Custom Resolution Utility (CRU)

[ToastyX]

(02-02-2023 02:07 PM)Pierrot Wrote:  Hello everyone, I have this problem: I have a monitor with resolution 1920x1280 and I want to set it to 1920x823 to play in 21:9.

As you know, I have two ways to do this, through the NVIDIA Control Panel and through CRU, but that's where the problem arises:

•Using the NVIDIA Control Panel, setting the Timing values to Automatic, I will have the resolution of 1920x823 in 21:9, but it will be a bit blurred and not defined like 1920x1280.
However, I solved this problem by leaving, through Manual, the same Timing values in 1920x1280.

In theory, I could have solved, 1920x823 is defined as 1920x1280 and I would have my 21:9, but I would like to use the NVIDIA DLDSR, and to do this I cannot use the custom resolution but CRU, and with the latter the second problem arises:

•Setting the resolution of 1920x823 with CRU, it gives me as if small slightly blurred vertical lines alternate with other lines where you can see well, and the thing is quite noticeable with small text.

Now I would like to obtain the same defined result that I get with NVIDIA, I tried to do as on the control panel that even with the resolution of 1920x823 I inserted the timing values of 1920x1280, but on CRU Bach Porch and Blanking always change automatically when I modify Total and I cannot insert for all the same values as the original resolution, because these two always remain different, and therefore I think that for this reason it comes out staggered, that is, it has nothing to do with the screen and with a different aspect ratio

What can I do? Thank you.

The only reason there would be blur is if there's scaling involved. What monitor has a resolution of 1920x1280? Your last statement doesn't make sense. The total is the active resolution + blanking, and the blanking is the front porch + sync width + back porch, so the values are supposed to change. NVIDIA only shows the total and not the back porch or blanking, but there is no difference because you only need one of them to calculate the other two. The resolution you created with NVIDIA is a GPU-scaled resolution because the resolution at the top doesn't match the active resolution that is sent to the monitor. CRU can't create GPU-scaled resolutions, so the active resolution is sent to the monitor unless GPU scaling is enabled. That means if GPU scaling is not enabled, the blur is coming from the monitor. The monitor needs to be set to not scale the image. If the monitor is set to not scale, then maybe it can't display an odd number of lines correctly, so try an even number. Another option is to enable GPU scaling in the NVIDIA control panel and set it to aspect or no scaling, but if you just want a GPU-controlled resolution, you can use this instead of CRU: https://www.monitortests.com/forum/Threa...Editor-SRE