To conclude, I got the ivoler one, work perfectly !

I fix it by pluging the speakers directly to the screen, and not the steam deck. Was probably static sound.

Only in video ! Game work normally. How can I can change those settings in desktop mode ?

I have two hdmi cable, it does the same !

Still waiting for a good promo to update mine !

Got baited by the website, since I don’t have any account, I made a wetransfer link. : https://we.tl/t-7Bd2PnUvG9

It happen when I use headphones too. But only when it’s used as a PC. I try to unplug it as well, doesn’t work.

It does the same when I turn off the speaker in steam deck, you right it’s probably a interference, but couldn’t find from where. I will try more test to see if I can somehow stop it.

Tested to be sure, but it doesn’t work unfortunately !

I made a small video to show it. (Video is upside down for some reason) : NB : Wetransfer Link.

To describe a bit more, you can see the setup in this picture.

I didn’t had any problem with the speaker when there were plugged in my PC.

You can say the parasite sound is playing when there were no sound for a “long” time.

It’s not a UI sounds, it’s a static sound, same as if you plug speaker when on.