[pulseaudio-discuss] surround sound

[pl bossart]

> However, I see that my channels are still at two:
>
> $ pactl list
> [snip]
> Sink #0
>        State: SUSPENDED
>        Name: alsa_output.pci-0000_02_09.0.analog-stereo
>        Description: CS 4614/22/24/30 [CrystalClear SoundFusion Audio
> Accelerator] Analog Stereo
>        Driver: module-alsa-card.c
>        Sample Specification: s16le 2ch 44100Hz
>        Channel Map: front-left,front-right
>
> Do I need to configure alsa for 5.1 sound as well as PA?

Looks like your card is not detected as multichannel. PulseAudio will
try several profiles (see src/modules/alsa/mixer). For some reason it
is stuck here to analog stereo.
Either the detection does not work (see the log), or maybe you need to
select a different default profile with pavucontrol (on the
configuration tab).