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Old 25th August 2019, 15:17   #57221  |  Link
mgermo
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Ok guys, did some more testing, sth is messed up.
More info, sorry for long post.
Connection: pc (amd, rgb full) - denon avr (enahnced hdmi for hdr on) - lg c8 (deep color for hdr on, settings for sdr and hdr per rtings recommendations, hdmi high). Madvr set up according to various guides - they are pretty much standard options.
In sdr mode when I put black clipping video via pc it shows only 21-25 (it should be 17 onwards), happens in low low, high high hdmi. If I make it low (pc) high (tv) it shows 17 onwards but reference black is gray. This is via mp - hc + madvr and vlc. p.s.: Just checked tv youtube clipping test and again it shows only 21-25. So I guess tv settings are to blame but what? I reset settings but no change. Seriously?
Lets move to hdr.
With OS HDR activated black clipping video works perfectly. Colors are vibrant. Picture is brighter. BUT even though in clipping video reference black is black in movies blacks are elevated (Star wars intro for example).
And then there's AMD HDR, with d3d11 it passes hdr through or does it? TV shows hdr badge but picture is no different than non hdr win mode vlc - too dark.
Sounds like i'm a noob that screwed up all settings but I did everything that i'm supposed to, but still there's some mistake in there. Where?
Any help is appreciated.
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Old 25th August 2019, 16:40   #57222  |  Link
mclingo
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ok, sounds like a mess, i'd start from scratch and leave MADVR and HDR out of it for now, just get SDR working correctly first. Set 8bit 444 full RGB, set your TV black level to HIGH, set brightness and OLED to 50. Set gamma to 2.2 also on TV. Play the black clipping pattern using MPC-BE with standard EVR renderer, how does it look now?
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Old 25th August 2019, 18:24   #57223  |  Link
mgermo
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Same, only 21-25 visible. But it seems with so many settings i forgot the obvious one - brightness. If I put it to 60 i see lines from 17. But 234 white clips. If i set gamma 1.9 i can get perfect white and blacks at 56 brightness and 90 contrast (as opposed to 85 which i had per rtings settings). So I keep 1.9 gamma, I guess?
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Old 25th August 2019, 18:58   #57224  |  Link
mclingo
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thats a workaround for now but something isnt set right somewhere on your PC or TV, if you state your black level is definately set to HIGH and you are in 444 FULL RGB then i'm lost, could be your GFX card is pumping out the wrong colour space, maybe try a full driver wipe and reinstall, what card is it?
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Old 25th August 2019, 20:16   #57225  |  Link
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He said it's the same with the built-in player as well. Lg screwed up the gamma in recent firmwares.
Which fw do you have?
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Old 25th August 2019, 20:57   #57226  |  Link
SamuriHL
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The 5.10.3 firmware fixes that issue for the most part.
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Old 25th August 2019, 21:24   #57227  |  Link
j82k
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Quote:
Originally Posted by mgermo View Post
Same, only 21-25 visible. But it seems with so many settings i forgot the obvious one - brightness. If I put it to 60 i see lines from 17. But 234 white clips. If i set gamma 1.9 i can get perfect white and blacks at 56 brightness and 90 contrast (as opposed to 85 which i had per rtings settings). So I keep 1.9 gamma, I guess?
Panel variance...

Just quoting Ted here:
Quote:
Some LG OLED's have passed the factory QC (Quality Control) with near black clipping issues and shipped to stores, for these panels it will be required to adjust the Brightness to 55-56 or up to 60-61 (in worst case scenario) from the default 50 value for the near black clipping issue to be resolved.
https://www.avsforum.com/forum/139-d...l#post58376964

I know people don't want to believe that there can be such a huge panel variance with LG Oleds and but I've experienced this with my own C8. The original panel had a very bright low-end and then I got a replacement panel (due to vertical banding) which had an extremely dark/crushed low-end at default settings.
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Old 25th August 2019, 22:03   #57228  |  Link
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so, I overclocked the graphics card and now it skips more during playback?
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Old 26th August 2019, 00:05   #57229  |  Link
el Filou
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maybe the video mode timings have changed?
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Old 26th August 2019, 02:18   #57230  |  Link
toki
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a few other thing's. I am still getting the pause freeze when trying to start the video on 1st try. I can't get it to stay in FSE when using my web browser and I'm not sure why.
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Old 26th August 2019, 03:31   #57231  |  Link
Warner306
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I get that with MPC-HC but not other players.
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Old 26th August 2019, 09:58   #57232  |  Link
mclingo
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i get that with mpc-hc too, no issues with KODI DS
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Old 26th August 2019, 16:50   #57233  |  Link
mgermo
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Thx for help. I guess i have one of those panels that need extra brightness. But no matter what I do amd hdr is darker than os hdr. I did reinstall drivers using ddu.

Last edited by mgermo; 26th August 2019 at 19:54.
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Old 27th August 2019, 09:58   #57234  |  Link
mclingo
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hold on, have you checked the black clipping pattern while using the youtube app on the TV, that will tell you once and for all if you have a panel issue.
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Old 27th August 2019, 11:57   #57235  |  Link
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Quote:
Originally Posted by mclingo View Post
hold on, have you checked the black clipping pattern while using the youtube app on the TV, that will tell you once and for all if you have a panel issue.
He did.
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Old 27th August 2019, 14:05   #57236  |  Link
mgermo
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Confirmed.
One more issue either with windows 10/gpu or madvr. In windows for tv i have set 3840*2160 resolution with 60hz refresh rate. In madvr i have set up to change hz according to source. That works. But when player exits and changes resolution back it changes it to 30hz instead of original 60hz.
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Old 27th August 2019, 15:26   #57237  |  Link
toki
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Quote:
Originally Posted by mgermo View Post
Confirmed.
One more issue either with windows 10/gpu or madvr. In windows for tv i have set 3840*2160 resolution with 60hz refresh rate. In madvr i have set up to change hz according to source. That works. But when player exits and changes resolution back it changes it to 30hz instead of original 60hz.
That was semi an error I forgot to report as well, only mine gets stuck on the refresh rate it changed to when exiting mpc-hc
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Old 27th August 2019, 23:04   #57238  |  Link
foozoor
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Nice new madVR logo!

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Old 28th August 2019, 02:42   #57239  |  Link
toki
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ok, 2 things. Does anyone know how to show chapter marks using mpc-be? The next thing is, has anyone tried interger scaling on an Nvidia graphics card?
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Old 28th August 2019, 04:02   #57240  |  Link
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Ewwww I've zero desire to integer scale. I'm sure that's a neat trick for ancient games or whatever but for video we have far more useful scaling in madvr.

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