Windows 10: Activating HDR in Windows 10 Bricked my PC

I recently purchased a new monitor with HDR support. I read online on this microsoft site to turn this on to go to the settings under display>HDR off>on. I switched to on to wait for a pop up message to say apply or maybe a warning saying "this system does no support HDR under current settings" . It did not give me a pop up window to test this for 15 secs as like ALL display changes do under control panel, instead my screen went black, with no display. My monitor even came up with a warning message " no input detected switching to power save mode". I even waited a couple of minutes

:)

 

HDR Washed out on Windows 10

That was suggested in post number 3 I thought?

 

HDR Washed out on Windows 10

I have a Sammy 4k HDR TV as a PC monitor. HDR works wonderfully with supported games. You want to switch the tv from PC mode though by selecting "edit" and then select bluray. Now HDR works as intended. Anytime an HDR signal is present the TV works fine. Do not activate it in windows 10. that doesn't work right.

This might not work for your TV but it is a known documented fix for mine.

 

HDR Washed out on Windows 10

I believe I've finally found something that works for HDR on Windows 10.

When on the desktop and in games that do not have an in-game option to activate HDR, got to Nvidia Control Panel then to Change Resolution.

After that, scroll to the bottom to option 3 and select Use Nvidia color settings. It should be set 32-bit RGB 8bpc Limited by default. Simply change the Output dynamic range from Limited to Full.

I definitely noticed a color change after doing this despite the TV not saying HDR in Info section.

Only do this for desktop or games that do not have an ingame option to activate HDR. If you do, it will look overly bright.

Also, make sure you have HDR on on your TV. In my case it was in Settings - General - External Device Manager - HDMI UHD Color then just select whichever input you have the PC plugged into.

My TV model is a Samsung UN40MU6300 and am now running on the latest Windows 10 build (1803), hope this helps someone!