[Knight77]

I see W10 is forcing NVidia driver update to the latest release.  I didn't even know it installed until I noticed playback was completely wiped out after booting my HTPC today.  We don't want to use the new driver.  HDR is broken.  We want to use 385.69 we've been using until the problem is resolved.  In case this is happening to you also, here's what I did:

I forgot a Windows setting to adjust after installing the FCU.  Type Advanced system settings into your search box.  Select View advanced system settings control panel.  Select the Hardware tab.  Select Device installation settings.  Select No and save changes.

Now go to Start button and right click.  Select Device manager/Display adapters/Nvidia/Driver tab/Roll back driver and click OK. 
After a bit, 385.69 will install and Windows should not try to update it again.

You'll need to reconfigure the driver color space settings.  All your other settings probably retained.
Select YCbCr422 and save.
Select 12bpc.
Select RGB.
Select FULL
Save.

You'll need to enable 3D again:
Right click desktop.
Select Display settings.
Turn 3D display mode ON.
Go to madVR folder.
Run 'enable nvidia 3d.reg'

Hi,

I've got a GTX1070, Sony 4k TV and Pioneer LX59 AVR capable of Ultra HD Pass-through with HDCP 2.2 (4K/60p/4:4:4/24-bit, 4K/24p/4:4:4/36-bit, 4K/60p/4:2:2/36-bit), using Windows 10 last update.

If in nVidia settings I set the desktop to RGB Full 8bit everything works fine. If I try to set it to ybcr 422 12bpc (or 10) the green on desktop looks really pushed and if I play Kodi (with Dsplayer+madvr) or MPHC+madVR fullscreen the movie looks black white and green, no other colours. If I don't play it in fullscreen but like windowed it's fine (but proprieties shows 8bit). 

I read that with my config and content (fullhd and 4k) it would be better to go with YBCR 4:2:2 12bpc but I got this problem and I'd like to solve it even if don't know why. Tried to change HDMI cable, that was already good, and nothing changed. 

Any idea? 

Hope so....thanks!