yrd
1
Has anyone had success in getting sound to work RPi4 devices? What I’ve tried so far:
- Adding
dtparam=audio=on
to boot.loader.raspberryPi.firmwareConfig
and rebuilding the SD image
- Manually adding the aforementioned boot option to the
config.txt
file in the boot partition
- Enabling ALSA and Pulseaudio
Nothing has helped by get a running system where aplay -L
yields more than the null
card. Is there anything I’m missing here?
I’m not positive, but I think you might have to use linuxPackages_rpi4
.
EDIT: It doesn’t look like the PWM audio driver was ever mainlined, so this is probably the case.
I had success having sound on the RPi4 jack output using this config.
All of it may not be necessary since I tried a lot of things.
{ pkgs, lib, flakeInputs, ... }:
{
imports = [
# ...
flakeInputs.nixos-hardware.nixosModules.raspberry-pi-4
];
boot = {
extraModprobeConfig = ''
options snd_bcm2835 enable_headphones=1
'';
};
hardware.raspberry-pi."4" = {
fkms-3d.enable = true;
audio.enable = true;
dwc2.enable = true;
};
hardware.pulseaudio = {
enable = true;
package = pkgs.pulseaudioFull;
};
}
I also manually added
dtparam=audio=on
in the config.txt file. But I am not sure that it is needed.
I’m pretty sure the important part of that is nixos-hardware using the kernel that I mentioned, but I could be wrong.
yrd
5
Thanks for your answers! I copied @nurelin’s config and something in there seemed to do the trick 