Audio via HDMI on Debian image 2016-01-24

I am unable to send audio over HDMI to my monitor.

The video is active over HDMI and the volume is turned up.

Results from various commands:

Debian Image 2016-01-24

0: PF---- -1
1: PF---- -1
2: PF---- -1
3: PF---- -1
4: P-O-L- 0 Override Board Name,00A0,Override Manuf,cape-universaln

I have also tried replacing overlay 4 with cape-univ-hdmi with same results.

cat /proc/asound/pcm
00-00: HDMI hdmi-hifi-0 : : playback 1 : capture 1

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Black [TI BeagleBone Black], device 0: HDMI hdmi-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0

“amixer -c 0” and “amixer -c 0 controls” has no output

“speaker-test -D plughw:0,0 -c2” creates no sound.

Thank you,

Note that only certain resolutions support Audio.


Thank you Gerald. I meant to include the partial listing of uEnv.txt:

#In the event of edid real failures, uncomment this next line:
cmdline=coherent_pool=1M quiet cape_universal=enable video=HDMI-A-1:1280x720@60e

Attached my android phone to the cable - it has a micro hdmi port - and listened to a youtube video on the monitor. The cable and monitor check out.

additional information:

amixer -c 0 info

Card hw:0 ‘Black’/‘TI BeagleBone Black’
Mixer name : ’ ’
Components : ’ ’
Controls : 0
Simple ctrls : 0

additional information:

aplay -L

Discard all samples (playback) or generate zero samples (capture)
TI BeagleBone Black,
Default Audio Device
TI BeagleBone Black,
Default Audio Device
TI BeagleBone Black,
Direct sample mixing device
TI BeagleBone Black,
Direct sample snooping device
TI BeagleBone Black,
Direct hardware device without any conversions
TI BeagleBone Black,
Hardware device with all software conversions

working with USB speakers, but not with HDMI audio.