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Old 5th July 2018, 08:44   #51621  |  Link
waldnebel
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Quote:
Originally Posted by Warner306 View Post
I've never used the CRU utility. If you can't see any movement in madVR when playing content with that resolution, you are probably stuck.

After the last Windows update, I had to remove my drivers with DDU and start over with the custom resolution process. I don't like to recommend it to everyone, but it has happened twice after driver upgrades.

Maybe someone else can be of help with CRU?
I tried the oldest driver I could find on the nvidia website (version 388.71). I did a clean installation but the problem I had with the custom resolutions simply persisted.


The edid says my TV accepts pixel clocks up to 600Mhz but no single one madvr calculates seems to be accepted.

EDIT: @Warner306 Do you use FullHD or 4k resolutions? Does it matter at all?

Last edited by waldnebel; 5th July 2018 at 08:54.
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Old 5th July 2018, 13:03   #51622  |  Link
jkauff
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Originally Posted by Warner306 View Post
Maybe someone else can be of help with CRU?
CRU creates its custom resolutions at the operating system level, not the GPU level, so anything created using CRU will not show up as a customized resolution in the GPU Control Panel.
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Old 5th July 2018, 15:06   #51623  |  Link
mclingo
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@MADSHI - AMD have been in contact with me regarding the two main issues we have with MADVR - 1. HDR toggle no longer working since 18.3.4 and blown out reds with SDR material @23,976 - since 16.8.1.

Is there anything you can tell me that you've tried or anything I can add to my replies, they are asking what diagnosis has been dont with MADVR itself being that both of these issues only seem to affect MADVR right now.
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Old 5th July 2018, 15:22   #51624  |  Link
mrmojo666
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Quote:
Originally Posted by mclingo View Post
@MADSHI - AMD have been in contact with me regarding the two main issues we have with MADVR - 1. HDR toggle no longer working since 18.3.4 and blown out reds with SDR material @23,976 - since 16.8.1.

Is there anything you can tell me that you've tried or anything I can add to my replies, they are asking what diagnosis has been dont with MADVR itself being that both of these issues only seem to affect MADVR right now.

regarding HDR switch , if i remember well it doesn't work also with windows 10 internal player (aka movies & tv)
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Old 5th July 2018, 16:24   #51625  |  Link
mclingo
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its never worked with that, you've always had to turn it on manually with windows players.
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Old 5th July 2018, 16:45   #51626  |  Link
brazen1
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Quote:
Originally Posted by mclingo View Post
@MADSHI - AMD have been in contact with me regarding the two main issues we have with MADVR - 1. HDR toggle no longer working since 18.3.4 and blown out reds with SDR material @23,976 - since 16.8.1.

Is there anything you can tell me that you've tried or anything I can add to my replies, they are asking what diagnosis has been dont with MADVR itself being that both of these issues only seem to affect MADVR right now.
This guy can help you. A day ago he wrote:

"too many issues with NVIDIA right now, AMD have their own issues too but I have workarounds for all of them"

https://forum.doom9.org/showpost.php...ostcount=51658

Seriously though, maybe your spare nVidia with a custom resolution is a better answer for you at this time.
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Old 5th July 2018, 16:46   #51627  |  Link
Warner306
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Quote:
Originally Posted by waldnebel View Post
I tried the oldest driver I could find on the nvidia website (version 388.71). I did a clean installation but the problem I had with the custom resolutions simply persisted.


The edid says my TV accepts pixel clocks up to 600Mhz but no single one madvr calculates seems to be accepted.

EDIT: @Warner306 Do you use FullHD or 4k resolutions? Does it matter at all?
I'm using a Full HD resolution. I don't think that is your problem. Did you wipe your old drivers with DDU to get rid of the custom resolution in the control panel? After that, you should just create one manually and enter the information you wrote down yesterday. If you just upgraded the driver, you probably didn't remove the problem.

If this persists, I would guess something in the Windows Update is causing problems, or something in your configuration is different, but I couldn't guess what might have changed. I would try to avoid having madVR put any custom resolutions into the control panel that can't be edited or overwritten. Trying an 8-bit resolution might also help. Don't know.

Last edited by Warner306; 5th July 2018 at 17:55.
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Old 5th July 2018, 17:11   #51628  |  Link
mclingo
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Quote:
Originally Posted by brazen1 View Post
This guy can help you. A day ago he wrote:

"too many issues with NVIDIA right now, AMD have their own issues too but I have workarounds for all of them"

https://forum.doom9.org/showpost.php...ostcount=51658

Seriously though, maybe your spare nVidia with a custom resolution is a better answer for you at this time.
oh please go away.
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Old 5th July 2018, 18:49   #51629  |  Link
Crimson Wolf
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@Warner306 He probably used the checkbox "clean installation" during install.

@waldnebel use DDU in safe mode to remove all traces of nvidia files. Then install the latest driver. Before creating a custom res, try the default refresh rate first. Try playing a video for AT LEAST 15 minutes. The latest few nvidia drivers have improved something.
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Old 5th July 2018, 19:39   #51630  |  Link
brazen1
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I know this has come up in the past but I've run into it again: Weeding out some of my collection I came across Children of Dune (2003) encoded in 720p @50Hz. My intention was to see how CGI on this looks with madVR. Instead I was met with judder. Knowing I have a 2160p25 display mode madVR may switch to added, I checked NCP current resolution. It was 60Hz and my panel was reporting the same. 50 is a multiple of 25. nVidia and my panel should have switched but it didn't. My display is capable of 25Hz and 50Hz. So, I added 2160p50 to the list of resolutions madVR can switch to and everything then matched refresh rate and switched to 2160p @50Hz and the judder disappeared.

Fwiw, using match refresh rates with official KODI VideoPlayer also does not switch rates for this particular title and there is no where to tell it to. Thank you madVR. Other rates do switch.

I'm pondering if displays that only have rates of 23, 24, 25, and 60Hz take advantage of multiplying while displays that handle all refresh rates need to be specifically told which one even if it is a multiple.

My current list madVR may switch to now looks like this in case anyone notices the same and I don't think there are any side affects:

2160p23, 2160p24, 2160p25, 2160p30, 2160p48, 2160p50, 2160p59, 2160p60
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Last edited by brazen1; 5th July 2018 at 19:51.
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Old 5th July 2018, 20:28   #51631  |  Link
Asmodian
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Nothing switchs to a 25 Hz mode when playing 50 Hz content. You would have to drop half the frames.
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Old 5th July 2018, 21:19   #51632  |  Link
mclingo
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I think the AMD RX 580 is a good used buy right now, £160 gets me NGU sharp very high on chroma and NGU sharp high on upscaling, sub 30ms rendering times.

very pleased with that.
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Old 5th July 2018, 21:29   #51633  |  Link
leeperry
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Gonna make the jump to 2160p and my 7850 won't hold a candle to it, FWIR here Polaris isn't too happy about NGU so how about a 80 bucks refurb R9 380 with 6 months warranty?

I only care about mVR so benchmarks appear to be irrelevant for mVR purposes? 7850 is da bomb with 13.12 drivers @1080p, I want the same but for 2160p and not for 200 bucks either if any possible
Any advice fellas?
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Old 5th July 2018, 21:37   #51634  |  Link
mclingo
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dont think that card is a true 4k card, you'll only get a sub 60hz desktop at 4k, fine if you're not using your HTPC for anything else but I wonder if you'll have other issues with it not being a full 4k card with the increased HDMI bandwidth, you'll need to look into that.

you could pickup an RX 460 for about 60, you'll get NGU sharp low around 30ms rendering, that What I was getting prior.

EDIT pretty sure its HDMI 1.4 spec, unless there was a late HDMI 2.0 version?

Last edited by mclingo; 5th July 2018 at 21:40.
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Old 5th July 2018, 22:29   #51635  |  Link
strumf666
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HDMI 1.4 is pretty limiting for 4k, 24/30hz and 8 bit color max. For HDMI 2.0 you need at least 4xx series.
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Old 5th July 2018, 23:00   #51636  |  Link
Asmodian
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Quote:
Originally Posted by mclingo View Post
I think the AMD RX 580 is a good used buy right now, £160 gets me NGU sharp very high on chroma and NGU sharp high on upscaling, sub 30ms rendering times.
It is odd to use very high for chroma but only high for image upscaling. In my testing I preferred NGU high over very high for chroma, it seems to look the same or better and uses a lot less power.

I suppose you have enough GPU power for very high for chroma but even using low for chroma upscaling you cannot use NGU very high for image upscaling?

Quote:
Originally Posted by strumf666 View Post
HDMI 1.4 is pretty limiting for 4k, 24/30hz and 8 bit color max. For HDMI 2.0 you need at least 4xx series.
Also the hardware decoders are not as good, 4K 10 bit HEVC takes a lot of CPU if you have to use software decoding.
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Old 6th July 2018, 00:52   #51637  |  Link
ryrynz
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Quote:
Originally Posted by mclingo View Post
I think the AMD RX 580 is a good used buy right now, £160 gets me NGU sharp very high on chroma and NGU sharp high on upscaling, sub 30ms rendering times.

very pleased with that.
Save your resources and drop back to just high (chroma) The difference isn't worth it, it's quite minimal and I'm pretty picky.

Oh Asmodian beat me to it. Good man.
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Old 6th July 2018, 02:43   #51638  |  Link
huhn
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HDMI 1.4 is pretty limiting for 4k, 24/30hz and 8 bit color max. For HDMI 2.0 you need at least 4xx series.
you can do 12 bit with HDMI 1.4 at UHD
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Old 6th July 2018, 04:07   #51639  |  Link
Warner306
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Quote:
Originally Posted by mclingo View Post
I think the AMD RX 580 is a good used buy right now, £160 gets me NGU sharp very high on chroma and NGU sharp high on upscaling, sub 30ms rendering times.

very pleased with that.
It’s a card that could make you take up video games. With games, it sometimes outperforms the GTX 1060. It’s not surprising that it has enough power to handle madVR.
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Old 6th July 2018, 05:29   #51640  |  Link
strumf666
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you can do 12 bit with HDMI 1.4 at UHD
Perhaps with crappy subsampling and at 23,967Hz. Considering a large portion of this thread is about how practically none of commercially available screens are able to properly display >8bit colors and reduced picture quality because of subsampling I would count this as irrelevant, but that is just my opinion. Oh and I almost forgot the potential for flickering when the camera is panning if the display isn't able to properly display 23,976Hz since higher refresh rate isn't possible at this settings.
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