
>> On Sun, May 09, 2010 at 02:15:08PM -0500, Kyle Davenport wrote:
>>> I just realized I am only hearing sound out of my front Left and
>>> Right speakers. I'm not sure when this started - perhaps after
>>> upgrading to Fedora 11. I know in Fedora 10 I had analog from front
>>> and rear outputs of my SB Live. I can switch the cables on the
>>> sound cards and hear front signal out the rear speakers so I know
>>> it's happening within the card.
>> Well F11 is quite old and will receive updates for little over one
>> month only. Consider upgrade to F13 :)
>> As for your problem, what hardware profile do you have selected in
>> pavucontrol/gnome-volume-control? Is it really 4.0 or other multichannel?
>> Or maybe you have too old system to have profile selection in place...

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