[Cinephile]

Hi!

Same as Alcarimon, I have been using this amazing guide for years now, and never had an issue until today: 

I made a clean installation of Win 10 (Version 2004), and now HDR content only works if I turn on the Windows HDR option. If I turn that option off (as I used to do) and play a movie, the colors look washed out, but my TV actually change to HDR, is like madVR is sending the meta data but for some reason colors are not right.

I am using a NVIDIA GTX 1660 Ti with the latest drivers (same as I was using before installing the 2004 upgrade).

Any heads up on how to solve the issue?

Thanks and regards,

It is a known issue. Nvidia's latest drivers have changed the API such that madVR no longer knows what to do with it. Apparently Nvidia will be providing a fix in their next driver update.

Meanwhile, I have put together an AHK script that is mapped to a button on my Harmony remote. It will trigger Windows HDR with a single press prior to watching a movie.

@Cinephile , would you be willing to share your AHK script? Thank you in advance.  I would like to do exactly as you are doing while nVidia provides a fix.  

Regards,

Bart

No worries. I can't find a way to upload attachments so here are the contents for you to copy and paste. Note that I started off with a .vbs file that toggles HDR on or off. But for some reason Windows is unable to have that sequence run automatically when mapped to a keyboard shortcut. So then I added a .ahk script that activates the shortcut - does that make sense? I wasn't knowledgeable enough to translate the entire script into an AutoHotkey sequence. But the result is the same.

.vbs file named HDR on.vbs:

Set oShell = CreateObject("WScript.Shell")

oShell.Run("""ms-settings:display""")

WScript.Sleep 2000

oShell.AppActivate "settings"

WScript.Sleep 100

oShell.SendKeys "{TAB}"

WScript.Sleep 60

oShell.SendKeys "{TAB}"

WScript.Sleep 60

oShell.SendKeys " "

WScript.Sleep 3000

oShell.SendKeys "{TAB}"

WScript.Sleep 50

oShell.SendKeys " "

WScript.Sleep 50

oShell.SendKeys "%{F4}"

.ahk script:

^!x:: ;Ctrl+Alt+X
Run, "D:\Backup\Launchbox\HDR on.vbs"
return

Replace the path with the location of your your .vbs file. This will map Ctrl+Alt+X to toggle HDR. I then used Flirc to map the keyboard shortcut to a button on my Harmony remote and voila.

If all works well make sure to put the .ahk script into your startup folder so that it's always active.