MLD-5.x > Raspberry PI

[MLD-5.5 testing] RPI4 - Docker

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clausmuus:
You must specify the audio device (plug:iec958) you want to use, like we do for the sofhddrm. It is not configured in the asound.conf, since it needs a other syntax than the devices for all other platforms.
If I remember right, the vc4-kms-v3d-pi4 is an old syntax, that are not supportet any more.

gr4vity:
Hi Claus,

I think the audio problem i have is different than sofhddrm.



On a working MLD kernel 5.12.6

There is vc4-hdmi-0, vc4-hdmi-1 sound cards.



On MLD kernel 5.12.6.203 i build in dev container

There is no sound cards.

I can't see vc4 module in lsmod.

It seems that vc4 module isn't configured properly , even if i run modprobe vc4
There is no sound cards.

Should i build the kernel again with vc4 built-in?

Bdw: i'm using pulseaudio.

Best Regards.

rfehr:
Hi,

can you teste with

dtoverlay=vc4-kms-v3d,noaudio

in the config.txt

best regrads,
  Roland

gr4vity:


Hi Roland,

I tested that, unfortunately it didn't work.



I think the problem is due a missing module, i have checked a working alsa package and the package i build.
There is a missing seq folder and snd-seq-device.ko
Could that be the reason?
How to enable it in the config file?

Best Regards.

gr4vity:
Hi,

I have checked a working MLD system, kernel v5.12.6

If i used dtoverlay=vc4-kms-v3d in config.txt then i'll have no sound cards.

So, it's not related to snd-seq-device module.

You guys can try that too.

Best Regards.

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