On Wed, 2008-06-04 at 15:31 -0700, stan wrote:
> run aplay -lLv to see all of your sound cards and the PCMs defined
> for them.
>
> Then pick the PCM for this card that is 8 channels.
Thanks for the suggestion, I did make some progress. Here is the
output:
default:CARD=Intel
HDA Intel, ALC883 Analog
Default Audio Device
front:CARD=Intel,DEV=0
HDA Intel, ALC883 Analog
Front speakers
surround40:CARD=Intel,DEV=0
HDA Intel, ALC883 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
HDA Intel, ALC883 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
HDA Intel, ALC883 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
HDA Intel, ALC883 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
HDA Intel, ALC883 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Intel,DEV=0
HDA Intel
IEC958 (S/PDIF) Digital Audio Output
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=CMI8738
C-Media CMI8738, C-Media PCI DAC/ADC
Default Audio Device
front:CARD=CMI8738,DEV=0
C-Media CMI8738, C-Media PCI DAC/ADC
Front speakers
surround40:CARD=CMI8738,DEV=0
C-Media CMI8738, C-Media PCI DAC/ADC
4.0 Surround output to Front and Rear speakers
iec958:CARD=CMI8738,DEV=0
C-Media CMI8738, C-Media PCI DAC/ADC
IEC958 (S/PDIF) Digital Audio Output
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC883 Analog [ALC883 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: CMI8738 [C-Media CMI8738], device 0: CMI8738-SWIEC [C-Media PCI
DAC/ADC]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: CMI8738 [C-Media CMI8738], device 1: CMI8738-SWIEC [C-Media PCI
2nd DAC]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: CMI8738 [C-Media CMI8738], device 2: CMI8738-SWIEC [C-Media PCI
IEC958]
Subdevices: 1/1
Subdevice #0: subdevice #0
Card 0 is the onboard hda-intel device. -Dsurround71 plays perfectly out
of that device on all 8 channels. Unfortunately, the project I'm
working on needs to also support an older motherboard that only has a
intel-8x0 chip with 2 channels, hence the need for the PCI sound card.
For card 1, the only multichannel option I get is surround40, which gets
the front and rear speakers working, but no side or center channels.
I'm not sure why the card is being detected as a CMI8738. The chip is
labeled 8768/PCI-8ch, and I suppose it could simply be mislabeled, but
there are 4 analog speaker outputs in addition to the line in and mic.
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