I’ve searched these forums (and other Alsa forums) but have had no luck.
Here is my debug log.
Passthrough works great.
I have been unable to get any non bitstream audio to be more than stereo. There is no audio output when I choose anything other than 2.0 for the speakers. Running speaker test fails unless it is in stereo. I’m not sure what’s going on here, but it seems like my sound card isn’t being detected properly.
speaker-test -D surround71 -c 8
speaker-test 1.1.9
Playback device is surround71
Stream parameters are 48000Hz, S16_LE, 8 channels
Using 16 octaves of pink noise
ALSA lib /media/cdu13a/9db0aa13-7627-4500-b867-3901c8b49d22/git/CoreELEC/build.CoreELEC-Amlogic.arm-9.2.5/alsa-lib-1.1.9/src/pcm/pcm.c:2564:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71
Playback open error: -2,No such file or directory
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: AMLM8AUDIO [AML-M8AUDIO], device 0: I2S.44 T9015-audio-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: AMLM8AUDIO [AML-M8AUDIO], device 1: SPDIF.45 dit-hifi-1 []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: AMLM8AUDIO [AML-M8AUDIO], device 2: PCM.46 pcm2bt-pcm-2 []
Subdevices: 1/1
Subdevice #0: subdevice #0
aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=AMLM8AUDIO
AML-M8AUDIO,
Default Audio Device
sysdefault:CARD=AMLM8AUDIO
AML-M8AUDIO,
Default Audio Device
hdmi:CARD=AMLM8AUDIO,DEV=0
AML-M8AUDIO,
HDMI Audio Output