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Old 11th April 2019, 23:35   #55701  |  Link
jkauff
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Quote:
Originally Posted by Asmodian View Post
Then you would be wrong. madVR is used on many PC monitors.
Indeed. madVR looks great on my 27" 4K PC monitor. My 4K TV has to do its own upscaling, because it's in another room and I don't have an HTPC. Fortunately, it does almost as good a job.
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Old 11th April 2019, 23:55   #55702  |  Link
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Originally Posted by tp4tissue View Post
If using an A-rgb or p3 space mode, then it's oversaturated ?
Yes, if you set "disable calibration controls for this display" madVR assumes BT.709 (similar to sRGB for our use case).

If you are using P3 set "this display is already calibrated" to DCI-P3. Sadly madVR does not have an Adobe RGB option for "This display is already calibrated" so you need to use another calibration option to get correct colors on an Adobe RGB screen.

Adobe RGB is a color space useful for professional print work so in that sense it makes sense to leave it out of video options but there are a lot of Adobe RGB wide gamut displays out there so it would still be nice to have it.
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Old 12th April 2019, 02:25   #55703  |  Link
huhn
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just use a synthetic 3D LUT.

and again HDR-SDR has nothing todo with this.
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Old 12th April 2019, 02:41   #55704  |  Link
mclingo
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Originally Posted by Asmodian View Post
This is easily achieved with a profile, madshi does not need to be making workarounds for bad drivers that will hopefully be fixed.
... you mean like adding CRU solely for NVIDIA cards
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Old 12th April 2019, 02:58   #55705  |  Link
huhn
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blocking 10 bit for SDR would be ok if the issue would be present all the time like it was blocked on nvidia because nvidia broke it and there was no except everyone got the problem but as far as i can see it right now that's not the case her.

custom rates is useful for AMD and intel user too and you know that...
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Old 12th April 2019, 03:17   #55706  |  Link
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Originally Posted by huhn View Post
just use a synthetic 3D LUT.

and again HDR-SDR has nothing todo with this.
Why does HDR to SDR have nothing to do with this ?


If the 4Khdr material contains a color that's only in p3 space (outside of 709 space).

Does hdr_sdr process not clip/map that color to something in the 709 space ?
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Last edited by tp4tissue; 12th April 2019 at 03:20.
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Old 12th April 2019, 03:25   #55707  |  Link
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because madVR can output what ever you want the HDR->SDR doesn't change this.
if an bt2020 SDR file is played madVR will do the "same".
i have no clue if the madVR gamut mapping (not HDR related) using a roll of or is clipping or something else and i don't know that for 3D LUT too. i guess it's clipping.
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Old 12th April 2019, 06:47   #55708  |  Link
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Yes, that is my question.

How is Madvr mapping the gamut from the P3 colorset embedded in BT2020 down to 709.. Which is why I asked originally, if Madvr 's hdr-sdr process is expecting a certain end colorspace.
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Old 12th April 2019, 09:04   #55709  |  Link
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H all,

after reading all the post available everywhere in the web i'm really surprise that its seen so little have issue with those SO annoying stuttering with RTX new card. Coming from a simple GTX 1060 with no issues at all i upgrade to RTX 2060 AMP from Zotac and start with the nightmare to be unable to watch smooth playback, so i follow advice from some of your, going to FSE that i have never need to use it before on GTX card, testing all scaling algorithm and getting nothing better, the only improvement but still not ideal its to add with FSE a lower GPU queue, to its minimum and do not present to much frame in advance, it works for some and look like it really depend from the source, on some video it will have a minimal impact or worst not at all, and im taking HD UHD on MKV AND BD ISO M2TS

i really start to feel a bit part of the few or even alone with this issue, it look like it work fine for so many of RTX owner, nothing on that in the bug report, i thought that odd. Only have this issue with video and not in game.

@madshi if you read this by any luck i know you are very very busy on the render improvement HDR (great work for all the member involved that some brilliant brain storming over there) and also your new project but i'm wonder if that stuttering issue on RTX card is it something that you are willing to take into consideration cause there is something going there with those RTX . Thx.

Seriously this make me mad without the vr , stating to think maybe to ask a card replacement is that only last option ?

if there is some light there from someone facing that same issue ? sharing some thought please let me know.

My Equipements and playback tools: mardvr 0.92.17 MPC HC MPC BE jriver Media 25 ( fse in jriver and HDR on jvc its a pain)

I5 8600k 4.20GHZ 32MB RTX2060 1000 watt power su / Panasonic fz800 JVCdla 7900 marantz 7010

Thanks.

Last edited by suisenken; 12th April 2019 at 09:07.
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Old 12th April 2019, 12:35   #55710  |  Link
If6was9
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Quote:
Originally Posted by mclingo View Post
re the colour saturation issue on AMD cards, if you set MADVR to 8bit it fixes it as you know but you lose HDR switch, would a good workaround be for MADSHI to create a force 8 bit toggle switch for all SDR, just for AMD users. This would force 8 bit on all SDR material but leave HDR as 10 bit .

Should be possible?
I with the RX580 in 8bit quietly send the HDR to the PJ
I see that you use full 4:4:4 RGB color space at 60hz,
maybe that's the problem, and not the AMD drivers.
There are very few chains that can manage 4K HDR in full RGB 60hz, let alone 10bit,
but it's not an AMD problem

Last edited by If6was9; 12th April 2019 at 12:41.
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Old 12th April 2019, 12:38   #55711  |  Link
huhn
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here you go https://forum.doom9.org/showthread.p...05#post1870305
this help most RTX user.
BTW is well known the issue. just hope the next major nvidia driver does something.
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Old 12th April 2019, 12:44   #55712  |  Link
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Quote:
Originally Posted by If6was9 View Post
I with the RX580 in 8bit quietly send the HDR to the PJ
Your projector goes into HDR mode at 8bit output madVR settings?
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Old 12th April 2019, 12:45   #55713  |  Link
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that actually works with nvidia and some TVs sadly not all.
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Old 12th April 2019, 12:47   #55714  |  Link
If6was9
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But why before wanting to use the 10bit at all costs, don't you do this test, to check if your chain be able to support them?
madVR 8bit + dithering V.S. 10bit direct
Surely you will discover the nature of your panels, and many the goodness of the work done by madVR.:
http://tweakvideo.altervista.org/blo...ore-con-madvr/

Last edited by If6was9; 12th April 2019 at 12:52.
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Old 12th April 2019, 12:51   #55715  |  Link
If6was9
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Originally Posted by DMU View Post
Your projector goes into HDR mode at 8bit output madVR settings?
Of course, with EDID1

Last edited by If6was9; 12th April 2019 at 12:54.
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Old 12th April 2019, 14:03   #55716  |  Link
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Originally Posted by Manni View Post
You can use the same P3 or BT2020 calibration for everything with a flat panel, but not with a projector if you care about picture quality. Using the same calibration for HDR and SDR raises the black floor and lowers the contrast in SDR unnecessarily. Not a problem with OLED, but an issue with projectors.
Oh, thanks.

Quote:
Originally Posted by VBB View Post
What are you trying to accomplish? With DisplayCal, it takes just a few minutes to calculate the additional LUTs.
Exactly this is what I do *not* want to do I only want to use 1 madvr slot.
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Old 12th April 2019, 14:12   #55717  |  Link
mclingo
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Originally Posted by If6was9 View Post
I with the RX580 in 8bit quietly send the HDR to the PJ
I see that you use full 4:4:4 RGB color space at 60hz,
maybe that's the problem, and not the AMD drivers.
There are very few chains that can manage 4K HDR in full RGB 60hz, let alone 10bit,
but it's not an AMD problem
I thought that too, this has been discussed in detail a couple of times but never got any traction, sadly this is mainly an NVIDIA problem fix thread...., only joking..

I've also tried 442 and 420, all exhibit the same problem, it happens to me with all SDR material, nobody has been able to explain why calibrating for BT2020 fixes it or why this only effects resolution sub 60hz, its not my TV or receiver either as I bypassed my receiever and tried my other non HDR TV, the problem is definately generated at the PC end before it goes to TV.

I can understand MADSHI reluctance to look at something which only affects one set of cards but he seems happy to deal with NVIDIA problems which dont effect AMD cards, so I live in the hope he'll get time to have a look at this at some point once he's finished with projectors and HDR.

Main thing though I guess is we have several workarounds people can use, this problem is the only issue AMD cards have so we should be grateful for that I guess.
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Old 12th April 2019, 14:22   #55718  |  Link
mclingo
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Originally Posted by huhn View Post
blocking 10 bit for SDR would be ok if the issue would be present all the time like it was blocked on nvidia because nvidia broke it and there was no except everyone got the problem but as far as i can see it right now that's not the case her.

custom rates is useful for AMD and intel user too and you know that...
I dont think there are any exceptions here either, anyone using a 10 bit AMD HDR MADVR setup playing a 23,976 SDR movies should have over saturation mainly in reds, it can be quite subtle on some movies though.

Hit me up if you dont have this problem AMD users, I'd be interested to know how you machine is setup in detail.
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Old 12th April 2019, 15:18   #55719  |  Link
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If you guys want all these drivers issues fixed, you should start by reporting them in the appropriate places: NVIDIA driver forum and AMD driver forum. Get several people to report them and it will raise priority.
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Old 12th April 2019, 15:26   #55720  |  Link
mclingo
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Previous ticket:8200703976

well here's my ticket ref for AMD, I went as far as logging it as a fault, they seemed to be looking into it, they were replying every couple of days first with generic responses like reinstall drivers / windows etc but then they said it has been excalated to the drive team so I thought I was getting somewhere, next thing I know I got this:

This is an automatically generated email. Please do not reply.

Dear xxxxx,

You recently contacted AMD Global Customer Care.

If you submitted your request electronically, we have sent a response
to your inquiry and have had no reply from you in the last 10 days.

The then closed the issue pretending I hadnt contacted them further, even though I had several times asking why I was getting this email.

They've done this twice to me with this problem, I just gave up in the end, i'm not logging it again, someone else needs to take on the baton.

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