CentOS 7 Userland on Raspberry Pi 3 B+ No Sound.

[mon2908]

Hi,

I recently installed CentOS 7 Userland 18.04 on my Pi 3 B+. Everything looks quite good but I don't get sound working.

I loaded the snd_bcm2835 module and put a reference in /etc/modules-load.d/snd_bcm2835.conf and it is still loaded if I check with lsmod.
I put myself in the wheel,audio and video group

but aplay -l or aplay --list-devices tells me that it does not find my sound device.
The same problem occurs if I check with pavucontrol. The only device I see is the dummy output devices.

How do I make my sound device appear in aplay. What did I miss to do?

Thanks for your help and your time.

Sincerly mon2908

[mon2908]

For everyone interested in this post.

I did a firmware update with rpi-update but that did not do the trick, after that I set a config.txt file in the boot folder the parameter necessary to make the sound chip work is dtparam=audio=on

after that aplay -l or aplay --list-devices found the sound chip.

maybe you have to adjust the output device with the command amixer cset numid=3 followed by a number between 0 to 2 with this command you set sound to hdmi or headphone chinch connector.

Thanks folks that you tried hard to help me, hope my solution is useful to those who weren't lucky in their investigation and had similar trouble.

Bye.