Re: sound card ordering

[Samuel Thibault <sthibault@debian.org>]

Keith Barrett, le dim. 18 août 2019 20:30:50 +0100, a ecrit:
> On 18/08/2019 18:12, Samuel Thibault wrote:
> > Keith Barrett, le sam. 17 août 2019 13:41:14 +0100, a ecrit:
> > > There are two sound cards in the system but only one was detected when I
> > > installed buster.
> > > 
> > > When the system starts, the card ordering is not reliable so on occasions
> > > the non working asus card is card 0 hence producing no speech output.
> > 
> > I'm surprised: what ALSA_CARD do you have in /etc/default/espeakup?
> 
> Interesting, I have not modified /etc/default/espeakup but it does not seem
> to specify a card:
> 
> ALSA_CARD=""

Oh? were you installing with speakup enabled during installation?

> > > Is this known and how can I force the onboard card to be always card 0?
> > 
> > Normally the installer uses named identifiers instead of numbered
> > identifiers: in /proc/asounc/cards you can find e.g.
> Here is /proc/asound/cards
> 
>  0 [MID            ]: HDA-Intel - HDA Intel MID
>                       HDA Intel MID at 0xfbff8000 irq 31
>  1 [DGX            ]: CMI8786 - Xonar DGX
>                       C-Media Oxygen HD Audio at 0xce00, irq 19
> I am not sure that this order is retained when it boots in the non-working
> state.

That's where specifying either MID or DGX instead of 0/1 allows to avoid
relying on the ordering.

Samuel