HDR help

[Malygos]

So my tv supports ycbcr 444 60hz but in the control panel it only goes to 8bit which through doing some digging hdmi 2.0 doesnt support 10 bit in that so my question is will hdcp 2.2? My gpu and tv both support 2.2

[TehSpoopyKitteh]

Why use YCBR 444? RGB has a better color gamut for gaming and a higher contrast ratio. Are you even using HDMI? Also, are you sure you are using the correct video port?

[Malygos]

Originally posted by 🐱Sir Edmund's Spoopy Kitteh:

Why use YCBR 444? RGB has a better color gamut for gaming. Are you even using HDMI?

yes im using hdmi

[TehSpoopyKitteh]

Originally posted by jefedemuchanina:

Originally posted by 🐱Sir Edmund's Spoopy Kitteh:

Why use YCBR 444? RGB has a better color gamut for gaming. Are you even using HDMI?

yes im using hdmi

Is the video card you are using from NVIDIA? Anyway, RGB is better when you are outputting video from your PC to your TV set and also a better option for your monitor.

[Malygos]

Originally posted by 🐱Sir Edmund's Spoopy Kitteh:

Originally posted by jefedemuchanina:

yes im using hdmi

Is the video card you are using from NVIDIA? Anyway, RGB is better when you are outputting video from your PC to your TV set and also a better option for your monitor.

Yes gtx 1080 and with rgb i cant enable hdr in windows settings my tv's uhd mode is on but when i click enable it says keep settings yes or no but its like its stuck off

[TehSpoopyKitteh]

Originally posted by jefedemuchanina:

Originally posted by 🐱Sir Edmund's Spoopy Kitteh:

Is the video card you are using from NVIDIA? Anyway, RGB is better when you are outputting video from your PC to your TV set and also a better option for your monitor.

Yes gtx 1080 and with rgb i cant enable hdr in windows settings my tv's uhd mode is on but when i click enable it says keep settings yes or no but its like its stuck off

OK hold on...lemme get my PC going. By the way, what is the model for your TV set? I'm going to send you a friend request.

[Malygos]

Originally posted by 🐱Sir Edmund's Spoopy Kitteh:

Originally posted by jefedemuchanina:

Yes gtx 1080 and with rgb i cant enable hdr in windows settings my tv's uhd mode is on but when i click enable it says keep settings yes or no but its like its stuck off

OK hold on...lemme get my PC going. By the way, what is the model for your TV set? I'm going to send you a friend request.

https://www.bestbuy.com/site/lg-55-class-54-6-diag--led-2160p-smart-4k-ultra-hd-tv-with-high-dynamic-range/5804403.p?skuId=5804403

This one but for some reason it says it supports dolby vision hdr but my box says it supports hdr10 also figured out hdr only cuts on with 422 10 bit in windows for some reason none of the other variants would let me cut it on

[TehSpoopyKitteh]

Originally posted by jefedemuchanina:

Originally posted by 🐱Sir Edmund's Spoopy Kitteh:

OK hold on...lemme get my PC going. By the way, what is the model for your TV set? I'm going to send you a friend request.

https://www.bestbuy.com/site/lg-55-class-54-6-diag--led-2160p-smart-4k-ultra-hd-tv-with-high-dynamic-range/5804403.p?skuId=5804403

This one but for some reason it says it supports dolby vision hdr but my box says it supports hdr10 also figured out hdr only cuts on with 422 10 bit in windows for some reason none of the other variants would let me cut it on

Your TV does not need to process the HDR, your video card already does it. Your videop card will be able to control the luminosity displayed by each pixel. HDR mode on your TV is nothing more than a proceesed affect used only when RGB or YCMP444 are not availible.


These are the settings you need in NVIDIA...all you need your tv to do is turn on game mode....the GPU does the rest.
https://i.imgur.com/0KnG3De.png

[tacoshy]

a TV can display HDR even without game mode. And GPU doesnt process and controll HDR it just sends the information for it which requires the TV to handle it in the first place. for 4K HDR the most vital piece is the right HDMI 2.0b (18+ Gbps) because otherwise you display 4K but not have enough bandwidth to get HDR informations through. Also it will be enough for 10bit. A normal USB 2.0 (2.0a) will not be enough.

[TehSpoopyKitteh]

HDR is a digital photography term....not a processing "feature".
https://photography.tutsplus.com/articles/busted-7-myths-about-high-dynamic-range-photography--cms-23674

Originally posted by tacoshy:

a TV can display HDR even without game mode. And GPU doesnt process and controll HDR it just sends the information for it which requires the TV to handle it in the first place. for 4K HDR the most vital piece is the right HDMI 2.0b (18+ Gbps) because otherwise you display 4K but not have enough bandwidth to get HDR informations through. Also it will be enough for 10bit. A normal USB 2.0 (2.0a) will not be enough.

Just an FYI...and no offense by this...the OP and I already discussed that.

The OP tried using a HDMI 2.0b cable and the TV kept reenabling YCMP244 display mode to use HDR. The TV's circuitry seems to cut to YCMP244 (6bpc) when HDR processing is enabled in 4K. By overriding what is sent to the TV through the GPU (and enabling RGB in stead) the OP can actually use it on full color settings in stead of limited to get the desired affect.