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6th July 2018, 06:02 | #51643 | Link |
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it'd depends on how you look at it 8/10 encoding.
it'S 10 vs 18 or 8 vs 14.4. sample hold displays don't flicker end of story i know what you are talking about "judder" but 60 hz doesn't fix this it's madVR fixing this issue. and mybe it was 24/25 only. and to be fair the HDMI spec is not crystal clear. 4:2:0 is only part of 50/60 HZ and doesn't work with lower refreshrates. and 10 bit or higher may only work at HDMI chips with HDMI 2.0 "support" like nvidia has. not here to promote HDMI 1.4 HDMI 2.0 is clearly better and it would be sad if this isn't the case but this doesn't change that devices try to run in a mode that has the bandwidth of HDMI 1.4. |
6th July 2018, 10:25 | #51645 | Link | |
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I think i'll drop to high though anyway as the card gets a tad noisy with the weather the way it is right now, it was 30degrees in my lounge last night, I could fry an egg on my HTPC !.. Thanks all for your responses. |
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6th July 2018, 23:16 | #51647 | Link |
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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. |
7th July 2018, 00:39 | #51648 | Link | |||
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However, this is assuming your projector does not use 4:2:2 internally. Use the http://madshi.net/madVR/ChromaRes.png. It is 1920x1080, view it at 100%, no zoom/resize. Quote:
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However, I would still much rather send my TV 8 bit RGB over 12 bit 4:2:2, unless it was in a mode that used 4:2:2 processing internally, even for HDR. Using 4:2:2 blurs two out of three image planes to 50% of their resolution horizontally. This damages the two chroma planes a lot. Humans do see color weirdly but this is still worse than well dithered 8 bit. The source is 4:2:0 but madVR has very good chroma upscaling, especially with a 1070.
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madVR options explained Last edited by Asmodian; 7th July 2018 at 00:42. |
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7th July 2018, 01:07 | #51650 | Link |
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Does it use 4:2:2 internally if you send it 12 bit RGB?
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madVR options explained |
7th July 2018, 02:02 | #51651 | Link |
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You might want to wait for the next build and try HDR -> SDR. It should be available soon and there is still room to improve.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
7th July 2018, 05:01 | #51652 | Link |
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@Asmodian: Neither 4:2:2 or 4:4:4 appear when displaying chromares.png (nvidia set to 1080p, RGB at any bitdepth). There is some slight horizontal lines where 4:2:2 would appear.
@Warner306: I presume you are refering to the discussion over at AVS with madshi on the Madvr HDR to SDR mapping thread? |
7th July 2018, 06:08 | #51653 | Link |
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Is that your native resolution? You need everything at its native resolution, the image in a window if necessary.
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madVR options explained |
7th July 2018, 07:23 | #51655 | Link | |
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Win11 Pro x64 b23H2 Ryzen 5950X@4.5Ghz 32Gb@3600 Zotac 3090 24Gb 551.33 madVR/LAV/jRiver/MyMovies/CMC Denon X8500HA>HD Fury VRRoom>TCL 55C805K Last edited by Manni; 7th July 2018 at 07:30. |
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7th July 2018, 08:00 | #51656 | Link |
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@Asmodian Sorry - thought you meant the native res of the PNG. The JVC x7500 takes a native 4K signal but it uses e-shift to display a 4K image (native 3xDILA 1080p Panels). Anyway with UHD RGB I can see both 4:2:2 and 4:4:4 but 4:4:4 is darker. The tint also changes between 8 and 12 bit with 12 Bit looking Pinker and 8 Bit looking Red.
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7th July 2018, 08:31 | #51658 | Link |
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Make sure you use DDU in safe mode and select clean installation before installing 385.28. You want every trace of the newer driver to be removed.
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Win11 Pro x64 b23H2 Ryzen 5950X@4.5Ghz 32Gb@3600 Zotac 3090 24Gb 551.33 madVR/LAV/jRiver/MyMovies/CMC Denon X8500HA>HD Fury VRRoom>TCL 55C805K |
7th July 2018, 08:41 | #51659 | Link |
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Yup done that (DDU in safe mode) and it is looking good using what you just posted (just running a UHD BD now to check the frame repeats). The only stuff that I guess will not work is titles like Billy Lynn (UHD @ 60p with HRD). I've read the JVC Calibration thread and got the Spyder5 Ultra ready to go now that the basic config seems to be working well - Thanks for the clear post all in one place
Edit - and resetup and test BD - 3D Last edited by jmone; 7th July 2018 at 08:48. |
7th July 2018, 08:51 | #51660 | Link | |
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try the sharpness settings out like said before. seeing both is a clear indicator of subsampling and most likely sharpening looks like newer ones use 1080p native not 1960x2160 native so they have to shift more to get to the same result but if done correctly it is the same as a native UHD image just less bright. the sub sampling test should work at 1080p too. |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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