u/Vi0let_Ice

So I have always had my Series X and PS5 connected to the Onkyo, then output from the Onkyos "MAIN" HDMI output back to a 120Hz capable input on my TCL QM8K. The Onkyos HDMI output is set to 8K Enhanced. This has always worked fine, until just today.

When I turn on my Series X or PS5, my tv now displays "No Signal". Sometimes the picture will flash on for a second, then go back to "No Signal" in a split second. Sometimes it keeps flashing in and out. Other times it just stays on "No Signal".

Now, this is using 4K and 120Hz on the consoles. If I change the consoles to not use 120Hz, everything goes back to normal when using 60Hz. If I set the Onkyo HDMI to 8K Standard, things also work again... but I have ALWAYS had the Onkyo set to 8K enhanced until now. Why is this happening?

I have swapped around too many 8K HDMI cables to mention, no difference. I have factory reset the Onkyo, TV, and both consoles. No difference. I have unplugged all HDMI cables from both ends and unplugged to power to all devices for a half hour. No difference. Tried the same with multiple times with trying to power the tv, Onkyo, and consoles in different orders. No change to anything. Tried CEC off, CEC on, and every single combination of settings across all devices I could thing of. I even tried 101 different suggestions from Chat GPT. lol

Why did 8K enhanced mode just suddenly quit working today, after months on end of it working fine the way it was? It works until I set the consoles to use both 4K and 120Hz. If I lower the resolution on the consoles, 1080p and 120Hz works fine. 4K 60Hz works fine. It's only the combination of 4K and 120Hz on the consoles that is causing my tv to say "No Signal", when 4K 120Hz worked perfectly fine up until just today. Faulty HDMI board or something on the Onkyo?

I noticed since the last update or two that NordVPN is now respecting my Windows Firewall rules. I've been using Nord for approx 10 years now and it has never once in that time respected my firewall rules, but I believe that was by design as some feel a firewall is not needed when using a VPN. For me however, I have always felt differently so this is indeed great news. Anyone else notice? I'm on 8.2.3.0.

EDIT: It absolutely was a PS5 setting. The video transfer rate had to be set to -1. All is working great now on both Onkyo outputs.

So I have a brand new RZ-30 that I just hooked up. Connected my PC, Series X, and PS5 Pro to it. The Onkyo has all three inputs set to 8K Enhanced.

When I use the Onkyos "Main" video output to my tv, 4k 120hz 7 VRR work perfectly fine for my PC and Series X. The PS5 however just goes to the TV's "No Signal" screen unless I change the Onkyo settings to 4K Standard or 4K Enhanced. Problem with that is, doing do disables both VRR and 4K 120hz from working on the PS5.

This is what is confusing me. If I switch to using the Onkyos "SUB" video output, the PS5 functions as intended when set to 8K Enhanced. If I go back to the "Main" output, it stops showing video for the PS5 again even though I can still hear the audio.

Does anyone know what is causing this? Do I have a bum port on my Onkyo or....? All of the same exact cables and settings were used for both video outs. I did also try swapping cables around and no go. Don't know why the PC and Series X both work 100% with VRR and 4K 120hz in the Main port, but just the PS5 doesn't. Like I said. Same cables. Same settings across the board. PS5 works great with one output but not the other. PC and Series X work great on both outputs.