Custom Resolution Utility (CRU)

[ToastyX]

(01-26-2015 05:05 AM)Signal Wrote:  I have an LG 31MU97 display which has a native resolution of 4096x2160@60Hz over a DisplayPort 1.2 MST connection.

At some point, windows stopped recognizing this resolution and is defaulting to 3840x2160@60Hz (which is in the EDID).

I tried more than a few scratch Win7 x64 installs with different nVidia drivers, trying different cables, different nVidia cards (GTX980, GTX780) I just can't get this resolution to be recognized by default.

In the nvidia control panel I can set a custom resolution but apps/games won't recognize it as they did before.

I can't set the same resolution with CRU though as it won't accept 4096 for the horizontal.

It's not possible to define 4096x2160 as a detailed resolution. MST connections should appear as multiple displays. Does CRU show two active displays? If so, each display would need to be defined as 2048x2160, but NVIDIA also has issues with EDID overrides and Surround, which NVIDIA uses to combine the displays.

You can get most games to recognize 4096x2160 by installing a monitor information file: https://www.monitortests.com/4096x2160.zip

Install using the Device Manager -> Monitors -> Right-click on the monitor -> Update Driver Software... -> Browse my computer for driver software -> Let me pick from a list of device drivers on my computer -> Have Disk... -> Browse for the .inf file -> OK -> Next -> Install this driver software anyway