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***ToastyX*** · 05-10-2022, 11:30 PM

(05-10-2022 08:51 PM)gogeta01 Wrote: I have a 1660ti. Could this happen because lfc kicks in at 64 fps instead of the 80 that the default setting is? Would reinstalling the drivers or trying an older version make any difference?

If LFC were kicking in, lower frame rates should be smooth regardless of the range. I don't see a way to check what range the driver is using with NVIDIA. How are you verifying the range with the demo?

gogeta01 · 05-11-2022, 02:12 AM

(05-10-2022 11:30 PM)ToastyX Wrote:
(05-10-2022 08:51 PM)gogeta01 Wrote: I have a 1660ti. Could this happen because lfc kicks in at 64 fps instead of the 80 that the default setting is? Would reinstalling the drivers or trying an older version make any difference?
If LFC were kicking in, lower frame rates should be smooth regardless of the range. I don't see a way to check what range the driver is using with NVIDIA. How are you verifying the range with the demo?

The monitor has a Hz counter. Anything above 64 fps and the Hz is 1:1. When i set min/max to 64 or lower it doubles.

***ToastyX*** · 05-11-2022, 06:26 PM

(05-11-2022 02:12 AM)gogeta01 Wrote: The monitor has a Hz counter. Anything above 64 fps and the Hz is 1:1. When i set min/max to 64 or lower it doubles.

I'm not sure how NVIDIA handles the lower end of the range. With my monitor I see LFC kicking in even when the frame rate is still within the default range. Maybe the driver has some internal overrides for certain monitors.

gogeta01 · (Last edited: 05-12-2022, 01:46 AM by gogeta01)

(05-11-2022 06:26 PM)ToastyX Wrote:
(05-11-2022 02:12 AM)gogeta01 Wrote: The monitor has a Hz counter. Anything above 64 fps and the Hz is 1:1. When i set min/max to 64 or lower it doubles.
I'm not sure how NVIDIA handles the lower end of the range. With my monitor I see LFC kicking in even when the frame rate is still within the default range. Maybe the driver has some internal overrides for certain monitors.

I've found posts about people that managed to edit the range but they are not recent. Maybe they did change something

Edit: I tried an older driver version and cru is working. The default is indeed 80-240 and by setting it to 41-240, I got 51-240 in the demo. I guess I'll have to find the most recent one that allows me to modify the range.
Thank you a lot for your help

Fariborz76 · 05-12-2022, 01:53 PM

Hey there,
recently I installed windows 10 and moved from windows 7!
so I decided to improve my refresh rate as i did it in windows 7, but I did it in windows 10 and nothing changes!
what is the problem ?
working fine on windows 7 but not on windows 10 ... ?!?!
my refresh rate stuck at 59.973

***ToastyX*** · 05-12-2022, 03:05 PM

(05-12-2022 01:53 PM)Fariborz76 Wrote: recently I installed windows 10 and moved from windows 7!
so I decided to improve my refresh rate as i did it in windows 7, but I did it in windows 10 and nothing changes!
what is the problem ?
working fine on windows 7 but not on windows 10 ... ?!?!
my refresh rate stuck at 59.973

You need to be more specific. What exactly are you doing? What is the resolution and timing parameters you're trying to use? What monitor and GPU do you have? What cable?

Phibbl · 05-12-2022, 03:41 PM

(05-06-2022 01:31 AM)ToastyX Wrote:
(05-05-2022 07:14 AM)Phibbl Wrote: Just did that and cant go above 76Hz. Do i have to change something else besides the vertical range limiits?
What happens above 76 Hz?

Sorry for the late reply. Didn't realize that you answered my post Confused

At 77Hz my Pixels are kinda misalligned and after 78Hz my screen just stays black.

Razkain · 05-12-2022, 04:01 PM

Can I add a detailed resolution without taking it to the first place and setting it as the second? Leaving the default first as native and the new one with the same resolution but different hz in second place? Can this cause problems or visual differences from setting it as the first resolution? Thanks for any reply

ZoRG172 · (Last edited: 05-12-2022, 05:23 PM by ZoRG172)

ToastyX
Hello, thanks for your software. I have a TV 4K/120 Hz. I need to make a custom resolution like 3200x1800/80Hz. I used to just create it in the Nvidia control panel, or enable their scaling feature to add intermediate resolutions. But now, when such resolutions are enabled, the color signal becomes 4:2:2. In native 3840x2160 120Hz produces true 4:4:4. It started with all the latest nvidia drivers.
Using your Scaled Resolution Editor (SRE) utility, I created a custom resolution of 3200x1800 and it works with 4:4:4 chroma, but you can only select standard 60/100/120 Hz refresh rates, and I need 80Hz.
Through CRU, I added a resolution with the parameters from the screenshot via DisplayID 2.0, but it still goes into color 4.2.2. How to be? Can it be possible to replace the standard 100Hz refresh rate with 80Hz?
Screen

***ToastyX*** · 05-13-2022, 12:20 AM

(05-12-2022 05:20 PM)ZoRG172 Wrote: Through CRU, I added a resolution with the parameters from the screenshot via DisplayID 2.0, but it still goes into color 4.2.2. How to be? Can it be possible to replace the standard 100Hz refresh rate with 80Hz?

I don't see why that wouldn't work at 4:4:4 if the GPU supports HDMI 2.1. That sounds like a driver bug or some limitation. HDMI 2.1 displays normally use CTA-861 standard TV resolutions, so maybe there's some NVIDIA-specific issue with non-TV resolutions.