GraphicCard with selective HDR Output?

Discussion created by ghostdog on Jul 15, 2020

Hi together!


I would like to ask for your help regarding the following use case:


I tried to enable the Windows 10 HDR option while have connected one or more secondary non-hdr monitors connected.

In my case all my screens went off, and I have to hard remove the non-hdr monitor to retrieve a video signal on my HDR monitor.

Now and therefore I had a chat with the XFX support (I own a XFX Radeon RX 570 8GB) over the last days - the answer was "throw away your non-hdr displays, if you want to go with win10 and enabled HDR".

My question: 

As Win10 offers me to enable / disable HDR per display, but the card manufacturer is saying that they only provide HDR on / off on all output channels (DP1, DP2, HDMI in my case) ..

.. Should I expect that the current radeon driver supports and respects a selective HDR signal per output channel (independent from the GPU I am using)? 
.. Should I expect that the card manufacturer support that feature on the hardware level ..

How would I can figure out if any *new* GPU supports something as selective HDR output?   


Kind regards,



My current card:

RX - 570P8D

SN: T3Y002770

GPU - Radeon RX 570 Series - Primär/Diskret

VRAM - 8192 MB - GDDR5 1750 MHz

Graphics Card Manufacturer - Powered by AMD

Graphics Chipset - Radeon RX 570 Series

Device ID - 67DF

Vendor ID - 1002

SubSystem ID - C570

SubSystem Vendor ID - 1682

Revision ID - EF

Bus Type - PCI Express 3.0

Current Bus Settings - PCI Express 3.0 x16

BIOS Version -

BIOS Part Number - 113-57085STB1-W90

BIOS Date - 2017/11/29 00:55

Usable Memory Size - 8192 MB


AMD Ryzen 9 3900X 12-Core Processor
32 MB 


My approach:

I have my primary monitor (Samsung C49RG9x) as DisplayPort1 

I have two secondary monitors (LG 27 UD 88-W) as on DisplayPort2 und HDMI


Those two LG's not supports HDR, the Samsung supports HDR 

If I turn on "Windows10 HDR Game and Apps" option all three monitors went black (no signal) 

The Samsung not recovers even if I manually switch off the LGs

Only if the LGs cable were removed from the card the Samsung recovers (with HDR enabled)