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Old 20th March 2020, 20:04   #1181  |  Link
mclingo
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hi, please can someone with a 4k TV switch to 1080p 60hz and see if they can select full 4:4:4 FULL RGB please, dropping back to an old driver fixes this for me so cant just be me surely.

i've tried a full driver wipe with DDU no joy.

EDIT, I think this driver doesn't like my LG OLED, it works fine with my 4k samsung N8000, well cheesed off.
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Last edited by mclingo; 20th March 2020 at 20:40.
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Old 20th March 2020, 20:57   #1182  |  Link
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@mclingo
All OK here...
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Old 20th March 2020, 21:17   #1183  |  Link
mclingo
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Thanks DMU.

If I could get 3d to work with KODI DS i wouldnt mind but when my desktop and kodi gui is in 4k 3D just wont trigger at all. If I put KODI DS is 1080p it works but as gui is now in ybcr its all washed out and nasty, plus when I come out of KODI is more than often doesnt drop back to 4k so i'm forever swithing back to 4k, just a total nightmare.

3d plays fine in MPC from a 4k desktop so that bug is just with KODI DS which again will never get fixed unfortunately, i cant win, there is something wrong with every F**king driver, its infuriating.
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Old 21st March 2020, 04:40   #1184  |  Link
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@DMU: I can only find an option to switch between Auto and Native. What am I missing? Please help me
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Old 21st March 2020, 07:27   #1185  |  Link
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@Klaus1189: You need to be in not the PC mode and choose Custom.
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Old 21st March 2020, 11:19   #1186  |  Link
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Thank you
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Old 21st March 2020, 15:50   #1187  |  Link
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Any feedback, please for the latest nVidia driver, regarding HDR passthrough?
Highly appreciated
Especially regarding madVR passthrough, that's what i'm interested in

And how i can check myself within the CTRL+J display info OSD from madVR if the metadata is bogus or correct

Thanks a lot

Last edited by webbo; 21st March 2020 at 16:16.
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Old 21st March 2020, 16:25   #1188  |  Link
Klaus1189
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The latest Nvidia drivers are fine as far as I know.

In Display Stats you can‘t check it. You need to measure it. See the post I linked to in the first post with the broken Nvidia drivers.
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Old 21st March 2020, 17:48   #1189  |  Link
SamuriHL
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The latest nVidia drivers work fine for HDR, yes.
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Old 29th March 2020, 00:20   #1190  |  Link
Magik Mark
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Problem with the GForce v445.75

When running HDR videos, it switches back to SDR when UI of the player is activated.

Sometimes, it can no longer switch back to the right dynamic range
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Old 29th March 2020, 02:34   #1191  |  Link
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Confirmed. Seems to be a bug in the latest Nvidia drivers.
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Old 30th March 2020, 02:19   #1192  |  Link
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The issue is with the bit depth. Anything higher than 8-bit causes the display to drop out of HDR when a UI is triggered.
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Old 30th March 2020, 23:46   #1193  |  Link
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AMD, Intel and Nvidia driver issues and last recommended version

Quote:
Originally Posted by chros View Post
Thank You, guys, CRU 1.4.1 with DisplayID also solved my above mentioned issue. That's what I did:
- wrote down the madvr timings, removed the madvr created custom resolution, then restart
- in CRU 1.4.1
-- add DisplayID to Extension blocks and set it as the 1st entry
-- set madvr timings and set Pixel clock and Native as well

It's a big help to get rid of a major annoyance, now I can set 23p as the default refresh rate of the TV

Couple of notes:

The difference between CRU and nvidia created (by madvr) custom timing is:
- nvidia adds a new one to the already existing ones: that can confuse applications which one to use (e.g. madvr)
- CRU replaces an existing one with the custom one on the OS level, so there won't be any confusion

When you create custom timings with madvr:
- always start from the default one (EDID) and pay special attention to the "sync" attributes (e.g. + , +):
-- don't select a mode that is different!
- don't deviate a lot from the default EDID values
-- remember, this approach is modifying "back porch" (horizontal and vertical values) only!
- the above 2 wrong settings can easily modify the response of the panel! (e.g. modifying gamma curve, causing black crush, etc.)
- if you get >= 10 hours after the first optimisation then it's already really good, you don't need to do more runs

Examples, original EDID timing:
Code:
EDID/CTA:
frontsywi    backpixels       sync
hor1276     882961660     34805500+
ver 8 10 72 90 21602250+
picl 296.70 mhz
 23.9757575757576
OSD result: 23.97791Hz (~4.41 minutes)
Result after the first optimisation run:
Code:
Custom:
frontsywi    backpixels       sync
hor1276     88     3561720     3480   5560+
ver 8 10 72 90 21602250+
picl 299.94 mhz
 23.9760191846523
OSD result: 23.97537Hz (~22 hours - 1 day)

About nvidia driver versions:
- some of them can block custom timings completely (doesn't matter how they were created)
- so always check in madvr OSD whether your timing is applied if you install a new driver

Btw, I still use the Display Changer II util to easily manage 2 displays.
I was able to create a custom resolution but nvidia displays it as 24 hz and I have to manually activate it for it to work in mad vr. Madvr won’t automatically switch to this exact resolution. Is there a way to do that?

Edit: It looks like you use the hack direct 3D for 24 and 60 hz option.

Last edited by tyguy; 31st March 2020 at 02:27.
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Old 31st March 2020, 00:52   #1194  |  Link
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Quote:
Originally Posted by VBB View Post
The issue is with the bit depth. Anything higher than 8-bit causes the display to drop out of HDR when a UI is triggered.
Oh that's going to irritate the hell out of me. I've not watched a movie since I upgraded to the latest driver and I've got the Star Wars UHD collection coming tomorrow (I hope). Guess I'll be rolling back cause um NO.
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Old 31st March 2020, 02:55   #1195  |  Link
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You'll be fine. Just don't trigger any overlay
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Old 31st March 2020, 15:14   #1196  |  Link
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Meh no thanks. I reverted the driver. I've been gaming on the new laptop anyway so I don't (currently) need the latest and greatest driver. I'm assuming at some point nVidia will fix it in an upcoming release. Not that my movies shipped on time anyway. Tracking numbers with no actual shipment should be illegal. LOL
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Old 10th April 2020, 01:17   #1197  |  Link
Cowboydude99
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Just found this!

Hi all,
I just found this thread...

I'm having issues with my NVIDIA GTX 1080 and JVC PJ.

I use MADVR and JRIVER.

What are the best drivers to use? I do like to game, but it might be a while before I get the chance to game anyway...

Any drivers kind of recent that would allow me to use 444:12bit?

I have a ton of UHD disks.... but can't get HDR working nicely.

Color space shows BT.709 (Best Guess) in MADVR display...

Very frustrating. I just updated to 445.75, then literally found this list/post.
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Old 10th April 2020, 05:56   #1198  |  Link
huhn
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best guess means the file doesn't have meta data so you have to fix this by hand.

that pretty much means the file is broken or the source filter/decoder can't read it doesn't. this is usually the file.
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Old 10th April 2020, 10:42   #1199  |  Link
NikosD
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Hello.

I'm using Win 10 x64 1909 (18363.752) with nVidia 1660 (442.74) connected on a UHD TV using HDMI 2.0.

When native 4K@60Hz resolution/ refresh rate is selected along with HDR from Windows settings, I get only 8bit option for color depth.
My other options selected are RGB for color format and Full RGB.

The diagnostics confirm the settings reporting "8bit with dithering"

If I turn HDR off from Windows settings, I get 8bit & 12bit color depth options.

a) Where is 10bit option, why is missing and I get 12bit with HDR off ?

b) How can I get 10bit using 4K@60Hz with HDR on ?

I mean using 4:2:2 or 4:2:0 options, because I think 4:4:4 is impossible using HDMI 2.0
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Old 10th April 2020, 12:31   #1200  |  Link
huhn
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for some reason nvidia doesn't like 10 bit as a format it does it but if 12 is possible it is doing 12.

you talk about full range RGB and that you know you need 4:2:0 or 4:2:2 to get 10 or 12 bit at 60 which is YCbCr.
just stick to 8 bit RGB it's "better" anyway.
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