Custom Resolution Utility (CRU)

[Jija25]

Hi again,
When I change my desktop resolution on 1080x1024, but my active resolution signal stay in 1920x1080 it's a normal or not?

[ToastyX]

(07-10-2023 04:02 PM)Jija25 Wrote:  Hi again,
When I change my desktop resolution on 1080x1024, but my active resolution signal stay in 1920x1080 it's a normal or not?

That's normal with GPU scaling.

[Ltncook]

Hello I have two 27 inch screens, one in 2560*1440, the other in 1920*1080.
I want to put both in 2560*1440 format. From my personal PC, with Nvdia, I manage to force the 2560*1440 format on the second (only the format, not the real resolution which is materially limited).
It works well. But for work, I use the same screens but with another PC that doesn't have an nvdia card.
I tried to set 2560*1440 on CRU, but I have a message on the screen telling me that it "cannot display this video mode, change computer display input to 1920*1080".

Do you have an idea ?

[Man]

Is it, by any chance, possible to somehow force half-vsync in games via CRU?

I've an old AMD GPU (R9-380X) and, for some reason or another, it doesn't support half-vsync i.e 30FPS/60Hz even though pretty much all Nvidia GPUs have that option.

Since CRU is such a powerful utility with so many options available (most of which I don't understand, quite frankly), I was wondering if it's possible to somehow enable half-vsync with it.

I did try underclocking my monitor (Asus VH222) but it just bottoms out at 41Hz + I don't really want to use 30Hz, for one reason: Stuttering.

If the game skips a frame at 30Hz, the GPU will have to wait for the next refresh cycle and that means the delay can be as long as 33.33ms. Whereas with 60Hz, that wait time can be at most 16.66ms.

But if half-vsync isn't an option then do tell me how I can run my panel at 30Hz. I'd take any potential stuttering over uneven frame pacing and motion judders any day!

Thanks!

Here are my monitor's timings at 41Hz (do ignore all those custom 16:9 resolutions ). It just goes blank at 40Hz and below:

[powerneek]

i tried to overclocked my monitor to 70hz but a a black screen appeared with some whit lines forming, after that i went to safemode and deleted the options and went back to normal mode, it works but theres now some faint lines that flickers, did i damaged my monitor?

[alexaedita]

(07-09-2023 07:47 PM)ToastyX Wrote:  

(07-07-2023 06:21 PM)Snow_Chain Wrote:  Finally, CRU is work with 7900XTX with the latest driver 23.7.1

Good to hear!

I can confirm it truly does work. I'm so glad.

[Man]

(07-14-2023 10:42 PM)alexaedita Wrote:  

(07-09-2023 07:47 PM)ToastyX Wrote:  

(07-07-2023 06:21 PM)Snow_Chain Wrote:  Finally, CRU is work with 7900XTX with the latest driver 23.7.1

Good to hear!

I can confirm it truly does work. I'm so glad.

That's great news.

I wonder if ATI/AMD did it on purpose, though I'm not entirely sure what they aimed to gain by barring users from modifying EDID values! It's not like they get royalties for FreeSync / VESA VRR technology.

So, I guess, it all boils down to Navi 31. Per MLID, AMD faced (if not still facing) their share of issues with the chiplet-based Navi 31 and it's still not working to its fullest potential so that might be the reason behind it?

In any case, I hope the issue has been fixed all across the 7000 Series / RDNA3 line-up as I 'might' end up with a 7600.

[alexaedita]

(07-15-2023 02:09 AM)Man Wrote:  

(07-14-2023 10:42 PM)alexaedita Wrote:  

(07-09-2023 07:47 PM)ToastyX Wrote:  

(07-07-2023 06:21 PM)Snow_Chain Wrote:  Finally, CRU is work with 7900XTX with the latest driver 23.7.1

Good to hear!

I can confirm it truly does work. I'm so glad.

That's great news.

I wonder if ATI/AMD did it on purpose, though I'm not entirely sure what they aimed to gain by barring users from modifying EDID values! It's not like they get royalties for FreeSync / VESA VRR technology.

So, I guess, it all boils down to Navi 31. Per MLID, AMD faced (if not still facing) their share of issues with the chiplet-based Navi 31 and it's still not working to its fullest potential so that might be the reason behind it?

In any case, I hope the issue has been fixed all across the 7000 Series / RDNA3 line-up as I 'might' end up with a 7600.

Could be a variety of reasons for it. These are stable cards indeed but have issues like any other previous release. AMD cards become better over time, as long as AMD supports them. Not necessarily better than Nvidia, but better than they originally were.

[ToastyX]

(07-12-2023 04:02 PM)powerneek Wrote:  i tried to overclocked my monitor to 70hz but a a black screen appeared with some whit lines forming, after that i went to safemode and deleted the options and went back to normal mode, it works but theres now some faint lines that flickers, did i damaged my monitor?

What monitor is this? Do you still see the flickering lines? Some LG panels seem to have a design flaw that causes certain patterns to induce flicker, which can happen when trying unsupported resolutions or refresh rates. Usually the flicker goes away after a few hours.

[ToastyX]

(07-11-2023 09:35 AM)Man Wrote:  Is it, by any chance, possible to somehow force half-vsync in games via CRU?

I've an old AMD GPU (R9-380X) and, for some reason or another, it doesn't support half-vsync i.e 30FPS/60Hz even though pretty much all Nvidia GPUs have that option.

Since CRU is such a powerful utility with so many options available (most of which I don't understand, quite frankly), I was wondering if it's possible to somehow enable half-vsync with it.

CRU mainly deals with monitor capabilities, while vsync is implemented on the GPU's end. Your best option would be to use a frame rate cap together with vsync.