[LAU] HDA AD1882 no card

karl at aspodata.se karl at aspodata.se
Mon Jan 10 19:24:37 CET 2022


Karl:
> I have a lenovo desktop computer which I cannot make sound work
> on, what am I missing ?
> 
> It's a HDA AD1882 "sound card", but alsamixer says "no card".
> 
>  alsa-info, kernel config and lenovo doc (see p.80) in:
> http://aspodata.se/tmp/sound/
> 
> ///
> 
> I run with static /dev (no udev) and
> boot directly to disk (no initrd).

Ok, found the culprit, the kernel was configured
with dynamic minors which doesn't play well with
static /dev. This config kicked in due to a hdmi
setting, so I missed it.

$ grep DYNAMIC_MINOR config-4.19.182-rt74a 
# CONFIG_DVB_DYNAMIC_MINORS is not set
CONFIG_SND_DYNAMIC_MINORS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
$

Thanks, for all help.

Regards,
/Karl Hammar


More information about the Linux-audio-user mailing list