Hardware volume control not working

[jlynton]

I have the same problem,Hardware volume control not working. Debug info here: https://pastebin.com/pys8AbCU

I can move the rotary volume control, and it stays wherever I leave it, but does not adjust the volume, which always stays at 100.

Hope you can help, many thanks
Jeremy

[hondagx35]

Hi Jeremy,

your settings in mpd.conf are wrong.

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audio_output {
    name        "snd_rpi_justboom_dac"
    type        "alsa"
    device      "hw:1,0"
    mixer_control   "PCM"
    auto_resample   "no"
    auto_format     "no"
}

"mixer_control" should be "Digital" not "PCM" in your case.

Frank

[jlynton]

Hello Frank,

I went to /etc/mpd.conf and saw a warning NOT to edit it manually, so I went to the MPD config section of the UI, but cannot find anywhere to change it.
Am I missing something, or should I go ahead and edit it manually?

Many thanks,

Jeremy

[edit] I went ahead and manually edited /etc/mpd.conf, after a reboot the entry in mpd.conf had reset itself from Digital to PCM. So it didn't help.[/edit]

[janui]

Hi jlynton,
Fist make a copy of the file /srv/http/db/redis_acards_details with the command:

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cp /srv/http/db/redis_acards_details /home/redis_acards_details

You can then copy it back if necessary. Then edit it with the command:

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nano /srv/http/db/redis_acards_details

Then look for the line containing

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//$redis->hSet('acards_details', 'snd_rpi_justboom_dac', '{"sysname":.....

Then remove the leading // on this line. It should then look like this:

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$redis->hSet('acards_details', 'snd_rpi_justboom_dac', '{"sysname":.....

Then exit nano with a <ctrl>o and then a <ctrl>x. Then execute the command:

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/srv/http/db/redis_acards_details

and reboot. Please report back with your results.
janui

[jlynton]

Good morning Janui,

I followed your excellent instructions, and it is now working perfectly!

Thank you so much for your help, I am so happy now I have my beloved RuneAudio back! And thank you also for all the great work that you do for this wonderful system.

Kind regards, Jeremy

[janui]

Hi jlynton,
Thanks for the testing and the feedback. I will include this change as soon as possible in the distribution code.
janui

[jlynton]

Hi jlynton,
Thanks for the testing and the feedback. I will include this change as soon as possible in the distribution code.
janui

Thank you Janui!
Now that I have 0.5b in a very usable state, I will be using it full time, and will let you know if I come across any more problems.
Jeremy

[konki]

Hello, I wonder if the arcam rdac is compatible with hardware volume control. The config file /srv/http/db/redis_acards_details

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$redis->hSet('acards_details', 'ARCAM USB Audio 2.0', '{"sysname":"ARCAM USB Audio 2.0","extlabel":"Arcam rDAC","mixer_numid":"3","mixer_control":"ARCAM Clock Selector","type":"usb"}');

thank's you for your opinion.

konki

[janui]

Hi konki,

...I wonder if the arcam rdac is compatible with hardware volume control...

It is set up with a hardware volume control. Looking back at the forum posts, the setup was last modified in 2015. No posts since, so it should still work fine.
janui

[konki]

Thank you again for your answer, the hardware volume control never worked with my arcam rDac, I was hoping for an incorrect configuration of MDP ...

konki