Custom Resolution Utility (CRU)

[ToastyX]

(09-13-2023 09:55 AM)bobo Wrote:  Hi toasty is there a table or something for the established resolutions (their timing and other stuff)?
I want to convert a one to a detailed resolution.

You can use "Automatic CRT" timing to get the established timing parameters for those specific resolutions. The timing is documented in the DMT standard available here: https://app.box.com/s/vcocw3z73ta09txisk...1133572986

[ToastyX]

(09-12-2023 01:14 PM)jcmkjs Wrote:  Hello!

I'm having trouble with my LG monitor resolution since august 24th. The best fit resolution (2560x1080) is not available, I've tried everything from updating drivers to formatting Windows.

Using CRU, I can't write the desired values when adding a new standard resolution. I've tried using extension blocks such as CTA-861 (TV resolutions) but still can't add the resolution I need.

I'm using HDMI with no adapter. Tried HMDI 2.0 as well.

Can someone please help? I think I'm using the wrong extension block or in the wrong way.

I'm using a Dell 11th Gen Intel® Core™ i7-1165G7 @ 2.80GHz 2.80 GHz (Windows 11) with NVIDIA GeForce MX330 and Intel Iris Xe Graphics. My monitor is a LG 29LW500-B.

Thanks!

CRU is not for adding resolutions that should already be available. The monitor already defines the correct resolutions, so there's no point in adding the same resolutions again. If the native resolution isn't available, there's a reason for it, usually a pixel clock limit, but that shouldn't be the case here. This sounds like an Intel driver bug to me because someone else reported a similar issue with the Iris Xe, so maybe an older driver would work. You should ask Intel support about this. The only thing I can think of is if the monitor has an HDMI 2.x data block, delete it because it's not necessary for that resolution. You only need the regular HDMI data block. Don't add any resolutions or change anything else.

[itsyaboitsune]

Hi!

Is there a way I can set my resolution in a way that I fully utilize the top part of my monitor but not use the bottom part?

Thanks!

[jcmkjs]

(09-14-2023 01:59 AM)ToastyX Wrote:  

(09-12-2023 01:14 PM)jcmkjs Wrote:  Hello!

I'm having trouble with my LG monitor resolution since august 24th. The best fit resolution (2560x1080) is not available, I've tried everything from updating drivers to formatting Windows.

Using CRU, I can't write the desired values when adding a new standard resolution. I've tried using extension blocks such as CTA-861 (TV resolutions) but still can't add the resolution I need.

I'm using HDMI with no adapter. Tried HMDI 2.0 as well.

Can someone please help? I think I'm using the wrong extension block or in the wrong way.

I'm using a Dell 11th Gen Intel® Core™ i7-1165G7 @ 2.80GHz 2.80 GHz (Windows 11) with NVIDIA GeForce MX330 and Intel Iris Xe Graphics. My monitor is a LG 29LW500-B.

Thanks!

CRU is not for adding resolutions that should already be available. The monitor already defines the correct resolutions, so there's no point in adding the same resolutions again. If the native resolution isn't available, there's a reason for it, usually a pixel clock limit, but that shouldn't be the case here. This sounds like an Intel driver bug to me because someone else reported a similar issue with the Iris Xe, so maybe an older driver would work. You should ask Intel support about this. The only thing I can think of is if the monitor has an HDMI 2.x data block, delete it because it's not necessary for that resolution. You only need the regular HDMI data block. Don't add any resolutions or change anything else.

Thank you so much ToastyX, I wasn't able to get any help 'till you gave me this hints. I've tried installing a very old version of the Iris Xe driver and it worked!

Again thank you for your help!

[ToastyX]

(09-14-2023 11:52 AM)itsyaboitsune Wrote:  Is there a way I can set my resolution in a way that I fully utilize the top part of my monitor but not use the bottom part?

No.

[Espionage724]

I have Intel UHD 630 on a laptop (single GPU), and an Acer S271HL monitor connected via HDMI. On Windows 10 21H2 if I create an Automatic resolution of 1080p (native res) at 75Hz, after a while while suspended or seemingly on wake-up the monitor disconnects and comes back at 60Hz.

https://i.imgur.com/Qp7KfHa.png

The only thing I've done in CRU is open it, add an Automatic PC resolution, changed the refresh rate, and set the new 75Hz resolution above the 60Hz one.

[AntiGod]

[EDIT] - I was just able to successfully remove the DCI 4K resolution by first switching my display resolution to 1280x720p/60Hz before resetting the graphics driver.

I have an LG C1 and was previous connecting my 3080GPU directly to the TV. I had no issues removing 4096 resolutions or doing any other common task with CRU.

Recently I am running my PC through an Denon X3800H 40gbps AVR. Now that CRU recognizes the Denon AVR as my "display" and doesn't directly see the LG C1 EDID at all, I can not seem to do this without losing signal completely until I reset back to default.

I can't figure out what I need to do to successfully remove the 4096 resolutions. I am forced to use Display scaling now rather than GPU scaling, because my Windows Active resolution is stuck at 4096x2160 even when the Display Resolution is set to 3840x2160. This results in 3840 Display res being letterboxed like 4096 should be, and 4096 res fills the screen (obviously not correctly scaled). This is with GPU scaling/No scaling.

Display scaling/No scaling scales properly, but not GPU. It's hard to troubleshoot this because besides the additional variables in the chain, so few people have HDMI 2.1 receivers with PCs attached I can't find any info about is. I need to either force Windows 11 to set the correct Active resolution or remove 4096 as an option altogether but am coming up empty.

[ToastyX]

(09-15-2023 09:25 PM)AntiGod Wrote:  [EDIT] - I was just able to successfully remove the DCI 4K resolution by first switching my display resolution to 1080p/60Hz before resetting the graphics driver. Probably just switching to 3840p/60Hz would have been sufficient. I don't think I had to do this previously.

I have an LG C1 and was previous connecting my 3080GPU directly to the TV. I had no issues removing 4096 resolutions or doing any other common task with CRU.

Recently I am running my PC through an Denon X3800H 40gbps AVR. Now that CRU recognizes the Denon AVR as my "display" and doesn't directly see the LG C1 EDID at all, I can not seem to do this without losing signal completely until I reset back to default.

Did you only lose signal or did the graphics driver crash the system?

[ToastyX]

(09-15-2023 10:42 AM)Espionage724 Wrote:  I have Intel UHD 630 on a laptop (single GPU), and an Acer S271HL monitor connected via HDMI. On Windows 10 21H2 if I create an Automatic resolution of 1080p (native res) at 75Hz, after a while while suspended or seemingly on wake-up the monitor disconnects and comes back at 60Hz.

https://i.imgur.com/Qp7KfHa.png

The only thing I've done in CRU is open it, add an Automatic PC resolution, changed the refresh rate, and set the new 75Hz resolution above the 60Hz one.

This is an Intel graphics driver bug that you should report to them. Running restart.exe manually after waking should get back the correct resolution.

[sofakng]

I've just purchased an HDMI dummy plug and a DisplayPort dummy plug.

However, when I copy the EDID from my monitor (3440x1440@160) both plugs refuse to show that resolution even though it's the exact same EDID.

I think the dummy plugs only contain a simple I2C EEPROM so is there something else that is needed for the GPU to allow these higher resolutions?

I've also attached the EDID if that helps?

EDIT: I've also run restart-all.exe, reset64.exe, rebooted, etc. They all seem to work but these higher resolutions don't show up. I've also tried adding my macOS resolutions (3456x2160@120) but it refuses to show up as well.