[pulseaudio-discuss] hard channel mapping issue

[Raymond Yau]

>
> I'm a bit stuck. On my system (chip AD1888 in a VIA 8237R) everything
> seems to be detected fine, but I only get front-right and front-left
> instead of 5.1. I configured "daemon.conf" to use a correct default
> mapping and later also "default.pa" to create a new sink with right
> mapping. However, even though all gui tools, and even 'pacmd list', show
> it all right, 'pactl stat' shows wrong device mappings in use:
>
> Server Name: pulseaudio
> Server Version: 4.0
> Default Sample Specification: s16le 6ch 44100Hz
> Default Channel Map: front-left,front-left-of-center,front-center,
>                      front-right,front-right-of-center,rear-center
> Default Sink: alsa_output.pci-0000_00_14.2.analog-surround-51
> Default Source: alsa_output.pci-0000_00_14.2.analog-surround-51.monitor
>
> When I use an own defined sink, this sticks to the HDMI-source and
> stereo, no matter what device I specify, i.e.:
>
> load-module module-alsa-sink sink_name=my_surround device=hw:1,0 \
> channels=6 \
> channel_map=front-left,front-right,rear-left,rear-right,front-center,lfe
>
> How can I get in sync the default and the chosen default setting?

How about

 speaker-test -c 6 -t wav -D surround51:CARD=VIA8237


**** List of PLAYBACK Hardware Devices ****
card 0: V8237 [VIA 8237], device 0: VIA 8237 [VIA 8237]
  Subdevices: 4/4
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3

seem have four DXS subdevices

http://git.alsa-project.org/?p=alsa-tools.git;a=blob;f=hwmixvolume/README;hb=HEAD

you have to post output of alsa-info.sh and pulseaudio verbose log

http://git.alsa-project.org/?p=alsa-lib.git;a=blob;f=src/conf/cards/VIA8237.conf;hb=HEAD

https://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/samples/VIA%208237--Analog%20Devices%20AD1888

seem "Master Surround Playback Volume" is not supported by pulseaudio

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/sound/pci/ac97/ac97_patch.c
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