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Old 30th August 2018, 16:33   #52221  |  Link
mclingo
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Originally Posted by Sunset1982 View Post
I've got a question for those of you with AMD crads...

HDR switching is now working with the latest driver but wasnt for a few versions, i'm currently using 18.8.1, seems very stable.

There does seem to be an issue with colour space though which i've logged to AMD. For some reason 23,976 SDR playback can massively overblow colours in some setups, not all, it does it with mine. There is an easy fix though, just callibrate for a BT2020 display in MADVR. This doesnt affect HDR playback or playback at 60hz and may not happen if you put your TV in PC mode, I use BLURAY mode to get access to motion interpolation which isnt available on PC mode on my TV for some reason (2015 LG OLED).

otherwise 23,976 playback is solid, frames skips / repeats are measured in days on my system, even for 3D MVC playback.

You should be able to get NGU high running on the 480 for both upscaling and chroma as its very similar to my RX 580 card.
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Old 30th August 2018, 18:55   #52222  |  Link
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HDR switching is now working with the latest driver but wasnt for a few versions, i'm currently using 18.8.1, seems very stable.

There does seem to be an issue with colour space though which i've logged to AMD. For some reason 23,976 SDR playback can massively overblow colours in some setups, not all, it does it with mine. There is an easy fix though, just callibrate for a BT2020 display in MADVR. This doesnt affect HDR playback or playback at 60hz and may not happen if you put your TV in PC mode, I use BLURAY mode to get access to motion interpolation which isnt available on PC mode on my TV for some reason (2015 LG OLED).

otherwise 23,976 playback is solid, frames skips / repeats are measured in days on my system, even for 3D MVC playback.

You should be able to get NGU high running on the 480 for both upscaling and chroma as its very similar to my RX 580 card.
Ok, sounds good. Thank you! Pc mode only works with 60Hz on my LG Oled, not in 24Hz. But I will give it a try...

Are you on Win 10? Which Version? I am still on 1709 and I don't know if I should update Windows...
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Old 30th August 2018, 19:23   #52223  |  Link
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Hi sunset1982, I am still using my RX 480 and all works well. I don't use HDR much.
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Old 30th August 2018, 21:14   #52224  |  Link
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What is the difference in the doubling options:

"...only if any upscaling is needed" and "...always - supersampling"?
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Old 30th August 2018, 21:34   #52225  |  Link
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Ok, .....
win 10 1709 here too, not risking the change myself, very happy with my system at the moment, dont want to spoil it.
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Old 30th August 2018, 21:40   #52226  |  Link
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@Siso supersampling will always double and then downscale, even if the source definition is equal or higher than the display definition
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Old 30th August 2018, 21:45   #52227  |  Link
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@Siso supersampling will always double and then downscale, even if the source definition is equal or higher than the display definition
I see, thank you. So if I upscale 1080p only, I'm good with "...only if any upscaling is needed", right?

Last edited by Siso; 30th August 2018 at 21:56.
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Old 30th August 2018, 22:32   #52228  |  Link
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"...only if any upscaling is needed" will always double as soon as the source definition is smaller than the display, e.g. if you have a 1920x1080 source and a 2560x1440 display it will still use doubling.
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Old 30th August 2018, 22:34   #52229  |  Link
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"...only if any upscaling is needed" will always double as soon as the source definition is smaller than the display, e.g. if you have a 1920x1080 source and a 2560x1440 display it will still use doubling.
I see, thanks mate.
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Old 30th August 2018, 22:51   #52230  |  Link
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Where "...only if any upscaling is needed" gets problematic is cropped video that almost matches the display resolution, like slightly cropped 1080p on a 1080p display. You usually do not want to double 1440x1046 before downscaling it for a 1920x1080 display.
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Old 30th August 2018, 23:28   #52231  |  Link
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Where "...only if any upscaling is needed" gets problematic is cropped video that almost matches the display resolution, like slightly cropped 1080p on a 1080p display. You usually do not want to double 1440x1046 before downscaling it for a 1920x1080 display.
In that case you suggest using "always supersampling"?
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Old 30th August 2018, 23:51   #52232  |  Link
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the opposite a scaling factor of 1.2 or 1.5 to avoid doubling for a couple of pixels.

you don't have to think to much about this there are not a lot of files out there that are between 1080-1440p so this doesn't really effect you
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Old 31st August 2018, 08:40   #52233  |  Link
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the opposite a scaling factor of 1.2 or 1.5 to avoid doubling for a couple of pixels.

you don't have to think to much about this there are not a lot of files out there that are between 1080-1440p so this doesn't really effect you
Got it, thanks.
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Old 31st August 2018, 09:11   #52234  |  Link
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ok, thx HilliSan & MCLingo, I will give it a try today...


Edit: Changed my cards and it does not work as intended. Adrenalin 18.8.2 does not allow me to change to RGB and olny shows YCBCR (when I am on 4K & 60hz), only when I manually change to 24 Hz I can change to RGB Full.

And HDR mode of my tv is not triggered. Madvr shows amd hdr, but my tv won't change to hdr mode, the colors are also washed out when madvr shows amd hdr.

already reinstalled adrenalin driver several times, nothing changed... Now I will tr to update my system to win1804, maybe this brings the solution.
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Last edited by Sunset1982; 31st August 2018 at 13:27.
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Old 31st August 2018, 17:55   #52235  |  Link
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Originally Posted by Sunset1982 View Post
ok, thx HilliSan & MCLingo, I will give it a try today...


Edit: Changed my cards and it does not work as intended. Adrenalin 18.8.2 does not allow me to change to RGB and olny shows YCBCR (when I am on 4K & 60hz), only when I manually change to 24 Hz I can change to RGB Full.

And HDR mode of my tv is not triggered. Madvr shows amd hdr, but my tv won't change to hdr mode, the colors are also washed out when madvr shows amd hdr.

already reinstalled adrenalin driver several times, nothing changed... Now I will tr to update my system to win1804, maybe this brings the solution.
Assume you are talking about your PC desktop here, mine is currently set 4k 60hz FULL RGB 4:4:4 8 bit (can only get 10/12 bit sub 4:4:4 mode), so no problems here for me. Did you do a full driver wipe in between?

Also Check your TV HDMI port is defo set to deep colour on, if you are using a different port you might not have changed it.

lastly make sure you full HDMI cable path is 18gbps HDMI 2.0


DONT UPDATE WINDOWS 10, you are just introducing another complication here which will make this more difficult to solve

Last edited by mclingo; 31st August 2018 at 17:57.
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Old 1st September 2018, 00:31   #52236  |  Link
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Originally Posted by Sunset1982 View Post
Edit: Changed my cards and it does not work as intended. Adrenalin 18.8.2 does not allow me to change to RGB and olny shows YCBCR (when I am on 4K & 60hz), only when I manually change to 24 Hz I can change to RGB Full.
change the bit deep to 8 bit first and it should work.
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Old 1st September 2018, 21:03   #52237  |  Link
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Same situation here but you dom't have to loose 12bits.
Do this: get CRU custom resolution utility.
Write down the front and back porch that madvr is using along with sync width.

Open cru, in detailed resolution add 3840x2160 23.000 with the information provided by madvr.
Click ok.
Press up so 3840x2160 23 will be right under 3840x2160 60.
Click ok
Use restart 64 or 32 depending on your system.

After the restart you will see 3840x2160 under PC resolution.

First under hd resolution, set 3840x2160 23 RGB Full dynamic range and 12bits for 23hz.
The custom resolution will be named 24hz.
Change it.
And now go to pc resolution and change to 3840x2160 24hz.

And that's what I did here to have custom timing and 12bits.
Hi, I'm trying this with CRU - however, when I put in the horizontal front porch number from MadVR (1276), the font changes to red in CRU and won't let me click ok. Anyone know why?
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Old 2nd September 2018, 13:04   #52238  |  Link
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Originally Posted by mclingo View Post

DONT UPDATE WINDOWS 10, you are just introducing another complication here which will make this more difficult to solve
What kind of complications?



@Huhn:

I am on 8 Bit. Can't change it to any other bitdepth. Cables are ok and worked with my gtx1070 in 4k, 60Hz, RGB Full.

I will try to Clean my system from old drivers and reinstall it again. Will report back.
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Old 2nd September 2018, 13:06   #52239  |  Link
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@madshi
Did you plan to create a SRGAN/ESRGAN like image doubler?
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Old 3rd September 2018, 10:08   #52240  |  Link
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ok, I reinstalled my system and now 60hz, Full RGB is working.

But HDR mode isn't triggering my tv to switch into HDR Mode.

Passtrough and HDR Metadata send is aktivated.

If I let madvr automaticly choose the hdr mode, it converts hdr to sdr and don't uses the tv's hdr mode too.

is anyone here using a amd card with a LG OLED? is this confirmed to work together?

My gtx switches into hdr and triggers my tv corretly...
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