Devices > Video Cards, Monitors, Televisions, and Projectors

MadVR banding

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tij:
Its widely accepted that MadVR tone mapping is better than any TV ... unless you using Lumagen or MadVR Envy boxes

EDIT: check your desktop DPI setting ("Change the size of text, apps, other items") and tell us what it is

MediaMongrel:

--- Quote from: tij on January 31, 2021, 09:56:17 pm ---also strange ... MadVR is downscaling 4K ... is your TV a true 4K TV ... what is your Desktop scaling (DPI)?

--- End quote ---

My tv is as good as tv's get these days... LG CX 65" OLED (2020 model), with HDMI 2.1, 2160p.

Desktop scaling?  Hmm... not sure where to find that.  I know in Display Settings, my main (laptop) display is set to 1080p, and my external display (tv) is set to 2160p, as seen in the photos.  I see in the external Display Settings, the section 'Scale and Layout: Change the size of text, apps, and other items' is set to 200% (default, i believe).  If i click the 'Advanced Scaling Settings' just below, i see that 'Let Windows try to fix apps so they're not blurry' is set to OFF, and there is no custom scaling set in the box lower down. 

Is that what you were referring to?

tij:
The reason I ask for the DPI (which is in your case is 200%) ... is because MadVR seems to be downscaling video ... see line in MadVR OSD - "scale 3840x2160->2400...

I will then assume that your Laptop display resolution is something like 2400x...

so MadVR/MC thinks it playing to Laptop and downscales your Video ...

I have not use multiple screen in a while .... but there is setting somewhere in MC that let you choose which display is primary for video ... i will try to look for it ... but if anyone out there know where it is - please jump in and point in out for us :) ... thx

MediaMongrel:

--- Quote from: tij on January 31, 2021, 10:18:25 pm ---check your desktop DPI setting ("Change the size of text, apps, other items") and tell us what it is

--- End quote ---

Thanks for your help with this.
So, I turned scaling of fonts/apps down to 100%... now all fonts and things are tiny, when displayed on my tv.  BUt I ran the same video and generated the attached MadVR stats screen grab.

So the downscaling you noticed before was from 3840 x 2160 to... 2,400 x 1,350, yes?   
Well, now that font scaling is 100%, I'm seeing UPscaling from 3840 x 2160 to... 4800 x 2700!!!  lol   

tij:
Whats the native resolution of your Laptop?

Edit: which of those 2 screen is set to Primary display?

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