R-Car/Boards/Yocto-Gen3-CommonFAQ/The error message "amixer: Unable to find simple control 'DVC Out',0" is shown in Kingfisher Yocto BSP.

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The error message "amixer: Unable to find simple control 'DVC Out',0" is shown in Kingfisher Yocto BSP.

Ex)

$  amixer set "DVC Out" 1%
amixer: Unable to find simple control 'DVC Out',0

Kingfisher Yocto BSP uses a pulseaudio.
The volume control of R-Car Starter Kit (CN8) is as follow.

$ amixer -c 1 sset "DVC Out" 20%

[How to playback from R-Car Starter Kit (CN8) when using Kingfisher Yocto BSP]

$ pactl set-default-sink ak4613_output
$ speaker-test -c 2 -t wav -W /usr/share/sounds/alsa/

See also: