I have an ASUS M3N78-VM motherboard with onboard nVidia audio, including HDMI audio output. My goal is to send all audio output over the HDMI connector, eventually passing ac3 to a stereo. I'm trying out a recent version of sound-2.6.git for the support of the nVidia HDMI codec and have compiled alsa-utils 1.0.18.
# uname -r 2.6.28-rc7-00437-g880746b I believe I've correctly compiled the kernel with the correct driver and codecs (VIA and NVIDIA selected). The output from `aplay -l` shows the two devices I expected to see # aplay -l **** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: VT1708B Analog [VT1708B Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI] Subdevices: 1/1 Subdevice #0: subdevice #0 But `aplay -L` doesn't show any iec958/spdif/hdmi device name, which from my online searches, I was expecting to see. # aplay -L default:CARD=NVidia HDA NVidia, VT1708B Analog Default Audio Device front:CARD=NVidia,DEV=0 HDA NVidia, VT1708B Analog Front speakers surround40:CARD=NVidia,DEV=0 HDA NVidia, VT1708B Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=NVidia,DEV=0 HDA NVidia, VT1708B Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=NVidia,DEV=0 HDA NVidia, VT1708B Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=NVidia,DEV=0 HDA NVidia, VT1708B Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=NVidia,DEV=0 HDA NVidia, VT1708B Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers null Discard all samples (playback) or generate zero samples (capture) I see digital playback listed twice in the /proc fs: # cat /proc/asound/devices 0: [ 0] : control 16: [ 0- 0]: digital audio playback 19: [ 0- 3]: digital audio playback 24: [ 0- 0]: digital audio capture 33: : timer and alsamixer shows an IEC958 control, which is unmuted along with everything else, yet I get no sound out. I have tried specifying hw=0,0 and hw=0,3 and am unable to play sound out either the HDMI connector or the optical SPDIF connector. Can anyone identify what I'm doing wrong? alsa-info.sh http://www.alsa-project.org/db/?f=2d19d52ccb307fb29407d2f5dae944d79d8d571a Thanks in advance for any help you can offer. ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
