Michael,

On Sunday, 2021-01-03 16:13:35 +0000, you wrote:

> ...
> It used to be the case modules were probed/reloaded by 'alsactl init' when 
> initialising the audio card.  If built in the kernel binary the command 
> couldn't do this.

Thanks for this background information :-)

Am I correct in asuming  that this more or less  is still true,  and I'd
rather continue to build sound support as modules?

> ...
> I suggest you use alsactl init before and after and compare the output 
> between 
> a working and non-working state, to try to isolate the problem.

Erm ... good suggestion:

$ alsactl init
alsa-lib 
/var/tmp/portage/media-libs/alsa-lib-1.2.3.2-r1/work/alsa-lib-1.2.3.2/src/ucm/main.c:983:(snd_use_case_mgr_open)
 error: failed to import hw:0 use case configuration -2
Found hardware: "HDA-Intel" "Realtek ALC269VC" "HDA:10ec0269,15586508,00100202 
HDA:80862809,80860101,00100000" "0x1558" "0x6508"
Hardware is initialized using a generic method
/usr/share/alsa/init/default:102: value write error: Input/output error
/usr/share/alsa/init/default:263: value write error: Input/output error
/usr/share/alsa/init/default:263: value write error: Input/output error
$ echo $?
99
$

Running "sudo alsactl init" produces exactly the same result.  So what's
broken here?  Or what to try next?

Sincerely,
  Rainer

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