pavucontrol missing pulseaudio "Digital Surround" output profiles

[Yfrwlf]

Binary package hint: pavucontrol

I get all the analogue surround options (except for 7.1 but that is a different and already known issue), but the only digital output (IEC958) options I get are a few "Digital Stereo" options, but none of the surround sound options. The strange thing is, the center channel is working, I can do test outputs to all three front speakers. However, I've verified none of the rear speakers are working (they should be as they work with other things).

I'm pretty sure all that is missing here are proper Pulseaudio profiles for digital + surround speaker setups. Does anyone know if this is coming for Lucid Lynx or if there is a way to manually add these profiles? Ubuntu doesn't make a very good HTPC without rear speakers. :)

Thanks.

[Jeffrey Borck (jborck)]

I've got the same problem here. Onboard audio (VIA VT1708S) detects fine, but my PCI board (CMedia 8738-based) generates a bunch of profiles that don't seem to work as one would expect.

I can confirm that the ALSA mixer (gnome-alsamixer) sees and controls the hardware properly, but gnome-volume-control doesn't seem to control much. Pulse generates 20 profiles of varying configurations, but only about 2 or 3 work properly.

Any suggestions on how to edit these profiles or reconfigure them?

[Chronos (chronos00)]

Any news on this subject?

I am trying to use Optical digital output to a surround system, but I don't see the correct profile.
Is there any work-around, at least?

(The system is running Lucid Lynx)

Thank you!

[Yfrwlf (yfrwlf)]

I'm assuming that while having the digital stereo profile selected, the left and right rear speakers will only duplicate the left and right front speakers. If that's true, to have true 5.1 surround sound on desktop and home theater set-ups, users will have to use analogue outputs until this bug is fixed.