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1440p 360hz on CRU to 1720x1080
03-23-2024, 05:05 AM
Post: #1
1440p 360hz on CRU to 1720x1080
I have an AW2725DF, Nvidia RTX 3080, 8k 1.4 DP Cable. I have an elgato 4k capture card as well that is plugged in which i'll be cloning but I don't think it has much of a play on this as i've tried doing it without this plugged in

I want to play stretched and turn 2560x1440 to 1720x1080 360hz for better frames. I legit spent I would say about 10 hours trying to get this to work but this is my only hope now.

I am using Display ID 1.3 at the bottom and deleting everything else. I first copy the one that shows 1440p and 360hz, I delete that one and add a new one, paste, change resolution, I have tried with different timings but the resolution won't pop up once I try to change it. when I add a standard resolution of 1920x1080 with it, it works but only sets as desktop resolution and not active. I try to delete the monitor and "reset-all" but why is that resolution still there despite me deleting the entry????? I also tried SRE to delete 2k resolution off and it did nothing. I reinstalled my gpu and I believe the custom resolution was still there after. I kept changing things a bunch and eventually it disappeared but I can't get the resolution to show up on advanced display settings while getting it on active resolution. PLEASE HELP my head is actually hurting.
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03-23-2024, 01:34 PM
Post: #2
RE: 1440p 360hz on CRU to 1720x1080
I don't understand why people complicate this. Why not just add 1720x1080 with SRE and use GPU scaling? Why does it need to be display scaling?

If you want display scaling for some reason, things get more complicated because the monitor might not support the resolution correctly, and NVIDIA's driver has issues with EDID overrides and custom resolutions with certain monitors, especially monitors with DSC. It should be as simple as adding 1720x1080 @ 360 Hz in the DisplayID extension block and setting the scaling to display in the NVIDIA control panel. If the resolution isn't available, then it's a driver bug that needs to be reported to NVIDIA, and using SRE would be the only option. Also 1920x1080 is one of the default resolutions that should already be available, so adding it does nothing.
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03-23-2024, 02:45 PM
Post: #3
RE: 1440p 360hz on CRU to 1720x1080
(03-23-2024 01:34 PM)ToastyX Wrote:  I don't understand why people complicate this. Why not just add 1720x1080 with SRE and use GPU scaling? Why does it need to be display scaling?

If you want display scaling for some reason, things get more complicated because the monitor might not support the resolution correctly, and NVIDIA's driver has issues with EDID overrides and custom resolutions with certain monitors, especially monitors with DSC. It should be as simple as adding 1720x1080 @ 360 Hz in the DisplayID extension block and setting the scaling to display in the NVIDIA control panel. If the resolution isn't available, then it's a driver bug that needs to be reported to NVIDIA, and using SRE would be the only option. Also 1920x1080 is one of the default resolutions that should already be available, so adding it does nothing.

The "customize resolution" is greyed out and I unfortunately cannot use GPU scaling, something to do with DSR. I've tried 1550x1050 which has showed up as a resolution but only shows it on the desktop and not active signal resolution, is there a possible way to have the same resolution show on both? thanks for the response
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03-23-2024, 09:01 PM
Post: #4
RE: 1440p 360hz on CRU to 1720x1080
I can't make sense of your posts. If the active and desktop resolutions are different, that means the GPU is scaling, so how are you not able to use GPU scaling? If you want them to be the same, then you have to use display scaling.
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03-23-2024, 10:02 PM
Post: #5
RE: 1440p 360hz on CRU to 1720x1080
(03-23-2024 09:01 PM)ToastyX Wrote:  I can't make sense of your posts. If the active and desktop resolutions are different, that means the GPU is scaling, so how are you not able to use GPU scaling? If you want them to be the same, then you have to use display scaling.

Sorry, didn't explain well. 1550x1050 I tried on CSU and would pop up but wouldn't have display and active res the same. I thought even when you are GPU scaling both desktop and active should be the same resolution, them not being makes sense to me now. by "gpu scaling" I assumed you meant doing the "custom resolution" on nvidia control panel which I can't do and is why I dismissed that idea very quickly. would using SRE and changing scale to "gpu" give me the same frames as properly using display scaling? the main reason I want to lower my res is because my computer can't run 2k and 360fps stable. Thanks for your help
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03-25-2024, 02:37 AM
Post: #6
RE: 1440p 360hz on CRU to 1720x1080
GPU scaling renders at the lower resolution, so you'll get the higher frame rate.
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