Debian User Forums

Go figure, but if I run:
speaker-test -Dhw:CARD=Black,DEV=0 -t sine -c2

I get sound from the HDMI channels now. I had tried every device on the list below:

null
Discard all samples (playback) or generate zero samples (capture)
onboard
onboard_playback_front
onboard_capture_left
onboard_playback_left
onboard_capture_right
onboard_playback_right
plug_onboard_capture_left
plug_onboard_playback_left
plug_onboard_capture_right
plug_onboard_playback_right
default
sysdefault:CARD=Black
TI ...

Hi, I've been pulling my hair out for a while. Seems like I am not getting to the correct alsa config file. My goal is to be able to play stereo data on both card 0 (beaglebone HDMI) and card 1, USB audio adapter, separately. if I get card 0 working, then I will pull out card 1 and use the I2S data from the HDMI to drive external DACS directly.

I have Card 0 and Card 1 as below. Both cards work with speaker test except card 0, HDMI from a beaglebone Black, will only play one channel or the ...