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Old 9th June 2018, 13:28   #51261  |  Link
madjock
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Quote:
Originally Posted by XTrojan View Post
Is it normal for composition rate to be 60Hz at Exclusive FullScreen mode when the display is at 23.976?

Whenever I switch back to windowed or normal fullscreen composition is 23.976 (normal)
Think thats an indication bug that happens sometimes rather than it actually going to 60Hz.
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Old 9th June 2018, 13:30   #51262  |  Link
XTrojan
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Originally Posted by madjock View Post
Think thats an indication bug that happens sometimes rather than it actually going to 60Hz.
So it's nothing to be worried about? The TV is set to 23.976
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Old 9th June 2018, 13:31   #51263  |  Link
XTrojan
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Originally Posted by huhn View Post
what windows version is used and is it a dual screen setup?
Windows 10, single screen.
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Old 9th June 2018, 13:32   #51264  |  Link
huhn
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you usually get huge playback problems and judder.
thsi depends heavy on the windows version and the number of screens.
for some setup there are work arounds for some there are none.


edit:

for win 10 you can try different version of it and make sure you are using the newest driver. in term of desktop composition it is a total disaster that changes with every WDDM version.
overlay rendering should be immune to issues from composition rates.
BTW win 8 fixed this issue completely but well they broke it for 10 again.

Last edited by huhn; 9th June 2018 at 13:34.
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Old 9th June 2018, 13:41   #51265  |  Link
XTrojan
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Quote:
Originally Posted by huhn View Post
you usually get huge playback problems and judder.
thsi depends heavy on the windows version and the number of screens.
for some setup there are work arounds for some there are none.


edit:

for win 10 you can try different version of it and make sure you are using the newest driver. in term of desktop composition it is a total disaster that changes with every WDDM version.
overlay rendering should be immune to issues from composition rates.
BTW win 8 fixed this issue completely but well they broke it for 10 again.
Weirdly enough I got no judder or playback problems at all.

I use latest version (windows 1803)
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Old 9th June 2018, 13:52   #51266  |  Link
nevcairiel
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If you are in FSE mode, then you would not have any composition rate, since the entire point of FSE is to avoid the compositor.
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Old 9th June 2018, 13:53   #51267  |  Link
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Quote:
Originally Posted by XTrojan View Post
It's a JS9000 I believe it can display around 65% of BT2020 colors.

But since it's configuered for BT709 you're saying the colors outside that will be clipped?
Yes.

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Originally Posted by XTrojan View Post
Is it better to just change the color space to "native" on the TV? Is there any point "calibrating" for Rec2020 [...]?
Native is what would make the best use of the available bit depth against the real gamut your screen can display, but obviously it's not a standard so you'd need to provide madVR with 3DLUTs for your screen for all the standard colour spaces so it could map each to your native gamut.
But 3DLUT can cause issues as several people have shared here (and you need software that can generate them), so I think the best would be to calibrate your screen to the standard closest to, but bigger than, its native gamut, so probably DCI-P3 (or BT.2020 if the native gamut goes beyond DCI-P3 but I doubt this is the case) and then choose that as a gamut setting under the "this display is already calibrated" option. madVR will then map all content to DCI-P3 which your screen will be calibrated to so you'll still have correct colours with BT.709 encoded content but less clipping with BT.2020 encoded content.

Quote:
Originally Posted by huhn View Post
for win 10 you can try different version of it and make sure you are using the newest driver. in term of desktop composition it is a total disaster that changes with every WDDM version.
My 2 cents, using Win10 on NVIDIA: whatever the driver version, I always got perfect playback (no glitches) in windowed mode with 1607 and 1703. Since updating to 1709 I sometimes get one or two presentation glitches per movie but I never notice anything when watching so I don't know how exactly they manifest in practice.
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Last edited by el Filou; 9th June 2018 at 14:01.
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Old 9th June 2018, 14:08   #51268  |  Link
huhn
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Originally Posted by nevcairiel View Post
If you are in FSE mode, then you would not have any composition rate, since the entire point of FSE is to avoid the compositor.
even than it can break it and should not do this but this is clearly happening i mean you are not supposed to have a composition rate in FSE.

i personally only saw any issues with dual screen setup which depends heavily on the OS and driver version and my HTPC was not effectted by this ever.
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Old 9th June 2018, 14:12   #51269  |  Link
XTrojan
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Originally Posted by el Filou View Post
Yes.

Native is what would make the best use of the available bit depth against the real gamut your screen can display, but obviously it's not a standard so you'd need to provide madVR with 3DLUTs for your screen for all the standard colour spaces so it could map each to your native gamut.
But 3DLUT can cause issues as several people have shared here (and you need software that can generate them), so I think the best would be to calibrate your screen to the standard closest to, but bigger than, its native gamut, so probably DCI-P3 (or BT.2020 if the native gamut goes beyond DCI-P3 but I doubt this is the case) and then choose that as a gamut setting under the "this display is already calibrated" option. madVR will then map all content to DCI-P3 which your screen will be calibrated to so you'll still have correct colours with BT.709 encoded content but less clipping with BT.2020 encoded content.

My 2 cents, using Win10 on NVIDIA: whatever the driver version, I always got perfect playback (no glitches) in windowed mode with 1607 and 1703. Since updating to 1709 I sometimes get one or two presentation glitches per movie but I never notice anything when watching so I don't know how exactly they manifest in practice.
So for now just put it to "disable calibration" and TV settings to native or "auto".

HDR calibration seems way too tricky for me.
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Old 9th June 2018, 14:35   #51270  |  Link
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Originally Posted by ryrynz View Post
Screenshot your OSD plz.
Please take a look.
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Old 9th June 2018, 14:48   #51271  |  Link
huhn
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you play a 60 fps file at 30 hz and your rednertimes are way to high they need to be below 16 ms.
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Old 9th June 2018, 14:59   #51272  |  Link
Xaurus
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Hey guys, been a while.

I am trying to setup a complete 10-bit 4:4:4 chain on my setup, to play HD and UHD with HDR on my LG B6 OLED TV.
I'm using Win 10 1803, madvr 92.14 and nightly LAV with last MPC-HC. Nvidia driver 385.28 for my GTX 1060, using a custom res for 23 Hz.

I have been following a kodi setup guide which has some of this stuff. But it seems something is wrong since when my TV switches to HDR mode (icon pops up and madvr shows NV HDR) I get green/magenta tint on the whole screen output, desktop as well as the video. I have to go to Nvidia control panel to change the refresh rate or resolution to get it "back to normal". This does not happen for normal SD/HD content.

Settings as follows:

TV:
I am using "PC" label for the HDMI input for the OLED and I've activated Deep Color on HDMI 1 (which is the one I use). Set to "High" to receive 0-255 signals.

Madvr 0.92.14:
PC levels 0-255
native display bitdepth set to 10-bit
disable calibration controls
switch to matching display mode 2160p23, 2160p25, 2160p29, 2160p30
let madvr decide for HDR (also tested with passthrough, same result)
use Direct3D 11 for presentation

Nvidia control panel:
12-bit output for all resolutions (10-bit is not an option, only 8 and 12), with RGB Full

LAV video:
D3D11 Hardware Decoder (automatic native)

Does anyone know of a complete guide how to get this right, in particular for LG OLEDS?

Thanks.
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Last edited by Xaurus; 9th June 2018 at 15:02.
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Old 9th June 2018, 15:40   #51273  |  Link
COOLak
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Originally Posted by huhn View Post
you play a 60 fps file at 30 hz and your rednertimes are way to high they need to be below 16 ms.
Forgive me my ignorance, but the data says that the file is 30hz and not 60. And how do I adjust my rendertimes?
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Old 9th June 2018, 16:05   #51274  |  Link
huhn
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the data says it is 30 before deinterlancing and deinterlancing is doubling the frame rate.

and about your rendertimes so i see nothing why it is so high i have no clue what type of hardware you are using.

smoothmotion at 30 hz with a 60 hz source my needs a lot of processing power but i never really checked that.
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Old 9th June 2018, 16:58   #51275  |  Link
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Quote:
Originally Posted by Xaurus View Post
I am using "PC" label for the HDMI input
Does anyone know of a complete guide how to get this right, in particular for LG OLEDS?

Thanks.
The complete guide says NOT to change your HDMI input to "PC". I guess this is a requirement on your LG. Samsung which I use, it isn't. I would also add 2160p24 as a resolution/rate madVR can switch to. Yours is missing. And if after you manually switch resolution/rate in NCP it fixes, then I guess it isn't auto switching. I assume adding the resolution/rate so it can switch would help provided that is the problem resolution/rate. I'd also try without the custom res. You might also try FSE vs windowed although that makes no difference on my panel. Lastly try BT709 with PPC at 2.20 passing through and sending metadata.
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Last edited by brazen1; 9th June 2018 at 17:30.
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Old 9th June 2018, 16:59   #51276  |  Link
huhn
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but he wants 4:4:4.
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Old 9th June 2018, 18:19   #51277  |  Link
Warner306
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For the green/magenta tint, try disabling HDMI Deep Color. It could also be the custom resolution. In fact, that seems most likely. The LG OLED shouldn't have an issue with receiving RGB 12-bit with HDR metadata. Some projectors add this tint when set to anything besides Y'CbCr. Either the GPU is outputting this tint or the TV is misinterpreting what it is receiving.

Asmodian says the gamut coverage in PC mode with LG OLEDs is poor compared to the video modes. This was measured with a colorimeter. It might be worth sacrificing 4:4:4 for better color representation.

I would also suggest trying another hardware decoder, but it shouldn't fix things by changing the resolution.

Last edited by Warner306; 9th June 2018 at 18:24.
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Old 9th June 2018, 20:21   #51278  |  Link
BluesFanUK
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Three years on and i'm still having an issue with Full Screen Exclusive.

I just bought a new 32 Inch monitor (Acer BM320), 10 bit panel so I thought i'd give FSE a try again. On my very old 27 inch 4K screen it was such a hassel I ended up disabling it for good.

Still a mess. I'm using Potplayer with FSE enabled and FSE D3D11 in MadVR, issues:

- It takes several seconds to load a video
- Mass load of dropped frames whilst doing it (same when scrubbing through a video)
- No easy way to close the damn thing without clicking the escape button to window it, then close.

Have I done something wrong with my settings because to me for years it's felt like a completely pointless feature for the hassel is causes, yet it's the only one that allows 10 bit.
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Old 9th June 2018, 20:34   #51279  |  Link
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FSE should be dropped.
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Old 9th June 2018, 20:35   #51280  |  Link
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FSE works great in Windows 8.1, it is Windows 10 that seems to have broken it.
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