#457: Pulseaudio cannot control my LFE volume
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Reporter: mini | Owner: lennart
Type: defect | Status: new
Priority: normal | Milestone:
Component: module-alsa-* | Severity: normal
Keywords: |
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I have a Dell XPS M1710 laptop. Though the sound card is only two channel,
there is a subwoofer underneatch the laptop, which has its own volume
control.
I can control this channel using alsamixer -c0.
However, I can't seem to get Pulseaudio to control that channel.
I tried manually:
load-module module-alsa-sink device=hw:0,0 channels=3 channel_map=front-
left,front-right,lfe
but pulse tells me:
W: alsa-util.c: Device hw:0,0 doesn't support 3 channels, changed to 2.
which I assume is because the channel only exists as a mixer control, not
a real sound channel.
Any help or advise welcome.
I'm using Ubuntu Jaunty (experimental).
amixer -c0:
$ amixer -c0
Simple mixer control 'Master',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 11 [35%] [-30.00dB] [on]
Front Right: Playback 11 [35%] [-30.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 255 [100%] [0.00dB]
Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'LFE',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 28 [90%] [-4.50dB] [on]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'IEC958 Default PCM',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 15
Front Left: Capture 0 [0%] [0.00dB] [on]
Front Right: Capture 0 [0%] [0.00dB] [on]
Simple mixer control 'Input Source',0
Capabilities: cenum
Items: 'Mic'
Item0: 'Mic'
Simple mixer control 'Mux',0
Capabilities: cvolume
Capture channels: Front Left - Front Right
Limits: Capture 0 - 4
Front Left: Capture 0 [0%] [0.00dB]
Front Right: Capture 0 [0%] [0.00dB]
aplay -l:
$ aplay -l
**** Lista över PLAYBACK hårdvaruenheter ****
kort 0: Intel [HDA Intel], enhet 0: STAC92xx Analog [STAC92xx Analog]
Underordnade enheter: 1/1
Underordnad enhet nr. 0: subdevice #0
kort 0: Intel [HDA Intel], enhet 1: STAC92xx Digital [STAC92xx Digital]
Underordnade enheter: 1/1
Underordnad enhet nr. 0: subdevice #0
--
Ticket URL: <http://www.pulseaudio.org/ticket/457>
PulseAudio <http://pulseaudio.org/>
The PulseAudio Sound Server
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