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4k hdr, how can I see if JRiver it out correctly.

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indieke:
With Computer I am really not good in it any more. I can also show you what Zidoo put out.

But model is MSI GF 63 Thin 95 C.  In Mad VR, I do nothing. I just play the file. I give you other settings this week-end, as I rest now getting vaccine Thursday.

The projector is a  Fengmi Cine 2, brand new.  1080 p has a killer contrast. Never seen before. Now I was wondering. The projector is 4K. But can the projector handle HDR, when you input it? Can that be broken, that it not react to it. Or is all that done by either computer, or mediaplayer, here Zidoo Z9S.

I would say that if the projector output so well 1080 P, that there the hardware is functioning well, or must the projector balance in REC 2020 itself, and does not do it? I am 62, and these things are getting difficult for me. What is important in this stage also, is to know if the projector can be defective....

I appreciate your help.  What is weird is when I try to put the Computer in HDR, in the display settings, it is not possible.  It is very complicated all to me. I not really want to use the computer for this, but be sure there is no problem with the ne projector itself. Review here:
https://www.passionhomecinema.fr/blog/index.php/03/08/2021/test-fengmi-formovie-cinema-2-lavis-de-gregory/

Second part in English.
 

tij:
ok ... your PC (MSI GF 63) has GeForce 1650. That should be plenty for 4K. Unfortunately, there are not much info on your projector ... other than it is HD but can do 4K by flashing HD 4 times (never heard of something like that ... most i heard are TI chip that need to flash twice to get 4K).

Since it seems you are not so good with computers, I try to be as detail as possible

1) first need to figure what refresh rates your projector support at 4K. Go to NVidia Control Panel (see first attached picture).

Set output color to RGB and Dynamic Range to Full. Select 3840x2180 and see what refresh rate your projector support (you can see my TV support 60, 59, 50, 30, 29, 25, 24, 23)

2) now go to MC. [Tools]->[Options]->[Video]. Set [Display Settings automatic change mode] to off (we will let MadVR switch mode ... as I recall recently somebody had problem with MC switching)

3) In [Tools]->[Options]->[Video] click [open MadVR settings]. In MadVR settings go to [devices]->[display modes]

Copy all settings from my screenshot ... except [list all display modes MadVR may switch to] ... here you have to take refresh rate you found in Step 1 and put it behind 2160p

For example, if you found in Step 1 that 3840x2180 can only support 30Hz and 60Hz, you put "2160p30, 2160p60"

4) In MadVR settings go to [devices]->[HDR]

Copy all settings from my screenshot ... except [target nits]. Setting this value higher increase "HDR effect" ... setting this value lower makes picture look brighter. Start with 100 ... change it until you find best value for your projector.

Once you happy ... post ctrl+j screenshot so we can check if your PC can handle these settings






[/list]

tij:
Forgot ... in madvr settings

[devices]->[properties] ... set [the display expect following RGB output levels] to full PC 0-255

This will match NVidia setting full dynamic range ... otherwise you will get elevated blacks

indieke:
Just small update and thanks for your help.

On my computer the Nvidia panel is disabled, and forced to use the windows settings.  In the windows image configuration it is impossible to activate the HDR.   What I read is that the Fengmi C2, needs a source that does the tone-mapping.

But I am not sure, after reading that MadVR output also SDR, that the projector is recognized as such. I am very busy moving, and I will investigate on a HDR TV, if same problem.

tij:
Read this to understand HDR and tone mapping

https://yabb.jriver.com/interact/index.php/topic,126153.0.html

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