Interesting find! I just posted on the Nvidia Forums, can you all please add to it as well? Here is the link!
NOT FIXED - Black Screen HDR After Adjusting Volume 1803, 1903, 1909, 2004
*UPDATE* March 2021
It appears there is light at the end of the tunnel. MS is working on enhancing the HDR feature on Windows 10 to another level. With that there should be massive improvements in the way its implemented and work with games and the OS (I HOPE). I've personally called MS and escalated this to one of their engineers. Hope is on the way, see article below.
https://devblogs.microsoft.com/directx/auto-hdr-preview-for-pc-available-today/
*UPDATE* June 2020
So if you install the latest Nvidia driver 451.48 or later combined with Windows 10 v.2004 it completely fixes the issue for me at least.. I see some post below of users saying it isn't working so I am changing the thread to not fixed.
I've tested past, current versions of Windows and scoured various forums for a fix. This is happening to many many people yet still not fixed... The Windows 10 Volume OSD turns HDR off or appears to have some sort of affect whilst adjusting the volume. When the Windows volume overlay appears on screen while HDR is enabled in fullscreen apps or games, the monitor goes dark. Once the overlay is off screen it turns back on. This is very annoying as I would like to use HDR without my screen turning off in the middle of competitive gaming. Also for what ever reason Nvidia Shadow play or recording doesnt work while HDR is enabled in Windows. Can someone make note of this and please fix it... I know this has been reported before but even on the insider additions of Windows the issues still resides.. :(
The only temp fix I can find is turning on your mouse trail in the mouse settings in windows.. This eliminates the issue but who the heck wants a mouse trail!
Windows for home | Windows 10 | Gaming
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
137 answers
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Anonymous
2020-05-06T20:11:42+00:00 -
Anonymous
2020-05-07T01:28:04+00:00 a simple solution is to just add a default HDR mode to windows, so the screen doesn't flicker no matter what, it's also annoying when u minimize a game or move the cursor in a video player
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Anonymous
2020-05-08T18:12:57+00:00 It would be nice if someone has had the same experience as i with the default windows driver.
Maybe someone can test it too
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Anonymous
2020-05-11T08:46:25+00:00 Yeah, the onl thing that fixes this is turning your mouse trail on, and I set it to the shortest setting so it's less annoying. But it's a stupid fix and I have no idea why it works whatsoever.
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Anonymous
2020-05-11T08:56:45+00:00 Such bugs are common due to inconsistency in the execution of fresh updates delivered to our Windows system.
These bugs would not be acknowledged by Microsoft until enough of is note it to Microsoft.
I have an issue as well.
After my device sleeps it takes around 10 minutes to wake it up and that too after multiple attempts.
I do not know what causes it but I am sure it is a bug introduced due to last updates.