How to force 4096 x2160p on native 4k tv @60hz

[ToastyX]

(07-12-2015 06:11 AM)Duke_PH Wrote:  So I imported the dat file into CRU. Immediatly I noticed it change my custom res's to 4k@30, 1440p@60, and 1080@60. So I thought okay, whatever, as long as there is a block that tells my pc that 4k@60 is native. Saved it, restarted. Didn't work. So I loaded the bin file you gave me into MonInfo which translates it in to "English". The EDID you gave me has 4k@30 as native still. I'm sorry to say i didn't work. I wish I was knowledgeable enough to write a custom block myself. Any ideas?

MonInfo does not read the file correctly. It only reads the first half. To read the whole thing, you would need to import the file into CRU and export a .bin file instead of a .dat file. Even then, MonInfo does not understand the new data blocks. They are simply listed as "Reserved video related data" with the raw bytes.

The first detailed resolution is considered the native resolution, but 4:2:0 resolutions are defined in the "Extended (14)" data block in the extension block. The "Extended (13)" data block is the "video format preference" data block that's supposed to define additional native resolutions, but if NVIDIA's driver doesn't use that information, then I don't see a way to mark a 4:2:0 resolution as native.

You can try changing the first detailed resolution to 3840x2160 @ 60 Hz. That will get rid of 30 Hz at least. The problem is if NVIDIA's driver ignores that, then it might scale to 2560x1440 instead.

Those are the only two ways I know to define 3840x2160 @ 60 Hz as a native resolution. If NVIDIA doesn't support either method, then there's no way to do this. This is a driver limitation that NVIDIA would need to fix.