[pulseaudio-discuss] Why PA does not show me sinks for surround audio output?

[Lin, Mengdong]

The sound card on my desktop supports 5.1 sound output, but PA only show one sink for the 2-channel front speaker. Why? Is it mean that PA cannot support surround output by default?



The default sample channels and channel map are commented in /etc/pulse/daemon.conf:

;default-sample-channels =2

;default-channel-map= front-left,front-right



It seems the card has no profiles for surround output, by "pacmd list-cards":

profiles:

                   output:analog-stereo: Analog Stereo Output (priority 6000)

                   output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6060)

                   input:analog-stereo: Analog Stereo Input (priority 60)

                   off: Off (priority 0)



Here is the playback device names I got by "aplay -L"

front:CARD=Intel,DEV=0

    HDA Intel, ALC662 rev1 Analog

    Front speakers

surround40:CARD=Intel,DEV=0

    HDA Intel, ALC662 rev1 Analog

4.0 Surround output to Front and Rear speakers

surround41:CARD=Intel,DEV=0

    HDA Intel, ALC662 rev1 Analog

4.1 Surround output to Front, Rear and Subwoofer speakers

surround50:CARD=Intel,DEV=0

    HDA Intel, ALC662 rev1 Analog

5.0 Surround output to Front, Center and Rear speakers

surround51:CARD=Intel,DEV=0

    HDA Intel, ALC662 rev1 Analog

5.1 Surround output to Front, Center, Rear and Subwoofer speakers

surround71:CARD=Intel,DEV=0

    HDA Intel, ALC662 rev1 Analog

7.1 Surround output to Front, Center, Side, Rear and Woofer speaker




Many thanks
Mengdong
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20111031/e1e128c4/attachment.htm>