EZCOO ez-sp12h21 and XBOX Series X Dolby Vision Issue

[superlulu55]

Hello everyone,

I have a problem I can't seem to solve.

I have a Denon X2800H amplifier, a TCL 55C805 television, an Xbox Series X, a Raspberry Pi 400 for HyperHDR and Home Assistant, an Ezcoo ez-sp12h21 splitter, and an MS2109 USB capture card.
I have certified HDMI cables (QR code present).

I also have a Sony X700 Blu-ray player.
I lose Dolby Vision 120Hz on the Xbox as soon as I connect the Ezcoo and use the 1080p scaler on output 2 of the Ezcoo. The TCL is connected to output 1 of the Ezcoo.

If I switch both outputs to 4K, I don't have any problems, but my capture card no longer detects anything. I tested it directly on the Xbox without going through the Denon. I also tested it by unplugging the capture card from output 2 and I have the same problem. The Xbox outputs HDR10 120Hz and no longer Dolby Vision.

I have the latest Ezcoo firmware, and I'm using Copy EDID. If I test with the switches: Atmos, 120Hz, Dolby Vision, I get the same result.

I tested with both outputs of the Denon. Monitor 1 directly to the TV and Monitor 2 to the Ezcoo. It works. I get Dolby Vision 120Hz.

But, when playing the Blu-ray, the HyperHDR display turns pink…

I've searched several forums and the excellent threads on git, but I can't find a solution, and my English isn't perfect. If you have any ideas, I'd appreciate it. Would connecting an MS2130 or 2130s to the Ezcoo solve the problem?

Thanks

[awawa-dev]

Hi
The pink screen is actually a typical symptom of 'true' Dolby Vision (Standard TV-led DV). You cannot strictly force LLDV via EDID; you can only suggest/propose it. Ultimately, it is the video player that decides whether to use it. If the player detects that the TV supports Standard DV, it will usually prioritize that protocol instead.

[superlulu55]

Thanks for your reply. What's strange is that I only experience this issue when I connect the EZCOO to output 2 of the Denon. I get the 120Hz Dolby Vision signal from the Xbox on the TV via output 1 of the Denon, and the EZCOO works fine since HyperHDR displays the correct colors. But if I switch to the Sony Blu-ray or another Dolby Vision source, I get a pinkish tint. If I only use output 1 of the Denon with the EZCOO connected to it, there are no Blu-ray issues, but I lose the 120Hz Dolby Vision signal for Xbox games...

[danielbrunt57]

Subscribing as I have a similar issue with "pink" screen and FireTV Cube (Dolby Vision) > EZCOO SP12H2: 1 > LG7700, 2 > UGREEN 257173 > Pi 3B+.

[superlulu55]

I have changed my capture card for this one:
https://www.amazon.fr/dp/B0FHJTJ2QS?ref=ppx_yo2ov_dt_b_fed_asin_title
It seems to accept 1080p 120hz input but nothing change. I think i have problems stability with the sp12H21 splitter. I need to reboot it sometimes when i change source video for retrieve video signal . I try xnappo custom firmware but it doesn't accept it.