Sound does not work through HDMI- please help!

[worldblanket]

I've been working on this for 3 hours now and I'm about to pull my hair out.

Video works perfectly, controllers work perfectly, everything works perfectly. But NO SOUND AT ALL.

I've searched all over the internet and tried every fix I could find. I tried editing multiple things in the config (it either broke the boot sequence or did nothing), I tried the alsamixer, I tried updating things, I've tried every setting in the GUI, I can't figure this out. Every "fix" I've found doesn't work for me. If someone could help me they would be my hero.

Specs: Raspberry Pi 4 2GB connected to my TV through HDMI

Thank you for your time.

[mitu]

Please add more info about your system, as detailed in https://retropie.org.uk/forum/topic/3/read-this-first.

Make sure your sound is not muted - check with alsamixer - and the volume is up. Can you show a screenshot of alsamixer ?

[bluestang]

it might also help if you post the output of the cmd:

aplay -l

Before 5.4.51 went public I had issues with my 2 Sony PS4 controllers taking priority of my BCM2835 sound card. The PS4 controllers get picked up as additional ALSA sound cards and the kernel seemed to give them priority over the BCM2835.

The controllers were being assigned to card 0 slot (which is default) and the BCM2835 was card 2/3.

I fixed this by creating an asound.conf in /etc with the following:

pcm.!default {
    type hw
    card b1
}

ctl.!default {
    type hw
    card b1
}

[AdamBeGood]

Have you tried the other HDMI port? That happened with me.