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***ToastyX*** · 03-09-2025, 07:25 PM

(03-09-2025 05:48 PM)emse7en Wrote: My laptop's specification says "2 USB Type-C® 10Gbps signaling rate (USB Power Delivery, DisplayPort™ 1.4);" does this mean that the laptop supports Display Port Alt Mode and any DP 1.4 -> USB-C cable will support 240Hz at 1440p resolution? (AMD Ryzen 5 PRO 5650U)

Yes, that's what it means.

(03-09-2025 05:48 PM)emse7en Wrote: And is there a chance that with the new DP->USBC cable on the external Lenovo L27q-10 monitor I will achieve a higher refresh rate of 1440p in CRU than the current 67 Hz? Currently at 68Hz a message pops up to reduce the refresh rate.

That's totally up to the monitor.

(03-09-2025 05:48 PM)emse7en Wrote: Below are my current settings in CRU, are these the best possible settings? I use the "CVT-RB standard" timing on all resolutions.

There is no best possible. Use whatever works.

p14t1pu516 · 03-09-2025, 10:28 PM

(03-08-2025 10:50 PM)ToastyX Wrote:
(03-08-2025 04:00 AM)p14t1pu516 Wrote: Toasty, thanks for all your time. I will contact Intel.
When connecting via VGA, I remembered that it also worked badly, there is a slight rain on the screen.
I want to ask you two last questions:

1 does it make sense to use a HDMI-VGA signal converter? Could it solve the problem that I can't solve with cru? (it doesn't matter if it looks like VGA and not HDMI).

2 another possibility, if I use a VGA-HDMI converter, could it improve the problem of rain on the screen?
HDMI to VGA (motherboard to TV) might have a clearer signal, and you wouldn't need to use CRU because VGA on your TV doesn't have the same issues. VGA to HDMI wouldn't make sense to do if the VGA port on the motherboard is noisy.

I understand perfectly. Toasty, I really appreciate your help.

chris89 · 03-11-2025, 12:39 AM

@ToastyX
Can you please simply tell me or explain by tutorial, easy to understand how to achieve the 340Mhz pixel clock HDMI after patching & setting 340hz in CRU. What else do I need to do?
Thanks

***ToastyX*** · 03-11-2025, 05:05 PM

(03-11-2025 12:39 AM)chris89 Wrote: @ToastyX
Can you please simply tell me or explain by tutorial, easy to understand how to achieve the 340Mhz pixel clock HDMI after patching & setting 340hz in CRU. What else do I need to do?
Thanks

What is the issue you are having? It shouldn't be that hard.

Arnaldo · 03-11-2025, 08:28 PM

Hello Toasty,

Thanks a lot for your fantastic tool.

I've successfully patched my Radeon 4250 driver, now trying to set a new resolution using CRU tool.

The tool shows a detailed resolution of 2561x1440 but I just can't get it to show at the the windows config screen.

What am I missing here?

Thank you

***ToastyX*** · 03-11-2025, 08:32 PM

(03-11-2025 08:28 PM)Arnaldo Wrote: I've successfully patched my Radeon 4250 driver, now trying to set a new resolution using CRU tool.

The tool shows a detailed resolution of 2561x1440 but I just can't get it to show at the the windows config screen.

Your GPU is way too old. HDMI 1.0-1.2 only supported up to 165 MHz pixel clock, and the patcher does not support 4000-series GPUs.

kamiccolo · (Last edited: Yesterday, 01:37 AM by kamiccolo)

(03-11-2025 08:32 PM)ToastyX Wrote:
(03-11-2025 08:28 PM)Arnaldo Wrote: I've successfully patched my Radeon 4250 driver, now trying to set a new resolution using CRU tool.

The tool shows a detailed resolution of 2561x1440 but I just can't get it to show at the the windows config screen.
Your GPU is way too old. HDMI 1.0-1.2 only supported up to 165 MHz pixel clock, and the patcher does not support 4000-series GPUs.

Heyo Toasty,

I was wondering if i could get your help with configuring cru with my monitor. PG348Q old school. I have always had issues with the extension block causing games to not read the supported resolution list ingame. Adding in or even leaving in the stock resolutions in the extension block override ingame. A good example is metro last light. Im not too sure why its listed like that but it breaks some games reading resolution and then more games reading the hz. Since the default detailed resolution is 60hz. This is an overclockable monitor. 60-100hz. I can change the main one to the 100 hz and swap over the settings. Then I delete everything except for the 100hz in the extension block and it seems to keep gsync enabled and the 100 hz. This way the games detect 100hz immidiately and dont override res list. Is this the proper way to do this or no?

Ezzelin · Yesterday, 11:06 AM

Hello! I've got a PC CRT monitor that I have hooked up to an Nvidia GPU through a Tendak HDMI to VGA adapter on Windows 11. The adapter works fine, and I've defined a custom resolution in the Nvidia Control Panel before successfully, but now I'm trying to get 640x480 to work. As it didn't show up in the resolution picker, I first tried defining it in the Nvidia Control Panel, and it tested successfully, but then when switching to the resolution later it would be a different timing that would be too narrow and beyond the ability to widen on the CRT. I then discovered CRU and decided to try and define the resolution there, but regardless of what I do in CRU it doesn't seem to be defining any new resolutions or changing anything in the Nvidia Control Panel resolution picker. For that matter, the custom resolution that I previously definied in the Nvidia Control Panel isn't showing up in CRU either. I've tried rebooting multiple times and using the restart64.exe utility, but nothing is changing. Is there something I'm missing here? I would love to define a 640x480 mode using custom timing and have it stick. Thank you!

***ToastyX*** · (Last edited: Yesterday, 03:12 PM by ToastyX)

(Yesterday 11:06 AM)Ezzelin Wrote: Hello! I've got a PC CRT monitor that I have hooked up to an Nvidia GPU through a Tendak HDMI to VGA adapter on Windows 11. The adapter works fine, and I've defined a custom resolution in the Nvidia Control Panel before successfully, but now I'm trying to get 640x480 to work. As it didn't show up in the resolution picker, I first tried defining it in the Nvidia Control Panel, and it tested successfully, but then when switching to the resolution later it would be a different timing that would be too narrow and beyond the ability to widen on the CRT. I then discovered CRU and decided to try and define the resolution there, but regardless of what I do in CRU it doesn't seem to be defining any new resolutions or changing anything in the Nvidia Control Panel resolution picker. For that matter, the custom resolution that I previously definied in the Nvidia Control Panel isn't showing up in CRU either. I've tried rebooting multiple times and using the restart64.exe utility, but nothing is changing. Is there something I'm missing here? I would love to define a 640x480 mode using custom timing and have it stick. Thank you!

Windows does not list resolutions below 800x600 in the display settings. You have to go to display settings > advanced display settings > display adapter properties > list all modes, which will list 640x480 but nothing below that. CRU only shows what's in the EDID. NVIDIA control panel custom resolutions are completely separate. Also HDMI requires a pixel clock of at least 25 MHz, but I'm not sure if NVIDIA enforces that.

***ToastyX*** · Yesterday, 03:13 PM

(Yesterday 01:32 AM)kamiccolo Wrote: I was wondering if i could get your help with configuring cru with my monitor. PG348Q old school. I have always had issues with the extension block causing games to not read the supported resolution list ingame. Adding in or even leaving in the stock resolutions in the extension block override ingame. A good example is metro last light. Im not too sure why its listed like that but it breaks some games reading resolution and then more games reading the hz. Since the default detailed resolution is 60hz. This is an overclockable monitor. 60-100hz. I can change the main one to the 100 hz and swap over the settings. Then I delete everything except for the 100hz in the extension block and it seems to keep gsync enabled and the 100 hz. This way the games detect 100hz immidiately and dont override res list. Is this the proper way to do this or no?

I don't know what you mean. The extension block has nothing to do with your issues. The location of the resolutions doesn't matter except for the first detailed resolution defining the native resolution, and Windows only cares about the resolution part when determining the native resolution, so the refresh rates can be in any order.

Metro: Last Light forces 60 Hz if in-game vsync is enabled. That's a game-specific issue and nothing to do with extension blocks.

NVIDIA control panel has an option in the 3D settings to set the preferred refresh rate to highest available, which should make games use the highest refresh rate if possible.

You don't need to define the same resolution and refresh rate twice. You just need one detailed resolution in the main window to define the native resolution. You don't need to add the same resolution with the same refresh rate in the extension block.