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19th October 2017, 07:33 | #46701 | Link |
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Hey guys,
maybe someone can help. I'm running Kodi 17.4 DSPlayer with madVR, LAV Filters, XySubfilter on Windows 10 with a Nvidia GT 1030 card and latest driver. Desktop resolution is set to 4K native with RGB full. HDR was not recognized. So i switched Desktop to 1080p with RGB full and 12 Bit. HDR was recognized fine and is switching on/off automatically. But i only can play one 4K file. If i stop the file and play the next one i will go back to my desktop in 4K resolution and the left top quarter is just black. Have to kill kodi in taskmanager. Then i switched back to desktop 4K resolution with RGB full. I noticed the colordepht entry is just grey, it did not switch back to 8 bit automatically. But HDR still plays fine on/off automatically, even after a reboot. So switching to 1080p and back to 4K is the resolution for HDR. My problem is TV Levels/PC Levels and normal SD, HD and 4K movies. When i set madVR to PC Levels normal SD and HD movies looking fine, but HDR is to dark and a lots of details are missing. When i set madVR to TV Levels normal SD and HD movies looking to bright or as they have to much contrast, but HDR is correct with right brightnes and colors. How can i fix this? Is it possible that madVR switch between PC and TV Levels depending on which kind of file is played? Maybe by a rule or something like that? Or do i need other settings in madVR? Thanks |
19th October 2017, 07:40 | #46702 | Link | ||
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19th October 2017, 09:50 | #46703 | Link | ||
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now levels. Quote:
so first of all you should make sure the levels are correctly setup for your screen. you can start here: http://www.avsforum.com/forum/139-di...libration.html the black clipping file is all you need. 16 has to be black if anything below 16 is visible you are most likely running TV level where it should be Pc levels. a file can be full range and that no problem as long as the file is correctly created with a full range flag if not it can only manuelly be fixed and the file could be considered broken. |
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19th October 2017, 13:31 | #46704 | Link |
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Hi,
I was thinking....... I know that amd is not the best for madvr, but rx460 is not a weak card. Seems that is not able to manage any artifact removal or upscaling that is not dxva. just activating reduce banding artifact adds 10ms and gpu goes at 100%. Seem a bit too much 100% gpu for this simple filter or for a bicubic upscaling from 1080 to 4k at 50fps Are we sure that amd doesn't need some coding modification for work correctly as done for HDR switching ? |
19th October 2017, 13:44 | #46705 | Link |
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AMD cards are generally good cards for madVR.
the problem are the newer AMD cards polaris has major problem with NGU. in the same price range AMD cards are usually faster than nvidia cards for madVR. but if i see this right you are using a rx 460 for UHD correct? well it is a 2Gb version? if yes you may just run out of Vram and there is little to nothing AMD can do about this. |
19th October 2017, 14:34 | #46709 | Link |
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Hi, started getting an odd problem recently, it either LAV or MADVR causing it but I cant decouple these to diagnose further. There seems to be a problem where changing back and forth from 1080p to 2160p and 3D I get a loss of handshake and I have to use DEVCON reset to get it back.
This is what happens (both KODI and MPC) I play a 3D movie, after a few seconds on a blank screen my TV switches 3D mode and plays the movies no problems. If I stop the movie the TV comes out of 3D mode and then I get black screen. If I put my HTPC into 1080p resolution this doesnt work so its something to do with how MADVR and LAV filters are dealing with refresh rate and resolution switching. Any ideas anyone? |
19th October 2017, 14:42 | #46711 | Link |
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@mclingo
lavfilter is not switching the resolution or refreshrate of your screen. so what windows version and GPU driver are you using. there was an windows 10 insider build back in the days that did just that for me with every resolution change. |
19th October 2017, 14:55 | #46712 | Link |
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I think full hd to 4k upscaling, with most default bells and whistles activated, is an impossible task for the RX 460. It was only designed for full hd gaming after all. You might have to think of madvr full features performance in a similar mindset to gpu video gaming performance.
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19th October 2017, 15:53 | #46714 | Link | |
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Quote:
Last edited by HillieSan; 19th October 2017 at 16:03. |
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19th October 2017, 15:57 | #46715 | Link | |
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Quote:
Last edited by HillieSan; 19th October 2017 at 16:01. |
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19th October 2017, 16:27 | #46716 | Link | |
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I gave up my RX 480 in favour of the power saving on the RX 550, this was a really bad idea as it turned out, its pretty weak with MADVR, pretty much had to move down to laczos on everything, it never occurred to me how much GPU MADVR was using. |
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19th October 2017, 16:30 | #46717 | Link | |
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it also happended when I switch my desktop from 1080p to 2160p manually so it may in fact be a windows 10 or ATI problem, I might roll back some GFX drivers this weekend. |
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19th October 2017, 16:53 | #46718 | Link |
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madvr is dependent on various component like Vram, shaders performance, FLOPS. It's one of the reason why I still stick with an r9 290x. Though it's getting really long in the tooth now and I'm considering a change of gpu.
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19th October 2017, 17:46 | #46719 | Link | |||||
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Thank you all for the answers and i want to say madvr is the best in smoothness (if i use all DXVA) and colors, much much better than EVR
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Anyway i'm going to try the other proposed tweaks. Last edited by mrmojo666; 19th October 2017 at 22:08. |
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19th October 2017, 18:21 | #46720 | Link |
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Afaik with D3D11 native decoding (GPU) deinterlacing is still not implemented in madVR. So atm its not recommend for pal broadcast. Hope we will see deinterlacing with D3D11 sooner or later, because D3D decoding works really well for me with AMD RX hardware.
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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