Comment 71 for bug 1315212

(In reply to Raymond from comment #57)
> Do surround21 , surround41 appear in
>
> aplay -L

null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
default:CARD=CA0106
    CA0106, CA0106
    Default Audio Device
sysdefault:CARD=CA0106
    CA0106, CA0106
    Default Audio Device
front:CARD=CA0106,DEV=0
    CA0106, CA0106
    Front speakers
rear:CARD=CA0106,DEV=0
    CA0106, CA0106
    Rear speakers
center_lfe:CARD=CA0106,DEV=0
    CA0106, CA0106
    Center and Subwoofer speakers
side:CARD=CA0106,DEV=0
    CA0106, CA0106
    Side speakers
surround21:CARD=CA0106,DEV=0
    CA0106, CA0106
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=CA0106,DEV=0
    CA0106, CA0106
    4.0 Surround output to Front and Rear speakers
surround41:CARD=CA0106,DEV=0
    CA0106, CA0106
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=CA0106,DEV=0
    CA0106, CA0106
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=CA0106,DEV=0
    CA0106, CA0106
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=CA0106,DEV=0
    CA0106, CA0106
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=CA0106,DEV=0
    CA0106, CA0106
    IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=CA0106,DEV=0
    CA0106, CA0106
    Direct sample mixing device
dmix:CARD=CA0106,DEV=1
    CA0106, CA0106
    Direct sample mixing device
dmix:CARD=CA0106,DEV=2
    CA0106, CA0106
    Direct sample mixing device
dmix:CARD=CA0106,DEV=3
    CA0106, CA0106
    Direct sample mixing device
dsnoop:CARD=CA0106,DEV=0
    CA0106, CA0106
    Direct sample snooping device
dsnoop:CARD=CA0106,DEV=1
    CA0106, CA0106
    Direct sample snooping device
dsnoop:CARD=CA0106,DEV=2
    CA0106, CA0106
    Direct sample snooping device
dsnoop:CARD=CA0106,DEV=3
    CA0106, CA0106
    Direct sample snooping device
hw:CARD=CA0106,DEV=0
    CA0106, CA0106
    Direct hardware device without any conversions
hw:CARD=CA0106,DEV=1
    CA0106, CA0106
    Direct hardware device without any conversions
hw:CARD=CA0106,DEV=2
    CA0106, CA0106
    Direct hardware device without any conversions
hw:CARD=CA0106,DEV=3
    CA0106, CA0106
    Direct hardware device without any conversions
plughw:CARD=CA0106,DEV=0
    CA0106, CA0106
    Hardware device with all software conversions
plughw:CARD=CA0106,DEV=1
    CA0106, CA0106
    Hardware device with all software conversions
plughw:CARD=CA0106,DEV=2
    CA0106, CA0106
    Hardware device with all software conversions
plughw:CARD=CA0106,DEV=3
    CA0106, CA0106
    Hardware device with all software conversions
default:CARD=PCH
    HDA Intel PCH, ALC889 Analog
    Default Audio Device
sysdefault:CARD=PCH
    HDA Intel PCH, ALC889 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    Front speakers
surround21:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Digital
    IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    Direct sample mixing device
dmix:CARD=PCH,DEV=1
    HDA Intel PCH, ALC889 Digital
    Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    Direct sample snooping device
dsnoop:CARD=PCH,DEV=1
    HDA Intel PCH, ALC889 Digital
    Direct sample snooping device
hw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    Direct hardware device without any conversions
hw:CARD=PCH,DEV=1
    HDA Intel PCH, ALC889 Digital
    Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC889 Analog
    Hardware device with all software conversions
plughw:CARD=PCH,DEV=1
    HDA Intel PCH, ALC889 Digital
    Hardware device with all software conversions
hdmi:CARD=NVidia,DEV=0
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
    HDA NVidia, HDMI 1
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
    HDA NVidia, HDMI 2
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 3
    HDMI Audio Output
dmix:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    Direct sample mixing device
dmix:CARD=NVidia,DEV=7
    HDA NVidia, HDMI 1
    Direct sample mixing device
dmix:CARD=NVidia,DEV=8
    HDA NVidia, HDMI 2
    Direct sample mixing device
dmix:CARD=NVidia,DEV=9
    HDA NVidia, HDMI 3
    Direct sample mixing device
dsnoop:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    Direct sample snooping device
dsnoop:CARD=NVidia,DEV=7
    HDA NVidia, HDMI 1
    Direct sample snooping device
dsnoop:CARD=NVidia,DEV=8
    HDA NVidia, HDMI 2
    Direct sample snooping device
dsnoop:CARD=NVidia,DEV=9
    HDA NVidia, HDMI 3
    Direct sample snooping device
hw:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    Direct hardware device without any conversions
hw:CARD=NVidia,DEV=7
    HDA NVidia, HDMI 1
    Direct hardware device without any conversions
hw:CARD=NVidia,DEV=8
    HDA NVidia, HDMI 2
    Direct hardware device without any conversions
hw:CARD=NVidia,DEV=9
    HDA NVidia, HDMI 3
    Direct hardware device without any conversions
plughw:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    Hardware device with all software conversions
plughw:CARD=NVidia,DEV=7
    HDA NVidia, HDMI 1
    Hardware device with all software conversions
plughw:CARD=NVidia,DEV=8
    HDA NVidia, HDMI 2
    Hardware device with all software conversions
plughw:CARD=NVidia,DEV=9
    HDA NVidia, HDMI 3
    Hardware device with all software conversions