Triode wrote:
> Re volume levels. The new image includes alsa utils - it is worth
> checking whether this impacts any hardware volume level with alsamixer.
Looks to me that this is due to alsa-utils (which actually installs
quite a lot...). It only impacts alsa devices with volume controls, but
for the wandboard default analog output we get@
With alsa-utils installed and alsactl called startup (no config
though):
Code:
--------------------
[root@soa-wandboard ~]# amixer
Simple mixer control 'Headphone',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 127
Mono:
Front Left: Playback 65 [51%] [-19.00dB]
Front Right: Playback 63 [50%] [-20.00dB]
Simple mixer control 'Headphone Mux',0
Capabilities: enum
Items: 'DAC' 'LINE_IN'
Item0: 'DAC'
Simple mixer control 'Headphone Playback ZC',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 192
Mono:
Front Left: Playback 144 [75%]
Front Right: Playback 144 [75%]
Simple mixer control 'Mic',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 3
Mono: 2 [67%] [30.00dB]
Simple mixer control 'Capture',0
Capabilities: cvolume
Capture channels: Front Left - Front Right
Limits: Capture 0 - 15
Front Left: Capture 12 [80%]
Front Right: Capture 12 [80%]
Simple mixer control 'Capture Attenuate Switch (-6dB)',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 2
Mono: 0 [0%]
Simple mixer control 'Capture Mux',0
Capabilities: enum
Items: 'MIC_IN' 'LINE_IN'
Item0: 'MIC_IN'
Simple mixer control 'Capture ZC',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
--------------------
Without alsa-utils installed and used to set state on reboot via
alsactl:
Code:
--------------------
[root@soa-wandboard ~]# ./amixer
Simple mixer control 'Headphone',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 127
Mono:
Front Left: Playback 103 [81%] [0.00dB]
Front Right: Playback 103 [81%] [0.00dB]
Simple mixer control 'Headphone Mux',0
Capabilities: enum
Items: 'DAC' 'LINE_IN'
Item0: 'DAC'
Simple mixer control 'Headphone Playback ZC',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 192
Mono:
Front Left: Playback 192 [100%]
Front Right: Playback 192 [100%]
Simple mixer control 'Mic',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 3
Mono: 2 [67%] [30.00dB]
Simple mixer control 'Capture',0
Capabilities: cvolume
Capture channels: Front Left - Front Right
Limits: Capture 0 - 15
Front Left: Capture 0 [0%]
Front Right: Capture 0 [0%]
Simple mixer control 'Capture Attenuate Switch (-6dB)',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 2
Mono: 0 [0%]
Simple mixer control 'Capture Mux',0
Capabilities: enum
Items: 'MIC_IN' 'LINE_IN'
Item0: 'MIC_IN'
Simple mixer control 'Capture ZC',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
--------------------
I am tempted to remove alsa-utils for the moment and perhaps include
some subset of amixer in squeezelite to adjust any hardware volume.
Does this seem sensible?
------------------------------------------------------------------------
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View this thread: http://forums.slimdevices.com/showthread.php?t=101624
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