Re: defining sound card in xorg.conf

["Yan Seiner" <yan@xxxxxxxxxx>]

You can do something similar with alsa + udev; you just have to create
fixed device names using udev, and then write a script that sets the
default alsa device to the appropriate fixed name based on the DISPLAY
variable.


On Mon, June 18, 2012 8:00 am, StompDagger1@xxxxxxxxx wrote:
> Thanks for the input but using pulseaudio is not an option.
>
>  
> An wise Scandinavian old man once said: "in the end, everything is going
> to be alright"
>
>
> ________________________________
>  From: linux-service.be bvba <guy@xxxxxxxxxxxxxxxx>
> To: xorg@xxxxxxxxxxx
> Sent: Monday, June 18, 2012 5:56 PM
> Subject: Re: defining sound card in xorg.conf
>
> start such script when user is logging in:
>
> #!/bin/bash
>
> # in order to match a screen-set to a pulseaudio sink :
>
> if [ "$DISPLAY" ]
> then
>     if [ "$DISPLAY" = ":1" ]
>     then
> sleep 3
>       pacmd "set-default-sink
> alsa_output.usb-0d8c_C-Media_USB_Headphone_Set-00-Set_1.analog-stereo"
> pulseaudio -D
>     fi
>     if [ "$DISPLAY" = ":2" ]
>     then
> sleep 3
>         pacmd "set-default-sink
> alsa_output.usb-0d8c_C-Media_USB_Headphone_Set-00-Set.analog-stereo"
> pulseaudio -D
>     fi
> if [ "$DISPLAY" = ":3" ]
>     then
> sleep 3
>         pacmd "set-default-sink
> alsa_output.usb-0d8c_C-Media_USB_Headphone_Set-00-Set_2.analog-stereo"
> pulseaudio -D
>     fi
> fi
>
>
> ofcourse edit script with your sound devices and find out where the sound
> is going to( at which display).
> Make sure the user's /home/user/.pulse is empty upon login.
> Enjoy
> guy
>
>> Hi,
>> Actually it goes out of scope space of X.
>> You should ask to sound system developers, how i can set default sound
>> card according to my environment variables with multiple sound cards
>> on board.
>>
>> Here is little outdated link:
>> http://perso.nnx.com/pludov/sessiond/
>>
>> This tool will replace sound device files like /dev/dsp* with links to
>> each sound card files
>> depending of DISPLAY variable.
>>
>> Aivils
>>
>> Citējot "StompDagger1@xxxxxxxxx" <stompdagger1@xxxxxxxxx>:
>> > Hello,
>> >
>> > Thanks for the replay but I'm not sure how this answers my question.
>> > using xorg I can "seats", e.g. xorg will run a session limited to a
>> > specific combination of gpu, screen, keyboard and mouse.
>> > I just want to add sound card to it.
>> >
>> > 
>> > An wise Scandinavian old man once said: "in the end, everything is
>> > going to be alright"
>> >
>> >
>> > ________________________________
>> >
>> >  From: Giuseppe Penone <giuspen@xxxxxxxxx>
>> >
>> > To: "StompDagger1@xxxxxxxxx" <stompdagger1@xxxxxxxxx>
>> > Cc: "xorg@xxxxxxxxxxxxxxxxxxxxx" <xorg@xxxxxxxxxxxxxxxxxxxxx>
>> > Sent: Monday, June 18, 2012 9:31 AM
>> > Subject: Re: defining sound card in xorg.conf
>> >
>> >
>> > for usb audio cards there's a good explanation here
>> > https://help.ubuntu.com/community/UbuntuStudio/UsbAudioDevices
>> >
>> > anyway to make it simple:
>> >
>> > 1) check that your system recognized the usb audio:
>> > cat/proc/asound/cards
>> >
>> > 2) set the desired card as default used:
>> > sudo nano  /etc/modprobe.d/alsa-base
>> > go to the bottom and change the index of the default card from -2 to 0
>> >
>> > cheers.
>> >
>> >
>> >
>> >
>> >
>> > On Sat, Jun 16, 2012 at 10:54 PM, StompDagger1@xxxxxxxxx
>> > <stompdagger1@xxxxxxxxx> wrote:
>> >
>> > Hello All,
>> >
>> >> I'm about to reinstate my 3 way multiseat configuration (2 seats
>> >> and one for the tv), up until now I didn't used the sound cards but
>> >> now as I got a usb sound card I want to add sound support.
>> >>
>> >>
>> >> is there a way to define in xorg.conf what sound card will be used
>> >> by what seat?
>> >>
>> >>
>> >> Thanks.
>> >>
>> >> 
>> >> An wise Scandinavian old man once said: "in the end, everything is
>> >> going to be alright"
>> >> _______________________________________________
>> >> xorg@xxxxxxxxxxx: X.Org support
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>> >> Info: http://lists.x.org/mailman/listinfo/xorg
>> >> Your subscription address: giuspen@xxxxxxxxx
>> >
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>>
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