We should always at least tell if a problem is solved, or not !
I have a similar problem, but with a Amp2 HifiBerry card, and a WiFi access-point activated. All other configuration is identical. Error message in mpd.log is very simple : „Failed to open Alsa Mixer…“, without anymore specificities. I can change the volume from the Raspberry config tab, but not from YMPD.
Hello,
I’ve a similar problem with the same config. Well, it is not a multi-room, only a simple player with MPD and speakers wired to HifiBerry Amp+.
No Kodi installed – or not visible.
mpd.log shows this :
Apr 23 10:32 : avahi: Service 'Music Player' successfully established.
Apr 23 10:32 : client: [0] opened from 127.0.0.1:53234
Apr 23 10:32 : alsa_mixer: Failed to read mixer for 'Max2Play ALSA Device': failed to attach to hw:0;0: No such device
mpd.conf contains only one audio_output, which is :
audio_output {
type "alsa"
name "Max2Play ALSA Device"
device "default:CARD=sndrpihifiberry"
format "192000:24:2"
mixer_device "hw:0;0"
mixer_control "PCM"
}
Using hw:0,0 for mixer_device produces the same result.
I can not change the volume.
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