Hi folks,
I've had my pi for a year or so and decided it was time to have a go with the Mayfield audio. I'm running a fully-upgraded Lubuntu LTS 20.04 OS.
I have the full breakout board. I connected a new, tested and verified at 12V, regulated supply to the +12V / GND terminal block on the board, and two speakers to the L and R terminal blocks. I left my original 5V supply connected.
aplay -l
gives:
**** List of PLAYBACK Hardware Devices ****
card 0: Audio [Intel HDMI/DP LPE Audio], device 0: HdmiLpeAudio [Intel HDMI/DP LPE Audi]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Audio [Intel HDMI/DP LPE Audio], device 1: HdmiLpeAudio [Intel HDMI/DP LPE Audi]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Audio [Intel HDMI/DP LPE Audio], device 2: HdmiLpeAudio [Intel HDMI/DP LPE Audi]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Audio_1 [Mayfield Audio], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
but sudo speaker-test -D hw:1,0 -c 2 -r 48000 -t sine
is silent.
The PulseAudio pavucontrol can see the Mayfield and lets me direct playback to it, but nothing comes out.
The HDMI audio works fine:
sudo speaker-test -D hw:0,2 -c 2 -r 48000 -t sine
gives the expected tones.
Audio through BlueTooth is also fine.
?Do I need to insert a kernel module or something?
?Do I need to recompile the kernel?
?Am I missing something or doing something wrong?
?Failing those, is there some way to perform more debugging?
Do I need to tinker with the XMOS?
Any assistance anyone can give will be much appreciated. :-)
Joy
