[arch-general] Panic - no sound devices after upgrade

[Tom Gundersen]

On Tue, Jul 19, 2011 at 4:37 PM, Fons Adriaensen <fons at linuxaudio.org> wrote:
> After a routine upgrade it seems I don't have any sound devices any more.
>
> More in detail:
>
> * The driver for my card (RME HDSP MADI, snd_hdpsm) is loaded.
> * aplay -L tells me there is only the 'null' device.
> * (re)starting /etc/rc.d/alsa doesn't change things.
> * There is *no* /dev/pcm at all.
> * /sys/class/sound only has a link to a timer device.
> * No traces in dmesg or /var/log/messages of anything going wrong.
>
> I suspect udev fails to do the right things.
>
> * /etc/udev/rules.d is empty
> * /etc/udev/udev.conf contains only the line
>  udev_log="err"
>
> This is a professional studio and I'm expecting clients tomorrow at 09:00.

You could try udev from testing (I agree that probably udev is the
culprit, though it has not been updated in core for some time).

-t