On Friday, 31 December 2021 17:03:07 GMT PeterMerchant wrote:
> On my desktop (Kubuntu 20.04)
>
> Amixer gives:
>
> peterm@peterm-MBB-34204H:~$ amixer
> Simple mixer control 'Master',0
> Capabilities: pvolume
> Playback channels: Front Left - Front Right
> Limits: Playback 0 - 31
> Mono:
> Front Left: Playback 31 [100%]
> Front Right: Playback 31 [100%]
> Simple mixer control '3D Control - Switch',0
> Capabilities: pswitch pswitch-joined
> Playback channels: Mono
> Mono: Playback [off]
> Simple mixer control 'PCM',0
> Capabilities: pvolume pswitch pswitch-joined cswitch
> Playback channels: Front Left - Front Right
> Capture channels: Front Left - Front Right
> Limits: Playback 0 - 31
> Front Left: Playback 24 [77%] [on] Capture [off]
> Front Right: Playback 24 [77%] [on] Capture [off]
> Simple mixer control 'Synth',0
> ...... and a whole bunch more
>
> I notice that the setup is different. Does it need to be 'pvolume' in
> yours?
The thing is Peter, command amixer without any parameters simply lists what
devices the machine has and what the alsa capabilities are for each device.
Your PCM sound device has the capability 'pvolume' and mine only has 'volume'.
AFAIK, I can't change those capabilities because they relate to the hardware
installed.
Don't forget that this code worked before I upgraded to bullseye.
--
Terry Coles
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