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

[Janina Sajka <janina rednote net>]

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>
> >
> > _______________________________________________
> > orca-list mailing list
> > orca-list gnome org
> > https://mail.gnome.org/mailman/listinfo/orca-list
> > Orca wiki: https://wiki.gnome.org/Projects/Orca
> > Orca documentation: https://help.gnome.org/users/orca/stable/
> > GNOME Universal Access guide: https://help.gnome.org/users/gnome-help/stable/a11y.html
> > Log bugs and feature requests at http://bugzilla.gnome.org




-- 

Janina Sajka,   Phone:  +1.443.300.2200
                        sip:janina asterisk rednote net
                Email:  janina rednote net

Linux Foundation Fellow
Executive Chair, Accessibility Workgroup:       http://a11y.org

The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
Chair, Accessible Platform Architectures        http://www.w3.org/wai/apa