Custom Resolution Utility (CRU)

[Harters]

Hi Guys. Firstly I am glad I found this forum and tool. I almost achieved my goal and so hoping by a post here i'll get across the line. (and yes I will happily become a patron).

So, my set up is a Lenovo 64 bit machine running win10. The display adapter is an Intel UHD Graphics 620. Connected to the laptop via a usb-c port is a Dell DisplayLink 6000 which in turn is connected via HDMI to 2 JVC LT-24 monitors. I downloaded the displaylink drivers and all has been great for the last 3 months

Then yesterday the left monitor for some reason, half way through the day, decided it was only using 640x480. As there is no possibility to change this in standard windows display settings as its all greyed out i went on an internet discovery. I realised my issue is likely the EDID file. I found a couple of sites what offer tools for this but after the first two got too complex i gave up with them and found this site. Yay - i managed to make a small bit of progress as follows.

I unzip the CRU files and ran the CRU.exe I found as before i have 3 entries active. 2 for the monitors and one for the laptop screen. So firstly i exported each. I then opened the one for the good monitor , hit copy, then opened the bad monitor and hit paste. I then ran the restart.exe (wasn't sure if I should have used the restart64.exe) then tried to make changes in display settings as apart from a lot of flickering screens for 10 seconds nothing else changed. I kept trying but nothing works. I did manage to prove to myself the CRU tool is working as I changed the bad monitor description from "No Monitor" to be "Left Screen" and i do see this in Display Settings now.

I also saw that i do now have an EDID override entry in the registry (local/system/current control set/enum/display) sitting next to the Device Parameters key.

I read somewhere deleting the entries and rebooting might help but i was not able to delete the keys or entries.

Is there a way to export the EDID file (this seems easy using the CRU), saving it to my laptop and then flasing it up to the bad monitor as apart from the serial number both screens are identical other than one is stuck on low res.

Edit: So firstly afgter playing some more i find both screens are now stuck in low res. However, if I connect the monitor directly to the laptop using HDMI then the issue disappears. So does this suggest the EDID file on the monitor is in fact fine and the problem is with the dell d6000? I downloaded the dell firmware update utility and update the d6000 successfully but no change. I read that there is something called AMD Catalyst where you can force a resolution - of course I am on Intel so dont have this feature i assume. Until I can find a fix I guess I have to just use 1 monitor instead of two as i need to d6000 to connect the second monitor. Thanks for any advice in advance (and of course i will thanks you as a patron)

[aeneas1]

awesome! will give it a try tonight! and, as usual, thanks very much for your help, your fantastic software, and your incredible support!

(03-10-2020 01:42 AM)ToastyX Wrote:  

(03-09-2020 08:23 AM)aeneas1 Wrote:  the reg_multi_sz code is:

{*}S 720x480x8,16,32,64=1; 720x576x8,16,32,64=8032;SHV 1280x720x8,16,32,64 1680x1050x8,16,32,64 1920x1080x8,16,32,64 2048x1536x8,16,32,64=1; 1920x1440x8,16,32,64=1F; 640x480x8,16,32,64 800x600x8,16,32,64 1024x768x8,16,32,64=1FFF; 1920x1200x8,16,32,64=3F; 1600x900x8,16,32,64=3FF; 2560x1440x8,16,32,64 2560x1600x8,16,32,64=7B; 1600x1024x8,16,32,64 1600x1200x8,16,32,64=7F;
1280x768x8,16,32,64 1280x800x8,16,32,64 1280x960x8,16,32,64 1280x1024x8,16,32,64 1360x768x8,16,32,64 1366x768x8,16,32,64=7FF; 1152x864x8,16,32,64=FFF;

thanks again for all of your help!

You want this one: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000

Just add it like the other resolutions: 1920x817x8,16,32,64

Each line ends with a refresh rate mask. I don't know what the individual bits are, but you should be able to put =1FFF; to cover all refresh rates.

[aeneas1]

update - added my custom resolution to the key you suggested, in the following location, and everything seems to be working perfectly! thanks!

(03-10-2020 01:42 AM)ToastyX Wrote:  

(03-09-2020 08:23 AM)aeneas1 Wrote:  the reg_multi_sz code is:

{*}S 720x480x8,16,32,64=1; 720x576x8,16,32,64=8032;SHV 1280x720x8,16,32,64 1680x1050x8,16,32,64 1920x1080x8,16,32,64 1920x817x8,16,32,64 2048x1536x8,16,32,64=1; 1920x1440x8,16,32,64=1F; 640x480x8,16,32,64 800x600x8,16,32,64 1024x768x8,16,32,64=1FFF; 1920x1200x8,16,32,64=3F; 1600x900x8,16,32,64=3FF; 2560x1440x8,16,32,64 2560x1600x8,16,32,64=7B; 1600x1024x8,16,32,64 1600x1200x8,16,32,64=7F;
1280x768x8,16,32,64 1280x800x8,16,32,64 1280x960x8,16,32,64 1280x1024x8,16,32,64 1360x768x8,16,32,64 1366x768x8,16,32,64=7FF; 1152x864x8,16,32,64=FFF;

thanks again for all of your help!

You want this one: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000

Just add it like the other resolutions: 1920x817x8,16,32,64

Each line ends with a refresh rate mask. I don't know what the individual bits are, but you should be able to put =1FFF; to cover all refresh rates.

[ToastyX]

(03-10-2020 03:36 AM)2000Arsen Wrote:  Hello, I have some problem with latest AMD drivers since I updated to Adrenalin 2020 Edition drivers from previous 2019 Edition drivers. Problem is that when I change something with CRU and then when I either turn monitor off and then on (manually or through windows) or enter sleep mode and then resume working, screen became fading, like there some dark filter on screen. It return to normal if I change resolution or refresh rate or turn off/on gpu scaling in driver settings. This problem occur with all Adrenalin 2020 Edition drivers, but previous 2019 Edition drivers works fine.
As I wrote before, it didn't matter what I change via CRU, problem occur only when I change something. But I'll write what I ussally change, just in case. I delete all resolution that above monitors's own (2560x1080) and I change Freesync range from 40-75 to 25-75.
My monitor is LG UltraWide 29WK600-W connected via HDMI, GPU is AMD Radeon RX 580, CPU is AMD Ryzen 7 3700X, Motherboard is MSI X570-A PRO.
P.S. I think I made a lot of mistakes in the text, but English isn't my native language so I hope you'll forgive me for this.

Sounds like an HDR bug in the driver. If you don't need HDR, try turning off HDR in the Windows display settings. If that doesn't help, try deleting any HDR metadata blocks in the extension block.

[2000Arsen]

(03-11-2020 11:43 PM)ToastyX Wrote:  

(03-10-2020 03:36 AM)2000Arsen Wrote:  Hello, I have some problem with latest AMD drivers since I updated to Adrenalin 2020 Edition drivers from previous 2019 Edition drivers. Problem is that when I change something with CRU and then when I either turn monitor off and then on (manually or through windows) or enter sleep mode and then resume working, screen became fading, like there some dark filter on screen. It return to normal if I change resolution or refresh rate or turn off/on gpu scaling in driver settings. This problem occur with all Adrenalin 2020 Edition drivers, but previous 2019 Edition drivers works fine.
As I wrote before, it didn't matter what I change via CRU, problem occur only when I change something. But I'll write what I ussally change, just in case. I delete all resolution that above monitors's own (2560x1080) and I change Freesync range from 40-75 to 25-75.
My monitor is LG UltraWide 29WK600-W connected via HDMI, GPU is AMD Radeon RX 580, CPU is AMD Ryzen 7 3700X, Motherboard is MSI X570-A PRO.
P.S. I think I made a lot of mistakes in the text, but English isn't my native language so I hope you'll forgive me for this.

Sounds like an HDR bug in the driver. If you don't need HDR, try turning off HDR in the Windows display settings. If that doesn't help, try deleting any HDR metadata blocks in the extension block.

HDR already turned off in Windows display settings and I just tried to delete HDR metadata block and it didn't help.
As far as I noticed this problem occur when I changed something, no matter what exactly so it happend when there is override and since it's occur only with new drivers, I think the source of problem is driver, but I tried different driver settings and none of them solve this problem.

[ToastyX]

(03-12-2020 02:51 AM)2000Arsen Wrote:  HDR already turned off in Windows display settings and I just tried to delete HDR metadata block and it didn't help.
As far as I noticed this problem occur when I changed something, no matter what exactly so it happend when there is override and since it's occur only with new drivers, I think the source of problem is driver, but I tried different driver settings and none of them solve this problem.

I can't think of anything else that would dim the screen other than Vari-Bright, which is only on laptops. Maybe changing the pixel format would help. The behavior might be different between RGB and YCbCr.

[2000Arsen]

(03-13-2020 12:57 AM)ToastyX Wrote:  

(03-12-2020 02:51 AM)2000Arsen Wrote:  HDR already turned off in Windows display settings and I just tried to delete HDR metadata block and it didn't help.
As far as I noticed this problem occur when I changed something, no matter what exactly so it happend when there is override and since it's occur only with new drivers, I think the source of problem is driver, but I tried different driver settings and none of them solve this problem.

I can't think of anything else that would dim the screen other than Vari-Bright, which is only on laptops. Maybe changing the pixel format would help. The behavior might be different between RGB and YCbCr.

Well in driver settings (both old and new drivers) there only limited and full RGB pixel formats avaliable. No YCbCr, yet I can see in CRU that in HDMI support block there are YCbCr color formats: YCbCr 4:2:2, YCbCr 4:4:4, YCbCr 4:4:4 deep color.

[oali24]

Hello, I'm having an issue with custom resolution utility, when I add a mode of 1600x1200 @144 hertz interlaced on my desktop it doesn't show up in the display adapter properties, it worked fine at 75 hertz progressive and it showed up and I know it works with my monitor because it worked with my laptop, I am using an AMD 5700xt through a vga to display port adapter with driver version 20.2.2 is there something I can do?

[ToastyX]

(03-14-2020 06:43 AM)oali24 Wrote:  Hello, I'm having an issue with custom resolution utility, when I add a mode of 1600x1200 @144 hertz interlaced on my desktop it doesn't show up in the display adapter properties, it worked fine at 75 hertz progressive and it showed up and I know it works with my monitor because it worked with my laptop, I am using an AMD 5700xt through a vga to display port adapter with driver version 20.2.2 is there something I can do?

The driver might not support interlaced resolutions with DisplayPort adapters.

[joevt]

(03-14-2020 06:43 AM)oali24 Wrote:  Hello, I'm having an issue with custom resolution utility, when I add a mode of 1600x1200 @144 hertz interlaced on my desktop it doesn't show up in the display adapter properties, it worked fine at 75 hertz progressive and it showed up and I know it works with my monitor because it worked with my laptop, I am using an AMD 5700xt through a vga to display port adapter with driver version 20.2.2 is there something I can do?

Can you post the modified EDID hex or binary so we can see if the interlaced mode is added correctly?