Usually a lurker, but proud to say I'm the owner of this beautiful projector since last Friday! The picture is gorgeous, coming from a JVC X7500 (RS520) and a Sony VW500ES (VW600ES) before that. Black levels, sharpness, colours, everything picture quality wise is superb. My dealer already prepared the service menu 'trick' for me to get rid of the green smearing discussed in the other topic, so I wasn't bothered by that.
HOWEVER, and this is a serious problem for me, 23p (and also 24p) mode in UHD resolution (3840x2160) using a PC (WIN10) is not working correctly. It looks like a HDMI handshake problem of some sort. Sometimes it works, sometimes it doesn't and always sooner or later the problem is returning. E.g. after a while playing (usually within a couple of minutes) a movie or just a static Win10 desktop at those framerates, the screen goes black (one half, then the other, then total). I tries to reconnect or handshake again and again, mostly unsuccessful. I tried all the different colorspaces and dynamic ranges available in Windows, tried all options in de VW760 (standard/enhanced mode, dynamic range limited/full), none successful. Tried re-installing Windows10, different Nvidia drivers, with AVR (Denon X7200WA) in chain or direct connecting PC to VW760. Nothing works.
Important to notice is that 50p and 60p in RGB-FULL (8bit) work just fine, also switching between these. And I'm also pretty sure it doesn't have anything to do with my playback chain or cables. I've used this exact setup with my previous JVC X7500 (also full 18gbit). My typical usecase (as advised by the creator of Madvr) is using RGB-FULL 60p 8bit for desktop use and RGB-FULL 23,976 (23p in Windows) 12bit for 24p content, which my JVC did without any problems.
comments about the strange EDID behaviour trigger me. As further investigating leads me to believe there's either something wrong with the EDID or it has problems with the full 18gbit bandwidth. So just now I tried to read out the EDID for the Sony and this looks really off. It says manufacture date 2013, no uhd/4k resolutions specified.
Maybe my PC does force a EDID read out frequently and is this causing my problem? And the Shield and X800 don't do this? Any ideas?
Next I might try a Win10 EDID override in the registry. Maybe that works...
My complete setup:
HTPC (win10, nvidia 1080ti gpu, madvr)
Denon X7200WA AVR
Certified full 18gbit HDMI cables