Custom Resolution Utility (CRU)

[codepltn]

Dear friends, My laptop supports up to 300hz but currently it show only 2 options like 60.12 and 300.44 and I think these numbers are the main reason for some horizontal lines at the bottom of my monitor.

When I change the resolution one to another it fixes it but should I correct the numbers as 60 and 300?

P.S. I can't select 300 as a custom from CRU why and how can I do that? Thank you

My PC: Rtx3060 1920×1080 17.3" laptop.

[ToastyX]

(06-03-2023 06:15 PM)bali50 Wrote:  Hi. I've got a spare 65" 4k tv (3840 x 2160 px) that is slightly damaged in the bottom part of the screen only, and rather than dispose of it or sell it for peanuts, I want to use it as a desk monitor, so that only the top 1600 px or so is used by the operating system and the bottom pixels are unused (as screen damaged there). I have it sitting on a stand behind my desk and is already lowered so that only the top part of the telly is above desk height. I would like the windows taskbar to be at desk height which is 1600px from the top of the screen.
I found out about ToastyX on Google, but I have no advanced knowledge of graphics cards and the inner working of monitors etc., so I'm a bit nervous of bricking my monitor. Can ToastyX achieve what I need, and if so, how could I blank off the bottom x number of pixel rows off my screen? Any help would be much appreciated (via Patreon also).

I don't know of a way to use only part of the screen other than centering the image.

[ToastyX]

(06-04-2023 02:08 AM)RzR32 Wrote:  Hello.

I recently discovered CRU and have been using it to create custom resolutions for myself. They've always worked within the normal range for me. I basically use the program to create native 60hz resolutions and then create a custom 77hz resolution through AMD Radeon Software (it's safer to do it that way in my head). I created many of them (1440x1080, 1600x1024, 1280x1080), all with 77hz (maximum my monitor supports, above that it has no video response). But recently I've preferred 1920x1080 since my game (Valorant) doesn't have in-game differences between 4:3 and 16:9 and I ended up finding it a problem. At 1920x1080 the maximum I can put is 73hz. I was curious and went to try to understand why. I read the whole document and understood that the reason for this is probably the "max pixel clock" which in my case is 170MHz (as in the image). But the doubt came to me, shouldn't my limit be 300MHz? I have an RX 570 (which has an HDMI 2.0b output) and an HDMI 2.0 cable as well. Shouldn't it have a higher pixel clock number? Or does this parameter depend on the monitor?

What happens beyond 73 Hz? The max pixel clock is not used if it's not included. AMD's driver also listens to the max TMDS clock in the HDMI data block in the CTA-861 extension block as described under pixel clock limits in the first post. You should be able to go up to 340 MHz with an RX 570 for HDMI 1.x. That kind of monitor wouldn't have HDMI 2.x.

[ToastyX]

(06-04-2023 07:07 AM)orangpelupa Wrote:  sorry for quoting old post. my nvidia control panel only shows RGB and ypbcr 444. its missing 420.

i want to test importing that .dat file to force 420. but that file is no longer there.

The point of that file was because back then CRU couldn't read extension blocks or add 4:2:0 resolutions, so there was no way to make changes while keeping 4:2:0 resolutions. Now you shouldn't need to add 4:2:0 resolutions because they should already be defined if the display supports them, but you can add them manually in a CTA-861 extension block by adding a TV resolutions data block with "4:2:0 resolutions" enabled.

[ToastyX]

(06-06-2023 03:16 PM)LordGurciullo Wrote:  Thanks for the response Boss. So if I was going for absolute lowest lag not using vrr would it help with input lag even slightly?

BTW I'd love to interview you on the channel if you're open to it.

Fast Vactive is mainly helpful with vsync, and the display would have to support it to have any effect. If you care about lag, then you shouldn't use vsync anyway, so there's no point. I'm not doing interviews at this time.

[ToastyX]

(06-08-2023 03:20 PM)Nielson Wrote:  Dear experts,
maybe you can help me with my g-sync problem:

I use my new PC (7800X3D, ASUS B650e-f, MSI RTX 4090 Ventus, Win 11) with 3 identical LG OLED 4K/120Hz 48-inch TV screens (model C1 from 2021, with g-sync compatibility) and I want to have g-sync with all monitors of course.

G-sync works wonderfully on the HDMI output of the 4090 and HDMI 2.1 input of the monitor, in full 10-bit RGB, HDR.

However, g-sync is not recognized on the two screens that are connected to the DisplayPort output of the graphics card (with a monitor input also to HDMI 2.1).

Unfortunately, the "g-sync menu item" is missing in the Nvidia Control Panel and "Monitor Technology" does not appear under the global 3D settings. The monitors connected via DP work in "HDR RGB 10bit full" but with a FIXED 120Hz.

I am not sure whether its the cable: I use one with DP1.4 -> HDMI 2.1 specification, see amazon: AGFINEST DisplayPort 1.4 to HDMI 2.1 8K cable.

Or could I fix this with CRU changing something at my TV settings (What & How)?

Thanks for your help as I am lost.
Nielson

You need active adapters that support converting HDMI VRR to DisplayPort adaptive sync.

[ToastyX]

(06-08-2023 03:27 PM)codepltn Wrote:  Dear friends, My laptop supports up to 300hz but currently it show only 2 options like 60.12 and 300.44 and I think these numbers are the main reason for some horizontal lines at the bottom of my monitor.

When I change the resolution one to another it fixes it but should I correct the numbers as 60 and 300?

P.S. I can't select 300 as a custom from CRU why and how can I do that? Thank you

My PC: Rtx3060 1920×1080 17.3" laptop.

I don't understand what you're saying. Refresh rates don't need to be integers. That wouldn't cause horizontal lines to appear.

[pakos2835]

(04-09-2023 12:02 PM)pakos2835 Wrote:  

(03-17-2023 08:24 PM)ToastyX Wrote:  

(03-17-2023 06:51 PM)pakos2835 Wrote:  someone understand what config must use in cru for 75hz for hp e190i.
as i read internet info, this is standard freq for this model. but i havnt 75hz in os

That's a 60 Hz monitor.

hmm. i see youtube review and online seller's data. there are 75 hz.
ok i set up 75 hz manually.
i copy data from default cru monitor 60 hz profile to new 75 hz profile and now its work at 75 hz.

now i encountering the issue with 1366*768 installation. params used for all other resolutions, from default monitor node (CRU string 1280*1024/60), seems isnt applicable here - i receive monitor window box "wrong sync data" and monitor going off

what right parameters should I use for 1366*768/60, i need this mode for terminal laptop usage with pc via remote desktop, currently i am using a resolution of 1366*768 with the pc monitor turned off

all other custom resolutions 16-9 and 4-3 is work fine

[RzR32]

(06-08-2023 10:38 PM)ToastyX Wrote:  

(06-04-2023 02:08 AM)RzR32 Wrote:  Hello.

I recently discovered CRU and have been using it to create custom resolutions for myself. They've always worked within the normal range for me. I basically use the program to create native 60hz resolutions and then create a custom 77hz resolution through AMD Radeon Software (it's safer to do it that way in my head). I created many of them (1440x1080, 1600x1024, 1280x1080), all with 77hz (maximum my monitor supports, above that it has no video response). But recently I've preferred 1920x1080 since my game (Valorant) doesn't have in-game differences between 4:3 and 16:9 and I ended up finding it a problem. At 1920x1080 the maximum I can put is 73hz. I was curious and went to try to understand why. I read the whole document and understood that the reason for this is probably the "max pixel clock" which in my case is 170MHz (as in the image). But the doubt came to me, shouldn't my limit be 300MHz? I have an RX 570 (which has an HDMI 2.0b output) and an HDMI 2.0 cable as well. Shouldn't it have a higher pixel clock number? Or does this parameter depend on the monitor?

What happens beyond 73 Hz? The max pixel clock is not used if it's not included. AMD's driver also listens to the max TMDS clock in the HDMI data block in the CTA-861 extension block as described under pixel clock limits in the first post. You should be able to go up to 340 MHz with an RX 570 for HDMI 1.x. That kind of monitor wouldn't have HDMI 2.x.

At 1920x1080 above 73 Hz the image has "artifacts". As if I had chosen the "interlaced" option.

So all I have to do to achieve a higher clock is add an extension block (or import one of the hdmi.dat files from the first post)? So I can create a resolution with higher HZ?

[ToastyX]

(06-09-2023 05:59 PM)RzR32 Wrote:  At 1920x1080 above 73 Hz the image has "artifacts". As if I had chosen the "interlaced" option.

So all I have to do to achieve a higher clock is add an extension block (or import one of the hdmi.dat files from the first post)? So I can create a resolution with higher HZ?

Your monitor already has an extension block with an HDMI data block. Why would you need to add another one? That has nothing to do with artifacts anyway. If you can set the refresh rate, then it's a monitor limitation and not a pixel clock limit on the GPU's end.