Custom Resolution Utility (CRU)

[ToastyX]

(08-29-2024 08:12 AM)juanme555 Wrote:  Does DisplayPort have the same 25mhz minimum pixelclock threshold as HDMI?

I can't find any information on DisplayPort's minimum pixel clock. I know HDMI and DVI require at least 25 MHz. Strangely I just tested DisplayPort and HDMI with a GTX 1070 and the driver allows less than 25 MHz for both. I don't know about AMD, but I remember there being a 25 MHz limit.

[ToastyX]

(09-02-2024 02:08 PM)FunPhaSma Wrote:  hi, I clicked on reset-all, now it says no display found on registry, I don’t know what to do, please answer, I tried all the ways, pleeease

You need to reboot or run restart.exe to redetect the displays.

[krisdee1981]

Hi thank you for this amazing tool. I used this in the past for many different monitors and TVs to create custom resolutions, or to change VRR window.

Right now I'm playing with AW3423DWF. I love the screen, but flickering in VRR is absolutely terrible in some problematic games like Alan Wake 2 for example, or Tekken 8 in loading screens, and character select screen, when 3d models load in and game stutters.
I tried to change VRR range from default 48-165 to 80-165 or even 90-165 and it flickers less but still not ideal.
The only way to have some kind of VRR without flicker is to use 60Hz. I actually created custom 63Hz using QFT so pixel clock is the same as default 165Hz to hopefully reduce input lag and leave some room for vsync. I Mostly play fighting games and graphically demanding single player games, using gamepad, locking everything to 60fps.
I'm using Nvidia GPU connected to display port and my issue is that VRR kicks in @50fps, it's a little bit high for my liking. I would like to lower it, but even 47-165 allready screen goes black.
Is there any setting in CRU that could let me lower it?
My previous 4k 60Hz LCD monitor had really nice 40-60 range.

[ToastyX]

(09-02-2024 02:55 PM)krisdee1981 Wrote:  Hi thank you for this amazing tool. I used this in the past for many different monitors and TVs to create custom resolutions, or to change VRR window.

Right now I'm playing with AW3423DWF. I love the screen, but flickering in VRR is absolutely terrible in some problematic games like Alan Wake 2 for example, or Tekken 8 in loading screens, and character select screen, when 3d models load in and game stutters.
I tried to change VRR range from default 48-165 to 80-165 or even 90-165 and it flickers less but still not ideal.
The only way to have some kind of VRR without flicker is to use 60Hz. I actually created custom 63Hz using QFT so pixel clock is the same as default 165Hz to hopefully reduce input lag and leave some room for vsync. I Mostly play fighting games and graphically demanding single player games, using gamepad, locking everything to 60fps.
I'm using Nvidia GPU connected to display port and my issue is that VRR kicks in @50fps, it's a little bit high for my liking. I would like to lower it, but even 47-165 allready screen goes black.
Is there any setting in CRU that could let me lower it?
My previous 4k 60Hz LCD monitor had really nice 40-60 range.

You need to reduce the vertical blanking/total if you want to try a lower range. Using QFT would be like trying to change the range at 165 Hz, so there's no headroom. Other than that, you'll be limited by whatever the monitor will accept.

[ToastyX]

(09-02-2024 02:40 PM)FunPhaSma Wrote:  how reboot? And i run (restart.exe)

---

Now it says that my type of monitor is generic PnP monitor and not Acer

I don't think you should be using this program if you don't understand what you're doing.

[krisdee1981]

(09-02-2024 03:52 PM)ToastyX Wrote:  You need to reduce the vertical blanking/total if you want to try a lower range. Using QFT would be like trying to change the range at 165 Hz, so there's no headroom. Other than that, you'll be limited by whatever the monitor will accept.

I'm afraid it's monitor limitation. I tried default 60Hz resolution that has only 1/3 of pixel clock, but screen still goes black below 48?

[ovitoj]

(08-30-2024 02:09 PM)willianwojcik Wrote:  Hello

I've been using CRU since I bought an OLED C2 in early 2023. The software is exceptional, it helped me set the 3840x1600 ultrawide resolution as native in the NVIDIA control panel

About that, since the latest 556.12 driver, the 3840x1600 ultrawide resolution is locked at 60Hz only

There is nothing wrong with the CRU, just the NVIDIA drivers are problematic, as always

Several other users are reporting to NVIDIA, including me, waiting for a solution

https://www.nvidia.com/en-us/geforce/for...d-at-60hz/

Yup! Same setup, so I'm on the same boat.

Were you able to find a solution? A downgrade? Or do we wait for a new driver?

[krisdee1981]

(09-04-2024 02:31 PM)ovitoj Wrote:  

(08-30-2024 02:09 PM)willianwojcik Wrote:  Hello

I've been using CRU since I bought an OLED C2 in early 2023. The software is exceptional, it helped me set the 3840x1600 ultrawide resolution as native in the NVIDIA control panel

About that, since the latest 556.12 driver, the 3840x1600 ultrawide resolution is locked at 60Hz only

There is nothing wrong with the CRU, just the NVIDIA drivers are problematic, as always

Several other users are reporting to NVIDIA, including me, waiting for a solution

https://www.nvidia.com/en-us/geforce/for...d-at-60hz/

Yup! Same setup, so I'm on the same boat.

Were you able to find a solution? A downgrade? Or do we wait for a new driver?

Integer scaling should give you access to the same refresh rates as your native resolution.

[nettiking]

Hello!,

Whenever I use CRU to remove TV resolutions my NVCP goes away. Does anyone know how to fix this? My ultimate goal is to use DLDSR at the correct resolution but it doesn't scale correctly because of the TV resolutions.

TL;DR.

Is there any way for me to use CRU to remove TV resolutions without making my NVCP non functional?

Thank you.

[ToastyX]

(09-05-2024 03:12 PM)nettiking Wrote:  Hello!,

Whenever I use CRU to remove TV resolutions my NVCP goes away. Does anyone know how to fix this? My ultimate goal is to use DLDSR at the correct resolution but it doesn't scale correctly because of the TV resolutions.

TL;DR.

Is there any way for me to use CRU to remove TV resolutions without making my NVCP non functional?

Thank you.

That's an NVIDIA control panel bug that you should report to NVIDIA. Also if you are removing 4K resolutions, make sure that you remove them from the HDMI data block as well.