Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Hardware & Software > PC Hard & Software

Reply
 
Thread Tools Search this Thread Display Modes
Old 14th November 2019, 21:43   #1  |  Link
theduuud
Registered User
 
Join Date: Oct 2019
Posts: 1
HDR PC and KS 8000

Hie to everyone. I'm just register because I have some issues and questions about HDR on PC. I was reading the topic (madVR mostly ) but it's old now and some update and driver have been coming out since.
Before saying anything here is my gear : Samsung KS 8000 (EU) PC with WIN 10, GTX 1070, 16go DDR4, R7 1700x

I have some issue with my game when I tried to put them in HDR. They turned a little green/yellow and to dark and bright at the same time. I have check my Nvidia control panel and my res is on 4k 60 hz so I have HDMI 2.0 I guess (indeed HDR seems to work well with my PS4 pro) RGB, 8 Bits complete...

Why is it set to 8 bits ? I can switch to 4:4:2 10 bit but then I'm on the limited range switch...

I already test it with some gradiant image in MPHC with madVR and nothing work for True HDR.

Right now in rdr2 even in SDR everything look washed out compare to my PS4 PRO

-Also I can't read 4k HDR youtube vid properly/without lag/sutters Do you Know why ? 2kHDR running smooth...

What can I do ?

(greetings from France and I hope my english is ok)
theduuud is offline   Reply With Quote
Old 16th November 2019, 12:16   #2  |  Link
huhn
Registered User
 
Join Date: Oct 2012
Posts: 5,971
a 1070 can't do VP9 profile 2 which is used by youtube to do HDR so the CPU has to decode the UHD file which it may can't do in this case.

YCbCr is always limited range which is an advantage so a colorspace mismatch like with RGB isn't possible.

the lastest nvdiia driver had a bug fix for elevated black levels.

10 bit 60 HZ UHD isn't possible with HDMI 2.0 and there is absolutely no problem with 8 bit as long as you are using madVR.
huhn is offline   Reply With Quote
Old 21st November 2019, 04:17   #3  |  Link
Blue_MiSfit
Derek Prestegard IRL
 
Blue_MiSfit's Avatar
 
Join Date: Nov 2003
Location: Los Angeles
Posts: 5,575
YCbCr is not always limited range, but it generally is, and always SHOULD be
Blue_MiSfit is offline   Reply With Quote
Old 21st November 2019, 14:01   #4  |  Link
huhn
Registered User
 
Join Date: Oct 2012
Posts: 5,971
the HDMI spec allows numbers outside the limited range but the signal has to be limited range.

so yeah in the context of HDMI. encoding a full range YCbCr video with let's say x264 is fully supported and properly flagged.
huhn is offline   Reply With Quote
Old Yesterday, 02:39   #5  |  Link
Blue_MiSfit
Derek Prestegard IRL
 
Blue_MiSfit's Avatar
 
Join Date: Nov 2003
Location: Los Angeles
Posts: 5,575
Good luck tho, playback support is not guaranteed
Blue_MiSfit is offline   Reply With Quote
Old Yesterday, 03:05   #6  |  Link
huhn
Registered User
 
Join Date: Oct 2012
Posts: 5,971
with madVR there is no luck involved playinf such files as long as they are properly flagged.

well doesn't matter anyway this was just about full range YCbCr which is not supported by HDMi and left that HDMI part out.
huhn is offline   Reply With Quote
Old Yesterday, 07:24   #7  |  Link
totalz
Registered User
 
Join Date: Apr 2002
Location: confusion
Posts: 11
Quote:
Originally Posted by huhn View Post
a 1070 can't do VP9 profile 2 which is used by youtube to do HDR so the CPU has to decode the UHD file which it may can't do in this case.

YCbCr is always limited range which is an advantage so a colorspace mismatch like with RGB isn't possible.

the lastest nvdiia driver had a bug fix for elevated black levels.

10 bit 60 HZ UHD isn't possible with HDMI 2.0 and there is absolutely no problem with 8 bit as long as you are using madVR.
Can a 1030 do VP9 profile 2?
__________________
System: Asus P6TD ; upgrade in progress
Setup: Windows 10 x64
totalz is offline   Reply With Quote
Old Yesterday, 08:04   #8  |  Link
huhn
Registered User
 
Join Date: Oct 2012
Posts: 5,971
i believe so AFAIK it was for the 1000 series: 1080 ti, 1050 ti, 1050 and 1030 has one the rest not.
huhn is offline   Reply With Quote
Old Yesterday, 10:50   #9  |  Link
totalz
Registered User
 
Join Date: Apr 2002
Location: confusion
Posts: 11
Quote:
Originally Posted by huhn View Post
i believe so AFAIK it was for the 1000 series: 1080 ti, 1050 ti, 1050 and 1030 has one the rest not.
Hi huhn, thanks for reply.

Do you know if 1030 is capable decoding 4k60 4:2:0 with HDR? Or may be even 4k60 4:2:2 with HDR?
__________________
System: Asus P6TD ; upgrade in progress
Setup: Windows 10 x64
totalz is offline   Reply With Quote
Old Yesterday, 14:26   #10  |  Link
huhn
Registered User
 
Join Date: Oct 2012
Posts: 5,971
i personally would never get such a card i used a 960 with 2GB not fun even through pascal seem to do better job in this case.

outputting sure not recommended but sure it can.
with madVR you should use 4K60 8 bit RGB HDR and be done.
huhn is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 16:26.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.