4k @ 60HZ W/ HDR

[Rem4rk4ble]

So I have HDR capable tv which supports everything yada yada yada. My issue at the moment is that I can only select chroma 422 10 bit or RGB 8 bit full at 30hz while at 4k. If i switch to 60Hz nvidia control panel locks me to chroma 420 at 8 bit limited which does not meet HDR10 requirements. My GPU is hooked up to my TV via a DP1.2 to HDMI 2.0 cable adapter paired to a hdmi 2.0 cable that goes to the tv. My question at the end of the day is, if I upgrade to a DP1.4 Male with HDMI 2.1 female adapter and get a male to male HDMI 2.1 cable will Nvidia control panel stop locking me out or will this make no difference? I am aware that at 4k 60hz the HDMI 2.0 cables cannot carry enough bandwidth to run that resolution and refresh rate and have HDR on top of it. I njust want to know if upgrading to cables that can handle it will permit me to select these options

[darkkterror]

I use a Samsung QN55Q8FN and I can do 4k 60Hz 10 bit at 4:2:2 over HDMI.

However, I am using straight HDMI, not DP to HDMI.

[Rem4rk4ble]

Originally posted by darkkterror:

I use a Samsung QN55Q8FN and I can do 4k 60Hz 10 bit at 4:2:2 over HDMI.

However, I am using straight HDMI, not DP to HDMI.

try turning on HDR

[Rem4rk4ble]

Originally posted by Bad 💀 Motha:

Well you better off using a hdmi 2.1 cable, regardless. No adapters, otherwise the gpu and tv might not be able to crosstalk properly.

Also try other hdmi ports, usually only the first or last hdmi port on a higher end tv would allow for the higher end output options.

unfortunately my tv is not high end enough but if i do upgrade in the future again ill test everything out. i had lots of issues initialy with my setup but with experimentation i managed to get everything to work the way i wanted it to. sure the adapter might not be ideal however it could get the job done, not to mention i dont have a choice considering my gpu and setup

[darkkterror]

Originally posted by 76561198132278000:

Originally posted by darkkterror:

I use a Samsung QN55Q8FN and I can do 4k 60Hz 10 bit at 4:2:2 over HDMI.

However, I am using straight HDMI, not DP to HDMI.

try turning on HDR

I can and have. I've had this TV for about a year and I've had other Samsung TVs prior to that.

[Rem4rk4ble]

Originally posted by darkkterror:

Originally posted by 76561198132278000:

try turning on HDR

I can and have. I've had this TV for about a year and I've had other Samsung TVs prior to that.

okay but do you still have 4k at 60 hz available with HDR

[Revelene]

Originally posted by Bad 💀 Motha:

Originally posted by Revelene:

I'm pretty sure that the highest HDMI on a GPU is 2.0b.

No its hdmi 2.1
It's on the gpu families I stated above. Google search takes just seconds of your life to find this out.

I did Google it. It showed specs showing 2.0b and a lot of forums talking about the need for 2.1 with the next round of gpus.

[darkkterror]

Originally posted by 76561198132278000:

Originally posted by darkkterror:

I can and have. I've had this TV for about a year and I've had other Samsung TVs prior to that.

okay but do you still have 4k at 60 hz available with HDR

Yes

https://i.imgur.com/rFwHbsD.jpg

[Rem4rk4ble]

Originally posted by darkkterror:

Originally posted by 76561198132278000:

okay but do you still have 4k at 60 hz available with HDR

Yes

https://i.imgur.com/rFwHbsD.jpg

thats strange you have 4 HDMI 2.0 ports. May I ask how you have you wiring routed? I noticed you have an AV receiver there. I separated my AV and tv signals for stability and to maintain 7.1 surround I'm curious as to what setup you are running.

[darkkterror]

I've always gone straight HDMI from the graphics card to the receiver and then receiver out to the TV. I briefly tried going straight HDMI to the TV when Nvidia added support for adaptive sync over HDMI (my TV supports Freesync) but that didn't work out so well.

[Rem4rk4ble]

Originally posted by darkkterror:

I've always gone straight HDMI from the graphics card to the receiver and then receiver out to the TV. I briefly tried going straight HDMI to the TV when Nvidia added support for adaptive sync over HDMI (my TV supports Freesync) but that didn't work out so well.

ah Ill see what happens when I go back to that. When I usto do that setup I didnt really know about HDR and what it did, I switched from it because my TV would black out intermitently, i asume it had something to do with the cable bandwidth but who knows. Will report back with results.

[Rem4rk4ble]

Originally posted by darkkterror:

I've always gone straight HDMI from the graphics card to the receiver and then receiver out to the TV. I briefly tried going straight HDMI to the TV when Nvidia added support for adaptive sync over HDMI (my TV supports Freesync) but that didn't work out so well.

interesting, when out putting from my av receiver I can run it at 4k 60HZ with HDR, in fact now I have access to chroma 4:4:4 and RGB 8 bit. I want to see however if I will still have intermitent blacking out of my screen. I do however thank you for commenting on this post, if you had not come by I would have never considered running that same wiring route

[[SK] Kaldaien]

Yeah, HDMI 2.0 is severely limiting your choices.

https://steamcommunity.com/sharedfiles/filedetails/?id=1984594927

DisplayPort 1.4 can do 12-bit RGB @ 4K.

[Rem4rk4ble]

Originally posted by SK Kaldaien:

Yeah, HDMI 2.0 is severely limiting your choices.

https://steamcommunity.com/sharedfiles/filedetails/?id=1984594927

DisplayPort 1.4 can do 12-bit RGB @ 4K.

I am limited to 8 bit in the RGB colorspace (not the others) but it is enough to activate HDR