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Re: [orca-list] ALSA Card Ordering [Was: I hate pulse]

Howdy,

you can get all your soundcards with
pactl list short sinks
or more detailed with:
pacmd list-sinks

to set a new default device use:
pacmd set-default-sink <Index>
the index is the number on the beginning of the line of pactl list short sinks 

if the wrong soundcard is set you can run those commans via SSH.
it remembers the default but if you dont trust and want to be sure that a special device is set you can place it as start script
i also wrote a small script and bound it to an bash and gnome shortcut to cycle between all soundcards (maybe its useful for you or others) 
---- script start ------
#!/bin/bash
sinks=(`pacmd list-sinks | sed -n -e 's/\**[[:space:]]index:[[:space:]]\([[:digit:]]\)/\1/p'`) 
sinks_count=${#sinks[@]}
active_sink_index=`pacmd list-sinks | sed -n -e 's/\*[[:space:]]index:[[:space:]]\([[:digit:]]\)/\1/p'` 
newSink=${sinks[0]}
ord=0

while [ $ord -lt $sinks_count ];
do
    echo ${sinks[$ord]}
    if [ ${sinks[$ord]} -gt $active_sink_index ] ; then
        newSink=${sinks[$ord]}
        break
    fi
    let ord++
done

# move current running streams to the new device
pactl list short sink-inputs|while read stream; do
    streamId=$(echo $stream|cut '-d ' -f1)
    echo "moving stream $streamId"
    pactl move-sink-input "$streamId" "$newSink"
done
pacmd set-default-sink "$newSink"
--- script end----

Am 20.08.2017 um 18:01 schrieb John G. Heim:
Well, it's kind of hard to reconfigure pulse when you have no sound. Again, at least 3 times in the past year or 2, I've lost sound, had to use ssh to get into my computer, and remove the ~/.config/pulse/ folder. I didn't make up the solution, I found it on this list. So I am not the only one. It's a problem. Lets not act like it's not.
I don't know, I speculated pulse's problems were due to it not being possible to guarantee the order in which hardware devices are discovered. Maybe that's wrong but it's not really to the point. Somebody says pulse has a prioritizing algorithm which seems reasonable to me. But that algorithm probably at least somewhat depends on the order in which ards are discovered. I don't know how it could be otherwise and there certainly seems to be amount of randomness in it. 




On 08/19/2017 01:39 PM, chrys wrote:

Howdy,
sorry but that is just bullshit lol. Also PA does not choose an random sound card. it uses that one that you defined as default. You also can set output devices and prioritys by scripting or configuration like in alsa... so that argument is just wrong. 
 cheers chrys
Am 19.08.2017 um 20:24 schrieb Janina Sajka via orca-list:

Micha:

For me this is yet another reason to stay away from pulse. The last
thing I need with 5 sound cards is having some bot deciding which ones
should do what, and in what order. I have no use for machines that
ignore my specified configurations to make up their own.


In other words, this is just another way for things to break.

Janina

Michał Zegan writes:

actually from what i know, pulseaudio does not go by ordering, but it
prioritizes cards based on type like internal card vs usb card vs
whatever... etc

W dniu 19.08.2017 o 19:56, Janina Sajka via orca-list pisze:

Hi, John:

I noted one comment in your post re pulseaudio that I want to respond
to.

John G Heim writes:

... you can never guarantee that hardware
devices are discovered in the same order. ...

No, but you can control the card order they're assigned, e.g. via
/etc/modprobe.d/alsa.conf using vid= and pid= params for multiple USB
sound cards.
The best on line summary of available approaches I've found to date is 
at:

http://alsa.opensrc.org/MultipleCards

I'm currently working through the above as I have a nagging problem
every time I'm forced to reboot, e.g. after installing a new Linux
kernel.
My problem is that my hda device isn't always discovered. This morning I ran a system update and had to reboot some 30 times before my Intel-810 hda device was discovered. I've looked in the logs. The problem is the 
system is literally not seeing the device on most boots, yet once
loaded, it runs perfectly for days and weeks.
According to the above referenced article, there are approaches I might 
try to resolve my problem without rebooting. And, it seems my current
ordering config code could be updated, too.
Nevertheless, I offer my current code because it does work to reliably order my 5 sound devices. The always come up in the order defined below. 
My only issue is whether, or not card 0 has been found, else the
remaining devices are shifted by 1--which doesn't help my situation as I need the headset to match my configured FreeSwitch config, just as one 
example.

<begin config file code>
alias snd-card-0 snd-hd-intel
options snd-card-0 index=0
options snd-hda-intel id=PCH index=0
alias snd-card-1 headset
options snd-card-1 index=1
options snd-usb-audio index=1 vid=0x1395 pid=0x3556
alias snd-card-2 cmedia
options snd-card-2 index=2
options snd-usb-audio index=2 vid=0x0d8c pid=0x000c
alias snd-card-3 ice
options snd-card-3 index=3
options snd-ice1724 index=3
alias snd-card-4 hdsp
options snd-card-4 index=4
options snd-hdsp index=4
<end config file code>

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Orca documentation: https://help.gnome.org/users/orca/stable/
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Log bugs and feature requests at http://bugzilla.gnome.org
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