Liviu Andronic wrote:
> On 9/20/09, Emanoil Kotsev <delop...@yahoo.com> wrote:
>> nothing is wrong - you may have many input/outputs. you have to figure
>> out
>> which controls are for the headphones. Unfortunately it depends on your
>> card. Mostprobably you have to assign the correct output to your
>> application.
>>
>> In alsamixer I see many headphone controls and if I plug into the
>> headphone jack it works fine
>>
> In the mixer (both alsa and xfce) I have only one "Headphones" volume
> control. Probably irrelevant, I also have "IEC958" switches and
> "IEC958 Playback Source" options; no idea what these are for.
>
> I am not familiar with JACK. I just tried starting it from qjackctl,
> but JACK failed to start.
>
>
>> amixer | grep Head
>> Simple mixer control 'Headphone',0
>> Simple mixer control 'Headphone as Line Out',0
>> Simple mixer control 'Headphone',1
>>
> li...@debian-liv:~$ amixer | grep Head
> Simple mixer control 'Headphone',0
>
> This is the relevant part from amixer:
> Simple mixer control 'Headphone',0
> Capabilities: pvolume pswitch
> Playback channels: Front Left - Front Right
> Limits: Playback 0 - 64
> Mono:
> Front Left: Playback 60 [94%] [-3.00dB] [on]
> Front Right: Playback 60 [94%] [-3.00dB] [on]
>
> As far as I can see here, the headphone levels are just fine. When
> headphones are plugged, though, the audio is simply not switched to
> these.
>
>
>> Also you can play with .asounrd
>>
>> # from http://alsa.opensrc.org/index.php/Dmix
>> pcm.headset { # playback only on frontpanel headset
>> type route
>> slave.pcm dmixer
>> slave.channels 8
>> ttable.0.0 1 # headphones front L
>> ttable.1.1 1 # headphones front R
>> }
>>
> Before I try this one, would there be anything I could with the first two?
> Thank you
> Liviu
When starting multimedia application it picks up the default audio device
which is not your headset output.
you can play with aplay -D ... man aplay and findout yourself which device
id the headphone one.
aplay -L
default:CARD=Intel
HDA Intel, STAC92xx Analog
Default Audio Device
front:CARD=Intel,DEV=0
HDA Intel, STAC92xx Analog
Front speakers
surround40:CARD=Intel,DEV=0
HDA Intel, STAC92xx Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
HDA Intel, STAC92xx Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
HDA Intel, STAC92xx Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
HDA Intel, STAC92xx Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
HDA Intel, STAC92xx Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Intel,DEV=0
HDA Intel, STAC92xx Digital
IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=Intel,DEV=0
HDA Intel, INTEL HDMI
HDMI Audio Output
null
Discard all samples (playback) or generate zero samples (capture)
so if i want to use 7.1 surround system I would use surround71 etc
regards
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