HDMI Black level

[Members_OF2OIxh]

When using build in apps. Like apple tv+/Netflix and more The settings HDMI Black level is set to low.

I need it to be set to normal.

If I use my apple tv as source HDMI levev is set to Auto. Same here, I need to set it to normal.

I can't change the HDMI settings as it is grated out. Anyone know how to set the HDMI black level?

I have an Samsung QN85a modell 

[xSteveuk]

Hi,
This page maybe helpful

Get the Best Picture on Your QLED and UHD TV

https://www.samsung.com/us/support/answer/ANS00082465/

[AndrewL]

@Members_OF2OIxh: The HDMI Black Level settings are only available for external devices connected to the TV via HDMI. To adjust the picture to your preference while using applications, please head to Settings > Picture > Expert Settings. 

[Marty1111]

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@AndrewL wrote:

The HDMI Black Level settings are only available for external devices connected to the TV via HDMI. To adjust the picture to your preference while using applications, please head to Settings > Picture > Expert Settings. 

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I have a laptop connected over HDMI. The blacks don't look black, but dark grey. (The blacks of the on-screen settings menu looks more black, than the blacks on my PC windows. It's Linux and uses an RGB 4:4:4 color encoding))

I want to adjust my the Black level on my Samsung XL2370HD screen as you described, but the option "Black Tone" is greyed out (see pictures).

How can I make the blacks look really black on my Samsung screen?

Pictures:

The laptop is connected over HDMI, so is an external device to the screen:

 The option to modify Black Tone is greyed out: