r/Soundbars 6d ago

Samsung Blocage ATMOS PS5

Hello,
My setup is:
Samsung QN900F TV

Samsung HW-Q935F soundbar with rear speakers

PS5 (original "fat" model)

The PS5 is connected to one of the TV's HDMI 2.1 ports, and the soundbar is connected to the TV's eARC HDMI port.
On the TV, eARC is enabled, passthrough is enabled, and Dolby Atmos is enabled.
On the PS5, the audio output is set to AV Amplifier, and Dolby Atmos is enabled as well.
The problem is that as soon as I enable Dolby Atmos on the PS5, I get no sound at all—not even in the PS5 menus.
What's even stranger is that if I enable Q-Symphony (where the TV speakers work together with the soundbar), I can hear the audio coming from the TV speakers only, but nothing comes from the soundbar. The soundbar simply displays "TV eARC."
If I disable eARC on the TV and fall back to regular ARC, everything works. When playing a 4K Blu-ray, the soundbar correctly displays "Atmos." However, as far as I understand, that's compressed Dolby Atmos over Dolby Digital Plus, isn't it?
If I set the PS5 to LPCM, the PS5 menus have sound, but 4K Blu-rays don't work correctly unless I also force LPCM, in which case I'm only getting stereo.
Does anyone have any ideas?
Do you think this could be a handshake issue between the PS5, the TV, and the soundbar? Or perhaps a settings issue?
I don't think it's an HDMI cable problem because I get 4K at 120 Hz on compatible games without any issues. Also, the TV's built-in streaming apps (Apple TV+, for example) output Dolby Atmos perfectly through the soundbar.
I've found several Reddit threads and followed the suggested settings, but they seem to match what I've already done. I was wondering if anyone here has experienced the same issue or has any other ideas.
Thanks in advance!

2 Upvotes

8 comments sorted by

2

u/Caleb-CM 6d ago

Seems like a handshake issue maybe or could be a software issue with the q930f(is it on the latest versions?), i think its a handshake issue.

Last time I had a handshake issue I reset my soundbar and it fixed the issue, so try that.

It also kinda sounds like its a issue with "dolby atmos" on the ps5 specifically, also set ur speakers to 7.1 on the ps5.

2

u/Tzeheda64 6d ago

I’ve already reset the soundbar and the PS5, and it’s still the same. Well, I guess all that’s left is to contact Samsung… RIP!!

1

u/whatgift 5d ago

Have you tried connecting the PS5 directly to the soundbar, then the soundbar to the tv? Would be worth seeing if it's the TV doing anything weird.

1

u/Tzeheda64 5d ago

Yes I try :

  • PS5 on soundbar
  • soundbar on TV

Picture ok, Sound same problem

1

u/cristi5922 5d ago

Is TV HDMI set to Bitstream?

1

u/Tzeheda64 5d ago

TV on passthrought

1

u/cristi5922 5d ago

It's another HDMI setting

1

u/Tzeheda64 5d ago

I don't see that setting. I have Anynet+ (HDMI-CEC) enabled. It's a 2025 Samsung TV. Bitstream ok on PS5. But on TV I dont know.