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21st September 2018, 14:05 | #52642 | Link |
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I'm probably going to continue using HDR pass-through as that seems the only way to utilize the higher brightness levels of my LG B7. HDR to SDR looks very good now for tone-mapping, but the brightness in SDR holds it back. I also utilize the dynamic tone-mapping on the TV to bring it closer to how it would look like in Dolby Vision. Are there any plans to add dynamic tone-mapping (if even possible) for HDR pixel processing to HDR output? Also, I didn't notice it in the profile variables, can display bitdepth output be added as a parameter? I'm currently using display refresh rate to decide between 8/10 bit output from madVR.
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21st September 2018, 15:32 | #52643 | Link | |
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Part of the problem is that madVR may send a value to the display that is supposed to be shown at an exact nits and the display's tone mapping curve may be designed to show the same PQ value at a different brightness. I'm not sure how the Panasonic "HDR Optimizer" gets around this. It only seems to impact the top of curve in the screenshots I've seen. I would think this feature would only work well for displays that closely follow the PQ curve and roll-off. Edit: I looked at a review of the Panansonic pre-tone mapping feature that also used an LG C7 and it was tone mapping the result to a preset of 1,000 nits. So it was actually above the brightness of the display when the reviewer was glowing about its effectiveness. I don't know how sending a signal with an altered brightness response is tone mapped by a display expecting a standard brightness response from a standard PQ source.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players Last edited by Warner306; 21st September 2018 at 18:45. |
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21st September 2018, 16:32 | #52644 | Link |
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i've had all sorts of issues since the latest MADVR update, black screens HDMI loss mainly but also on occasion MADVR failing to load at all, I ended up going back to AMD 18.8.1 and MADVR v0.92.14
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LG OLED EF950-YAM RX-V685-RYZEN 3600 - 16GBRAM - WIN10 RX 5700 - https://www.videohelp.com/software/madVR/old-versions |
22nd September 2018, 03:39 | #52645 | Link | |
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I can’t understand why you are interested in this hobby when your PC breaks every month or so. I just play stuff almost every day and watch it. I don’t know why you seem to have so many issues. You would have to narrow down the exact driver version and all of the exact settings to reproduce the issue and madshi would to have somehow reproduce the problem.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
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22nd September 2018, 13:55 | #52646 | Link |
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Hmm, on the latest madVR if I uncheck "use Direct3D 11 for presentation" and switch to non-FSE fullscreen mode, my screen flickers black. With D3D11 enabled everything is fine. That's on Windows 10 r1803 with a GeForce GTX 1080 and driver version 399.24 (heard people were having issues with the new 411 series so I haven't updated yet). I don't think v0.92.14 had this issue but I haven't checked yet.
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Test patterns: Grayscale yuv444p16le perceptually spaced gradient v2.1 (8-bit version), Multicolor yuv444p16le perceptually spaced gradient v2.1 (8-bit version) |
22nd September 2018, 19:02 | #52648 | Link | |
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watching movies is the hobby, how I get my machine stable isnt. i've had some bad luck with hardware, i'm also pretty skint so everything I buy is used so that does lead to some extra issues. However, if I just left my machine as is i'd have no issues as I have workarounds. Whenever a new driver or madvr release comes out I feel the need to test it to see if it cures either of my two issues which i've had for ages, the colour sat issue and the HDMI loss coming out of 3D movies. You'd think simply rolling back would revert everything back to working again but this is rarely the case, I do usually manage to get back to working fairly quickly though. I dont know what else I can give MADSHI to help with either issue to be honest, I've asked, perhaps if more people had the problem MADSHI could give it some time but it appears there is a small subset of people with similar hardware, setups and players. I cant blame MADSHI for wanted to give both issues a low priority as there only seems to be me and maybe 1 or 2 other people with the colour sat issue, so few people play 3D MVC movies theses days this is an even smaller dwindling subset and so I doubt my black screen HDMI loss issue with ever be fixed. Because i'm here a lot it probably seems like I have a lot of problems., I dont really, at the end of the day i have a fully working system and thoroughly enjoy using it on a daily basis.
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LG OLED EF950-YAM RX-V685-RYZEN 3600 - 16GBRAM - WIN10 RX 5700 - https://www.videohelp.com/software/madVR/old-versions Last edited by mclingo; 22nd September 2018 at 19:06. |
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22nd September 2018, 20:17 | #52649 | Link | |
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Another issue (but I think that's just me, my set up) is that the colors don't look right, they don't pop. That also happened before, but turning on and off HDR in madVR settings could fix it, now I can't figure it out |
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23rd September 2018, 04:21 | #52652 | Link |
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All working great here, thx madshi!
LG 55" 4K TV OS HDR Enabled 12-bit YCbCr 4:2:2 using HDMI 2.0a GTX1060 on driver 411.63 WHQL Windows 10 x64 1803 madVR v0.92.16 in D3D11 fullscreen Windowed mode (10-bit) I was previously using 8-bit RGB Full range (via nvidia control panel) but when I switched over to 10-bit YCbCr 4:2:2 I noticed that all banding was completely gone. I then tested 12-bit YCbCr 4:2:2 and had no issues so I'm going to stick with it for now (my TV panel is probably 8-bit with FRC, lol) even though I'm likely not gaining anything. I have always had madVR set to remove banding artifacts (on 'high') and dithering with DX11 but the banding comes back when output is set to 8-bit RGB. Colour accuracy vs no banding, I'll take the no banding option. |
23rd September 2018, 10:02 | #52654 | Link |
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rules for that option:
1. never higher than what you set the display output of your graphics card to (the GPU itself would then dither down instead of madVR - bad) 2. the display output bit depth of your graphics card should be set to what you know your TV accepts and doesn't process down, otherwise your TV would also dither down instead of madVR (also bad). If you don't know for sure that second information, choose 8 bit everywhere. (Edit: some people argue that some displays have temporal dithering (FRC) as good as madVR's dithering, but I would need to see a side-by-side test to be convinced)
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HTPC: Windows 10 22H2, MediaPortal 1, LAV Filters/ReClock/madVR. DVB-C TV, Panasonic GT60, Denon 2310, Core 2 Duo E7400 oc'd, GeForce 1050 Ti 536.40 Last edited by el Filou; 23rd September 2018 at 10:05. |
23rd September 2018, 14:16 | #52655 | Link | ||
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Quote:
Quote:
I've checked all my settings and nothing has changed, cant work it out at all.
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LG OLED EF950-YAM RX-V685-RYZEN 3600 - 16GBRAM - WIN10 RX 5700 - https://www.videohelp.com/software/madVR/old-versions |
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23rd September 2018, 15:06 | #52656 | Link |
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Just did a clean reinstall of windows 10, MPC-HC, Lav and MadVR.
Everything was working fine before - now I can only get HDR passthrough to my LG OLED in windowed mode, going full screen turns it off. Is this because of new Nvidia drivers? I'm about to go out so don't have time to read the last few pages. i5-6600 GTX 970 LG 950/9500 OLED Edit* ticking automatic fullscreen exclusive mode brought back HDR in full screen Last edited by famasfilms; 23rd September 2018 at 15:13. |
23rd September 2018, 16:17 | #52658 | Link | |
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Quote:
If you check the OSD, it should report what madVR thinks it is sending.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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