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openairplay / airplay2-receiver

AirPlay 2 Receiver - Python implementation
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amixer: Unable to find simple control 'PCM',0 #48

Closed najihun closed 3 years ago

najihun commented 3 years ago

Thank you for contribution!

tried this receiver on my RP3, but got an issue as below.

Checked amixer on my RP3 there is only 'Master' not 'PCM'

Think if I could change the audio source(?), then docker can be run.

Is there any way to custom and fix ?

amixer: Unable to find simple control 'PCM',0

Traceback (most recent call last): File "ap2-receiver.py", line 1108, in setup_global_structs(args) File "ap2-receiver.py", line 273, in setup_global_structs volume = get_volume() File "/airplay2/ap2/utils.py", line 94, in get_volume line_pct = subprocess.check_output(["amixer", "get", "PCM"]).splitlines()[-1] File "/usr/lib/python3.7/subprocess.py", line 395, in check_output **kwargs).stdout File "/usr/lib/python3.7/subprocess.py", line 487, in run output=stdout, stderr=stderr) subprocess.CalledProcessError: Command '['amixer', 'get', 'PCM']' returned non-zero exit status 1.