Posts by mikec27

I know it's been a while but I finally got my system working flawlessly. Thanks to the new Ezcoo HDMI 2.1 splitter, I'm able to output in full 4k (Dolby Vision or HDR 10) to my TV and have the second HDMI port going to my capture card downscaled to 1080p. I've tested it with my Apple TV, PS5 and Nvidia Shield and have not experienced any of the past issues.

Quote from The

What EDID setting are you using?
What device are you using downstream of the Ezcoo to digitize the signal?
Does you TV remain/recognize the full 4K Dolby Vision signal from your input?

Unfortunately the Ezcoo is not the perfect solution.

I've found that after using it a while, it works very well with my Apple TV with full 4k Dolby Vision and Dolby Atmos. For me this is good enough as my Apple TV is main media source 99% of the time. Colors were a little washed out, but Hyperion 2.0.14 and newer allow you to compensate for this: from the changelog (New color processing settings: Saturation gain and brightness/value gain. They allow compensating washed out HDR colors on LEDs).

However, when I go to use my Nvidia Shield any 4k Dolby Vision movie that I play though Plex will display a mostly purple picture. The only way I've found to avoid this is to go into the settings and turn off Dolby Vision and force HDR10.

Not sure why it works fine for Dolby Vision on the Apple TV and not another source like the Nvidia Shield. I'm using the

4K7.1EDID setting, downscaling turned on with my Apple TV. I'm just using a generic USB HDMI capture device connected to a Raspberry Pi downstream. I wish there was a USB HDMI capture card/device that could do Dolby VIsion as that would solve all of our issues.

Hi all,

Just stumbled across this thread as I was having the exact same issues here with a brand new Apple TV 4k. Anytime I had the output set to Dolby Vision the colors were all mismatched and mostly purple. I was able to work around this problem by using a HDMI splitter that can downscale on the output. I picked up this one from Amazon and it worked perfectly. https://a.co/d/4KA3AB9