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Old 7th July 2018, 07:23   #51664  |  Link
Manni
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Join Date: Jul 2014
Posts: 942
Quote:
Originally Posted by jmone View Post
Any, advice on MadVR / nvidia settings and versions for JVC X7500? After trying different combos of versions and settings I can't seem to find a combo that:
- Minimises Repeated Frames (eg custom modes or a nvidia version that is close)
- NVidia Settings that stick for RGB 12-Bit for both UHD@23.796 / YCbCr422 for UHD@50/60p (or just RGB 8-Bit as I only have the one UHD HDR BD @ 60p)
- Windows HDR that does not keep turning ON when the video finishes playing and you are back to the desktop

If the above can not be done, should I try HDR to SDR conversion in madVR, or... just use YCbCr422 for all resolutions, or.... ?

Currently I'm also "stuck" on madVR V92.4 (that comes bundled with JRiver) as the most recent madVR versions have a bug where Menu Item Text can be drawn off screen.... I've a 1070 on this HTPC.
  • Use 385.28 (that's the last driver that works well with the JVCs for HTPC use)
  • Use 2160p23 RGB 4:4:4 12bits at 23p for playback. The driver will automatically switch to RGB 4:4:4 8bits for 50/60p if you use 385.28 and it will stick.
  • While in another refresh rate (I use 30p), create a custom resolution with MadVR for 2160p23 using the EDID/CTA settings, that's the only thing that works with the JVC, it should give you around one hour without a frame drop/repeat at 4K23p
  • Do not use your projector at 1080p, these are NOT 1080p projectors unlike what has been suggested and you will lose a lot of MadVR's goodness if you do this. Send 2160p to the JVC (if your GPU is powerful enough to upscale in good quality to that resolution, which a 1070 should be able to do) and you'll get something like 3K (in between 2K and 4K, but significantly better than 2K thanks to eshift), especially when fed a well upscaled MadVR picture.
  • If you have a good custom curve for HDR (see the JVC Calibration thread for the RS500 etc models on AVS), you can use HDR passthrough in MadVR. Make sure you always leave HDR OFF in the OS, MadVR will switch HDR on and off automatically.
  • Or you can wait until MadVR's next build and use HDR to SDR conversion with pixel shader. It's still a work in progress but it's starting to be a viable alternative to passthrough with the JVCs. Wait until it arrives on jRiver, there is no rush to leave passthrough if you have good custom curves on your JVC.
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Last edited by Manni; 7th July 2018 at 07:30.
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