INTERACT FORUM

Devices => Video Cards, Monitors, Televisions, and Projectors => Topic started by: dmillionz on February 09, 2018, 06:36:27 am

Title: MadVR Downscaling 4K HDR to 1080p
Post by: dmillionz on February 09, 2018, 06:36:27 am
I'm think I have some setting(s) wrong because it appears my 4K is being downscaled to 1080p and my entire setup is 4K. In stats I'm seeing: 0,0,3840,2160 -> 0,0,1920,1080. What settings do I need to have in place to assure that my 4K HDR MKVs actually play in 4K and aren't being downscaled to 1080p? It's like it works properly sometimes and then it doesn't.

I think the Display Mode switching may not be working 100%. Yesterday 4K was displaying properly in MC, in Windows and on my projector. But then I couldn't get 3D to work. I then switched Windows to 1080p (native res) from 4K and 3D worked again but 4K was back to downscaling. I tried to switch Windows back to 4K but MC still shows it as Downscaled.

I'm using .100 MC and have an Nvidia GTX 1080 card.

Any help will be much appreciated.
Title: Re: MadVR Downscaling 4K HDR to 1080p
Post by: JimH on February 09, 2018, 06:41:00 am
You might read this thread and post here:
https://yabb.jriver.com/interact/index.php/topic,113941.0.html
Title: Re: MadVR Downscaling 4K HDR to 1080p
Post by: rec head on February 09, 2018, 07:40:30 am
When trying to get 3D and UHD to work I noticed that after switching desktop resolution that when I played UHD MadVR would report it was scaling to different lower resolutions. Not even just 1080P but resolutions that I had never used. A restart would solve it but shouldn't be necessary.

tij and The Shoe on the forum here have lots of good help. Here is a link to the thread I started when having problems. https://yabb.jriver.com/interact/index.php/topic,113893.msg789887.html#msg789887
Title: Re: MadVR Downscaling 4K HDR to 1080p
Post by: dmillionz on February 09, 2018, 09:36:48 pm
When trying to get 3D and UHD to work I noticed that after switching desktop resolution that when I played UHD MadVR would report it was scaling to different lower resolutions. Not even just 1080P but resolutions that I had never used. A restart would solve it but shouldn't be necessary.

tij and The Shoe on the forum here have lots of good help. Here is a link to the thread I started when having problems. https://yabb.jriver.com/interact/index.php/topic,113893.msg789887.html#msg789887

I did a lot of troubleshooting last night and have finally figured out the issue in the simplest terms. Apparently, there are issues with the Display Switching taking place in the Nvidia Control Panel by MC/MadVR when going between 3D and 4K. The settings are showing correct on the PC, on the Projector and even in the MC stats but apparently, they aren't "taking" properly at the OS level. I do have all the latest Windows Updates, MC Updates and Nvidia Updates installed as of this writing. Please Note: I was rebooting at first to get this fix to work, but later discovered that a simple log out and back in after making the Display changes was sufficient for the new Display Settings to work properly. What I found is:


Although this is cumbersome and I hope resolved very soon, I have found these steps to display the content in its proper format.

DM