HDR Certification not found

Elisyan · May 10, 2023

Hey guys

I bought a Samsung Odyssey G7 32" few months ago
I recently noticed Windows says HDR certification not found and shows 1499 peak brightness

I searched for possible solutions and learned that incorrect peak brightness might mess up HDR (is it true?)

I found a reddit post about my issue and some1 suggested to use a tool called CRU to fix it

I'm not expert at these things so I decided to ask u first:
Is it permanent change?
Is it dangerous?
What does it change exactly?
Should I do it?

link to post:

https://www.reddit.com/r/WindowsHelp/comments/pdsdux

link to suggestion:

https://www.reddit.com/r/WindowsHelp/comments/pdsdux/_/hujlmul

bobkn · May 10, 2023

Sorry, but I don't follow your post.

Do you mean that you are unable to enable HDR for your monitor?

RJARRRPCGP · May 10, 2023

You need to set the brightness and contrast to the maximum, manually.

bobkn · May 10, 2023

RJARRRPCGP said:
You need to set the brightness and contrast to the maximum, manually.

Huh?

I just checked with my current monitor. In HDR mode, the brightness is not set to maximum.

My monitor appears in the advanced display settings as HDR 400 True Black (1.1).

Elisyan · May 10, 2023

bobkn said:
Sorry, but I don't follow your post.

Do you mean that you are unable to enable HDR for your monitor?

HDR is already turned on

I wanted to know is there a problem if windows can't find the HDR certification and should I use the method to fix it?

Elisyan · May 10, 2023

RJARRRPCGP said:
You need to set the brightness and contrast to the maximum, manually.

You mean in monitor settings or nvidia control panel settings?
and you saying if windows detected correct certification, it would change these settings automatically?

RJARRRPCGP · May 10, 2023

Elisyan said:
You mean in monitor settings or nvidia control panel settings?
and you saying if windows detected correct certification, it would change these settings automatically?

Monitor settings, if it looks like poop. Same to get maximum brightness. The OSD!
Also Windows 11 usually will claim it's not even found.

Elisyan · May 10, 2023

RJARRRPCGP said:
Monitor settings, if it looks like poop. Same to get maximum brightness. The OSD!
Also Windows 11 usually will claim it's not even found.

Aha
I set it to 50% brightness and contrast when I bought the monitor ( suggested by hardware unboxed youtube channel )
I will try to test 100% for sometime to see differences

RJARRRPCGP · May 10, 2023

Set brightness and contrast to 100. Then get the Windows HDR Calibration app from the Microsoft store.

bobkn · May 10, 2023

Elisyan said:
Aha
I set it to 50% brightness and contrast when I bought the monitor ( suggested by hardware unboxed youtube channel )
I will try to test 100% for sometime to see differences

I expect that it will not help, but please let us know.

RJARRRPCGP · May 10, 2023

After setting the mentioned values to 100, the Windows HDR Calibration app will allow you to tune the maximum and minimum levels for HDR. After setting that up correctly, it should also be a lot easier to see the GUI menus.

Windows HDR Calibration is for most things you're doing, on a global level.

Then, if playing Halo Infinite, additionally use its HDR calibration tool to fine tune it further for Halo Infinite.

Elisyan · May 10, 2023

RJARRRPCGP said:
After setting the mentioned values to 100, the Windows HDR Calibration app will allow you to tune the maximum and minimum levels for HDR. After setting that up correctly, it should also be a lot easier to see the GUI menus.

Windows HDR Calibration is for most things you're doing, on a global level.

Then, if playing Halo Infinite, additionally use its HDR calibration tool to fine tune it further for Halo Infinite.

Do I need to choose maximum of 600 nits?

RJARRRPCGP · May 10, 2023

Elisyan said:
Do I need to choose maximum of 600 nits?

Just the maximum that looks right, without it looking washed out. And when asked for the minimum and it asks for the minimum brightness of a visible object, select where you can barely see it.

Yes, the maximum should be close to the maximum rating of nits, when you do so.

HDR Certification not found

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