[pulseaudio-discuss] librem5 sound

Angus Ainslie angus at akkea.ca
Fri Dec 6 15:51:43 UTC 2019

Thanks for the latency suggestions. We added those patches to pulseaudio 
12.2 and it's working well.


Now I'm trying to map the correct alsa mixer for pulseaudio volume 
control. I tried setting PlaybackMixerElem element but it doesn't seem 
to be affecting the alsa mixer.


purism at pureos:~$ amixer -c 1 sget Speaker
Simple mixer control 'Speaker',0
   Capabilities: volume pswitch
   Playback channels: Front Left - Front Right
   Capture channels: Front Left - Front Right
   Limits: 0 - 127
   Front Left: 122 [96%] [1.00dB] Playback [on]
   Front Right: 122 [96%] [1.00dB] Playback [off]

I tried setting it to

PlaybackMixerElem "name='Speaker Volume'"


PlaybackMixerElem "Speaker Volume"

and neither seemed to affect the alsa mixer volume. Am I setting the 
wrong ucm_id or am I setting it incorrectly ?

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