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Old 12th December 2019, 19:40   #58141  |  Link
Klaus1189
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Originally Posted by Morgin187 View Post
keep helping people you helped me quite a lot
Thank you, I am glad that I could assist you
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Old 12th December 2019, 19:58   #58142  |  Link
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Thank you, I am glad that I could assist you
I also appreciate your advice and work you have put into all threads.

Dont worry about huhn, he knows his stuff and is also very helpful but he can come accross very brash sometimes.

Sure he doesnt mean to
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Old 12th December 2019, 20:06   #58143  |  Link
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Is there a way to save the 12bit RGB full color depth setting in nvidia control panel for 4k30hz resolution so that it gets selected during movie playback, even if the rest of the time the resolution is set to 4k60hz 8bit RGB full?
If I set the resolution to 4k30hz 12 bit RGB full and then change the refresh rate to 60hz, the 12bit color depth is selected during movie playback until the next reboot but I'd like a permanent solution for this.
I'm using the 4k30hz 12bit setting because that's the only way I get (almost) no color banding on my LG C9.
Do you really have "easy visible banding" when you let Madvr dither everything to 8bit and send this as RGB to your LG C9 ?
Something must be very wrong in this case !

I'm unable to see any difference related to banding between 8bit dithered RGB and any other 10-12 bit signal on my system.

I'd think that your LG C 9 must be the cause of banding : maybe some internal processing from the panel is causing the banding.

Have you tried "PC" mode on your LG ? Still banding visible ?
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Old 12th December 2019, 20:14   #58144  |  Link
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I don't get the question, do you mean displaying a 60 fps video or what exactly?
screen in different regions can have different panels making it hard to buy one.

everything on rtings can be wrong just because you have an german version.
Quote:
The Q9FN is nearly judder free. When playing 24p content through a 60i source, like from a cable box, the Q9FN was inconsistent in removing judder. In a 24 frame test, there is judder in only 2 of the frames. This probably won't be noticeable to most people. Like other Samsungs we have tested recently, this result is unexpected and we will retest this with future firmware updates.
See full details here:]
because this screen is supposed to fail in two test try this:
Quote:
The Samsung Q90R can remove judder from any source. To remove judder set Auto Motion Plus to 'Custom,' and Blur Reduction and Judder Reduction to '0' (if you don't want motion interpolation).
that's what i mean with motion interpolation 0 0.

and about the 60 hz panel sony found a way there are always exceptions to anything:
https://www.rtings.com/tv/reviews/sony/x800g
2 hard indicator that this is a 60 Hz panel are no frame interpolation to 120 hz and no Judder-Free 24p via 60i which needs a 120 hz panel to do the app thing is an indicator too.
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Old 12th December 2019, 20:28   #58145  |  Link
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Cheapest HTCP for madVR in 4K HDR

Dear Friends

I would like to build HTPC and use the newest versions of: MPC HC + madVR + LAV Filters.

I would like to use this HTPC in two scenarios:

1. Only .mkv files - remuxes, backups from my physical UHD collection, such as: 3840x2160p @23.976 (almost every movie) and @24.000 (some of them) and @60.000 (only one movie: Billy Lynn's Long Halftime Walk), BT.2020 HDR 10bit YUV 4:2:0 + audio passthrough to my Onkyo TX-NR686 (Dolby Atmos, Dolby TrueHD 7.1, DTS:X, DTS-HD MA 7.1) with display projector: Epson EH-TW7100 4K HDR BT.2020 10bit.

So there will be no upscalling, downscalling needed at all. Only 4K HDR BT.2020 10bit YUV 4:2:0 to 4K HDR BT.2020 10bit YUV 4:2:0.

I will use an option in madVR: HDR passthrough to display.

2. I would like to watch also a YouTube in HDR, which is needed a codec VP9 v2.

So my question is, what is the cheapest PC components to buy, to meet requirements - watch movies in above scenarios without any stutters, judders, problems at all, just smooth playback?

Sincerely
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Old 12th December 2019, 20:43   #58146  |  Link
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the: https://en.wikichip.org/wiki/amd/ryzen_3/2200g#Graphics

but you should find a user with that APU first to make sure the VP9 profile 2 decoder is working properly. lavfilter fallsback to software on the new navi GPUs pretty much at random files (nearly for sure an GPU driver problem).

it's not recommended to use HDR passthrough with a projector.
even with relative low HDR->SDR settings it's not hard to beat an projector in tone mapping.
but a weak GPU like this VEGA 8 is not the best choice for this.
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Old 12th December 2019, 21:50   #58147  |  Link
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It would be a better choice if there weren’t the unsaturated/wrong colors issue in "hdr passthrough" mode, which was discussed here on the last pages. It seems that this is an issue for all AMD GPUs, so turn your choice in favor of Nvidia.
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Old 12th December 2019, 22:18   #58148  |  Link
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Dear DMU

I understand, but what kind of CPU and GPU will be enough for my scenarios 1 and 2? I will be not using this PC for gaming, only movies 4K HDR BT.2020 10bit YUV 4:2:0 and YouTube HDR.

Sincerely
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Old 12th December 2019, 22:30   #58149  |  Link
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So I just upgraded to Windows 10 and...I forgot to backup my settings...

Anyways...What is the best hardware decoder (Quality over performance!) to use with madVR on Intel CPU/nVidia GPU? D3D11 (Native or Copy-back) Or DXVA2 (Native or Copy-back?)?

Last edited by Devrim; 12th December 2019 at 22:35.
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Old 12th December 2019, 23:55   #58150  |  Link
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Sincerely
if you just want a straight 4k playback system with no frills any 4k/HEVC/HDR capable card will do this, you could go as cheap as an NVIDIA 1030.

However if you are planniing to tone map which is highly recommend for projectors spend all you money on your gfx card and go budget on the rest i'd say.
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Old 13th December 2019, 00:06   #58151  |  Link
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GeForce GTX 1050Ti (GP107) at least.
GeForce GTX 1650 Super - my recommendations.
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Old 13th December 2019, 03:12   #58152  |  Link
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@VAMET

It would be a better choice if there weren’t the unsaturated/wrong colors issue in "hdr passthrough" mode, which was discussed here on the last pages. It seems that this is an issue for all AMD GPUs, so turn your choice in favor of Nvidia.
just don't use passthrough on a projector and you should be golden.

a vega 11 isn't far of a 1050 ti.
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Old 13th December 2019, 08:40   #58153  |  Link
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Dear Friends

All of you say, that I should not use HDR passthrough, why? I don't understand. My projector is capable of 3840x2160 HDR BT.2020 10bit HDCP 2.2, HDMI 2.0b. Have you got some pictures, when HDR passthrough is used on the 4K projector?

At the moment I have got Lenovo notebook:
CPU: Intel Core i5-7200U with Intel HD Graphics 620
GPU: NVIDIA GeForce 940MX

This notebook has got HDMI 1.4 and no HDCP 2.2. I am using madVR without any frame drops, glitches with HDR tone mapping to play 4K HDR BT.2020 10bit. So what I will gain using GPU with HDMI 2.0a/b HDCP 2.2, when using with my 4K projector? What will change?

Thank you in advance for your help and support.

Sincerely
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Old 13th December 2019, 12:41   #58154  |  Link
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projectors are notoriously bad at HDR, you are better off using MADVR tone mapping, you get a much better picture, there is a whole project running at the moment to maximise HDR picture quality on projectors in MADVR.

HDR passthrough works fine, its your default position but if you want to get the very best picture out of your kit you need to use MADVR and the latest tone mapped curves etc.
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Old 13th December 2019, 16:24   #58155  |  Link
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Also outputting 4:2:0 from a PC is a bad idea as internally it's using RGB, so the best would be output RGB Full range or if the projector doesn't support RGB well or at all, YUV 4:2:2.
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Old 13th December 2019, 17:03   #58156  |  Link
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But if you have a 120Hz pnale in the TV the TV is able to do correct 24p? Correct me if I am wrong.
Panasonic is a good example for this: even its current OLED lineup (that has 240/120Hz LG panel in it) can't do 24p judder free with chroma 4:4:4 (PC mode). Don't ask why
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Old 13th December 2019, 19:04   #58157  |  Link
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Because TV manufacturers care absolutely zero about HTPC users.

Last edited by j82k; 13th December 2019 at 19:09.
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Old 14th December 2019, 03:00   #58158  |  Link
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or if the projector doesn't support RGB well or at all, YUV 4:2:2.
Try YCbCr 4:4:4 first! Only if that does not work should you drop to YCbCr 4:2:2.
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Old 15th December 2019, 02:05   #58159  |  Link
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Don't most display devices downgrade to 4:2:2 for processing?
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Old 15th December 2019, 02:10   #58160  |  Link
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ive given up my RX 5700 and gone back to my trusty RX 580, I cant recommend the RX 5700 series for MADVR/HTPC use at all in its present driver state, great for gaming however, I had no issues.
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