[Pkg-alsa-devel] Bug#913045: libasound2: ALSA lib pcm_dmix.c:1099:(snd_pcm_dmix_open) unable to open slave

Elimar Riesebieter riesebie at lxtec.de
Thu Nov 8 18:59:56 GMT 2018


* Pedro Silva <pedrofsilva at netcabo.pt> [2018-11-08 17:21 +0000]:

> On Thu, 8 Nov 2018 17:56:28 +0100 Elimar Riesebieter <riesebie at lxtec.de>
> wrote:
> > * Pedro Silva <pedrofsilva at netcabo.pt> [2018-11-08 08:56 +0000]:
> > It seems that your HDMI device is your default sound device. If you
> > want to use your HDA-Intel to play sound you need a $HOME/.asoundrc:
> >
> > ###
> > pcm.!default {
> > type hw
> > card 1
> > }
> > ###
> >
> > To configure this system wide put it in /etc/asound.config
> >
> > Elimar
> 
> With the $HOME/.asoundrc, pointed to card 2, the sound is back and fully
> working, thank you.
> 
> You mean that a minor revision to this package caused it to now require
> a manual configuration file?  Why?

Hmm, the priority of the sequence of sond devices is done by the
kernel (udev|systemd). If you are interested please run a test as
follows:

Unplug your usb device and reboot. After reboot plug in your usb
device and run 'cat /proc/asound/cards'.


Boot with a plugged in usb device and run 'cat /proc/asound/cards'.

Is there any difference?

Elimar
-- 
  You cannot propel yourself forward by
  patting yourself on the back.
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