Custom Resolution Utility (CRU)

[Bibimbap]

Hi,

My maximum resolution is 3840 x 1080 and I would like to have a resolution of 5120 x 1440 but I can't add this resolution.

I use the HDMI of a laptop HP Elitebook with an Intel UHD 620 graphic card but I don't know what generation it is so I don't know what part of the documentation I should follow.
I tried adding an extension block but it didn't work. I've also tried exporting an .exe but that doesn't work neither.

I only use my external screen, I don't use the laptop screen.

Thank you for your help.

[ToastyX]

(01-05-2024 11:07 AM)Bibimbap Wrote:  My maximum resolution is 3840 x 1080 and I would like to have a resolution of 5120 x 1440 but I can't add this resolution.

I use the HDMI of a laptop HP Elitebook with an Intel UHD 620 graphic card but I don't know what generation it is so I don't know what part of the documentation I should follow.
I tried adding an extension block but it didn't work. I've also tried exporting an .exe but that doesn't work neither.

I only use my external screen, I don't use the laptop screen.

The UHD 620 does not support HDMI 2.0, so it's limited to 300 MHz pixel clock.

[ToastyX]

(01-05-2024 09:48 AM)WJUI Wrote:  Unfortunately my second monitor is no longer detected by my PC.

I used CRU to make a custom resolution for my 24" side monitor to go with my 27" main monitor for sim racing. I then set the 1080p monitor to go to 2343x1152 or so, so that I could use my 27" monitor at 1440p instead of 1080p. It worked, I played my game. Didn't know if the resolution was actually working correctly so was gonna go back and test it with other resolutions.

Then when I tried to get back on again it just showed a black screen on the side monitor. Soon after the monitor disappeared from my PC display settings, and detecting yields nothing.

To try to fix it, I used reset.all, restart.exe, restarted my computer. I pressed delete on the CRU UI because I heard that was a way to reset the settings for the monitor, now the monitor isn't on CRU anymore (before it was still on there with a * even though it wasn't detected by PC anymore).

I'm using an HDMI 2.1, Never had a problem before--I just plug it in and the monitor works right away. Didn't do anything except use CRU. (Mentioning because people were saying it's probably the HDMI cable, an issue with the monitor, etc.)

I searched for this and found a few discussions but no concrete solutions. Anybody know what to do?

I guess the GPU had an issue when making the 1080p monitor run at the weird and above-max resolution, but beyond that I don't know what it is or what to do to fix it. Isa clean install of graphics card drivers likely to fix it? Unfortunately I'm confused on how exactly to do that in my short time researching it so far

Edit: I have an Intel Arc a750 in the PC

Usually when a monitor isn't detected, it's an issue with the monitor or the connection to the monitor, but I don't know if Intel's driver has some bug that could also cause this.

Maybe the driver failed to enable after running restart.exe, which could cause the second screen to be ignored. Check Device Manager under "Display adapters" and make sure the Intel GPU is enabled.

If the GPU is enabled, try unplugging the monitor's power for a minute to "reboot" the monitor just in case it's a firmware glitch.

If that doesn't work, uninstall the graphics driver using DDU with Windows in safe mode: https://www.wagnardsoft.com/display-driv...aller-ddu-

Then reinstall the Intel graphics driver. If that doesn't help, check if the monitor works by itself without the other monitor. If it still won't work, then something might be wrong with the monitor itself. Custom resolutions normally wouldn't damage a monitor like this, so I'm not sure what could have happened.

[Bibimbap]

(01-05-2024 03:07 PM)ToastyX Wrote:  

(01-05-2024 11:07 AM)Bibimbap Wrote:  My maximum resolution is 3840 x 1080 and I would like to have a resolution of 5120 x 1440 but I can't add this resolution.

I use the HDMI of a laptop HP Elitebook with an Intel UHD 620 graphic card but I don't know what generation it is so I don't know what part of the documentation I should follow.
I tried adding an extension block but it didn't work. I've also tried exporting an .exe but that doesn't work neither.

I only use my external screen, I don't use the laptop screen.

The UHD 620 does not support HDMI 2.0, so it's limited to 300 MHz pixel clock.

What is the correlation between the pixel clock and the resolution?
Does it means that I can't have a resolution of 5120 x 1440?

[someone]

(01-05-2024 09:48 AM)WJUI Wrote:  Unfortunately my second monitor is no longer detected by my PC.

I used CRU to make a custom resolution for my 24" side monitor to go with my 27" main monitor for sim racing. I then set the 1080p monitor to go to 2343x1152 or so, so that I could use my 27" monitor at 1440p instead of 1080p. It worked, I played my game. Didn't know if the resolution was actually working correctly so was gonna go back and test it with other resolutions.

Then when I tried to get back on again it just showed a black screen on the side monitor. Soon after the monitor disappeared from my PC display settings, and detecting yields nothing.

To try to fix it, I used reset.all, restart.exe, restarted my computer. I pressed delete on the CRU UI because I heard that was a way to reset the settings for the monitor, now the monitor isn't on CRU anymore (before it was still on there with a * even though it wasn't detected by PC anymore).

I'm using an HDMI 2.1, Never had a problem before--I just plug it in and the monitor works right away. Didn't do anything except use CRU. (Mentioning because people were saying it's probably the HDMI cable, an issue with the monitor, etc.)

I searched for this and found a few discussions but no concrete solutions. Anybody know what to do?

I guess the GPU had an issue when making the 1080p monitor run at the weird and above-max resolution, but beyond that I don't know what it is or what to do to fix it. Isa clean install of graphics card drivers likely to fix it? Unfortunately I'm confused on how exactly to do that in my short time researching it so far

Edit: I have an Intel Arc a750 in the PC

You can't permanently downscale in Intel with higher-resolution PCs. You could have tried with setting Display1_DownScalingSupported to 1 (If you want to know where is it, I'll tell you) but I'm not sure if with higher-resolution PCs it even has an effect in making downscaled resolutions work. Intel's stance is that they don't support downscaled resolutions.

---

(01-03-2024 08:02 PM)ToastyX Wrote:  

(01-03-2024 07:22 PM)someone Wrote:  I have already mentioned a key called DALNonStandardModesBCD1. It's a REG_BINARY key. Are you referring to that one? without vsr only resolutions with a lower width/height/both than the native can be added though (I added 1152x768 and the process was successful but in 1280x800's case it wasn't added)

No, SRE already uses DALNonStandardModes. I'm talking about custom resolutions in AMD's control panel.

But you mentioned finding the custom resolution in the registry. You can create them with DALNonStandardModes, just limited to higher resolutions.

[ToastyX]

(01-05-2024 04:31 PM)someone Wrote:  But you mentioned finding the custom resolution in the registry. You can create them with DALNonStandardModes, just limited to higher resolutions.

DALNonStandardModes is not the same as custom resolutions in the control panel.

[ToastyX]

(01-05-2024 03:40 PM)Bibimbap Wrote:  What is the correlation between the pixel clock and the resolution?
Does it means that I can't have a resolution of 5120 x 1440?

Pixel clock is the total number of pixels per second: horizontal total * vertical total * refresh rate

5120x1440 is possible at 30 Hz, but HDMI 1.4 only officially supports up to 4096x2160, so the graphics driver or the monitor might not allow it.

[someone]

(01-05-2024 04:41 PM)ToastyX Wrote:  

(01-05-2024 04:31 PM)someone Wrote:  But you mentioned finding the custom resolution in the registry. You can create them with DALNonStandardModes, just limited to higher resolutions.

DALNonStandardModes is not the same as custom resolutions in the control panel.

So the registry key that defines custom resolutions in the control panel is different? I tried to open CCC and I had to uninstall it because it didn't open (Windows 11 doesn't support Catalyst but when I had Windows 10 it worked the first time and afterwards it couldn't open)

[Bibimbap]

(01-05-2024 04:41 PM)ToastyX Wrote:  

(01-05-2024 03:40 PM)Bibimbap Wrote:  What is the correlation between the pixel clock and the resolution?
Does it means that I can't have a resolution of 5120 x 1440?

Pixel clock is the total number of pixels per second: horizontal total * vertical total * refresh rate

5120x1440 is possible at 30 Hz, but HDMI 1.4 only officially supports up to 4096x2160, so the graphics driver or the monitor might not allow it.

Thank you for this explanation.
So if I understand correctly, I can't have a resolution of 5120x1440 because of the HDMI 1.4 standard but not because of the pixel clock because there is less pixels with 5120x1440 (7.3M) than with 4096x2160 (8.8M).
Am I right?

[ToastyX]

(01-05-2024 08:01 PM)Bibimbap Wrote:  Thank you for this explanation.
So if I understand correctly, I can't have a resolution of 5120x1440 because of the HDMI 1.4 standard but not because of the pixel clock because there is less pixels with 5120x1440 (7.3M) than with 4096x2160 (8.8M).
Am I right?

No, both are separate limitations. HDMI 1.4 officially supports 3840x2160 @ 30 Hz and 4096x2160 @ 24 Hz. The driver might allow 5120x1440 @ 30 Hz since it's within the pixel clock limit, but the monitor might not be able to display it because of scaler limitations. You'll have to try it and see. 5120x1440 @ 60 Hz wouldn't be possible without both the monitor and GPU supporting HDMI 2.0.