Custom Resolution Utility (CRU)

[to2005to]

Hi Folks,

I have a 2018 Vizio P-55 TV that I am connecting to my PC with an Nvidia GPU via a 25ft HDMI 2.1 18GBps cable from monoprice. I know the cable run is long and in my case I can't get 4K60 with HDR working. (It works fine with a shorter cable). The TV displays fine in SDR 10bit RGB. The Vizio has the option to turn "Full UHD Color" on or off which enables/disables HDMI 2.0b

I want to use CRU to see if I can force 4k60 HDR using 8bit sampling, or a pixel clock/data rate that is less demanding, hopefully allowing me to keep my PC where it is and use the 25ft monoprice cable. Before I start messing around with settings I was looking for advice on what options to set. Any help would be hugely appreciated!

[AnatolM]

Hello,

I've got HP Laptop Amd A6-9225 with Radeon R4. It works perfectly with external monitor NecPa301W 2560x1600@60 ( https://www.sharpnecdisplays.us/products.../pa301w-bk ) native resolution connected from HDMI to DVI. Some days ago I've bought new Asus Tuf A15 with Ryzen 7 4800H with Radeon Graphics, but it can't set 2560x1600 resolution with same connection, only 1920x1200@60. I'm trying fix that problem by Cru, amd patch drivers, Radeon custom resolution, different drivers from Asus and Amd - but nothing( Only 2560x1600@40 I can get. Looks like driver has limit for G.Pixel Clock to 165000, and any trying set it even 165050 — result in an error. Any chance to fix that? https://disk.yandex.ru/i/kqA88jUQFtDXSg https://disk.yandex.ru/i/qYK2Xyw-fcG6uA https://disk.yandex.ru/i/bN6vb7aR9aPxQw https://disk.yandex.ru/d/X3e0JPVI0wY-aw

[ToastyX]

(06-19-2021 07:09 PM)AnatolM Wrote:  I've got HP Laptop Amd A6-9225 with Radeon R4. It works perfectly with external monitor NecPa301W 2560x1600@60 ( https://www.sharpnecdisplays.us/products.../pa301w-bk ) native resolution connected from HDMI to DVI. Some days ago I've bought new Asus Tuf A15 with Ryzen 7 4800H with Radeon Graphics, but it can't set 2560x1600 resolution with same connection, only 1920x1200@60. I'm trying fix that problem by Cru, amd patch drivers, Radeon custom resolution, different drivers from Asus and Amd - but nothing( Only 2560x1600@40 I can get. Looks like driver has limit for G.Pixel Clock to 165000, and any trying set it even 165050 — result in an error. Any chance to fix that? https://disk.yandex.ru/i/kqA88jUQFtDXSg https://disk.yandex.ru/i/qYK2Xyw-fcG6uA https://disk.yandex.ru/i/bN6vb7aR9aPxQw https://disk.yandex.ru/d/X3e0JPVI0wY-aw

What exactly did you try with CRU? Did you try adding an HDMI data block? Try using a USB-C to DisplayPort cable instead.

[ToastyX]

(06-18-2021 03:23 PM)xernify Wrote:  I was using CRU, i then reset everything. I deleted all detailed resolutions, standard, extension blocks, and established resolutions. I rebooted and now I get a black screen after boot, the only thing that ever shows is the gigabyte logo and the spinny loading signal, and then it says “Out of Range”. I tried restarting 3-4 times to bring up the troubleshooting, but it was still “out of range”. I can bring up the BIOS. Please help

Why did you delete everything? You need to boot into safe mode and run reset-all.exe. Try methods 2, 3, 4 to get into safe mode: https://www.digitalcitizen.life/4-ways-b...indows-10/

[AnatolM]

(06-19-2021 08:33 PM)ToastyX Wrote:  What exactly did you try with CRU? Did you try adding an HDMI data block? Try using a USB-C to DisplayPort cable instead.

I've try with CRU all presets for native resolution 2560x1600@60-40 (before and after patch the driver), set different blocks with import hdmi2 and hdmi data and turning on Support Dual-Link DVI, add native resolution to Detailed Resolution, try all Types of Extension Block. Repeat - A6 - is working fine with same setting sand same cable and same connector HDMI-DVI-D. I don't have cable USB-C to DP, of course sure it'll be works fine, but need time for delivery it from Aliexpress and extra money for it. But as I said - the old A6 works fine with this connection.

[nihaomiao]

Using CRU disabled freesync in the AMD driver saying "it's not supported".

All I did was:

Enable GPU scaling (needed it for something)
Notice windows removes the 75hz setting then which is the max my monitor supports.
Used CRU to simply add it back.
AMD driver disabled freesync.

Asus VG245
5700 XT

[pj-2020]

Hi, ToastyX!
Can you advise what makes custom resolution not to set right after OS boot?
Anything that cause display mode change, such as turn on/off GPU scaling, or restart64.exe, etc - do apply them anyway.
The screens below were made

after driver restart (left), and right after boot (right)

Full res pics here (https://ibb.co/album/M9Rzkz)

[andrewk36]

Hey ToastyX!

I am having an issue using CRU with a displayport dummy plug. I cloned the EDID via the "copy" button for my LG C9 tv, and used the "paste" button to override the dummy plug EDID, but it doesn't appear to have any effect at all, even after restarting the driver and the computer. When I relaunch CRU, I see that the dummy plug shows up as having all the same EDID settings as the LG TV, but windows and nvidia control panel seem to treat it the exact same, with resolutions like 4k being locked to the dummy plug's original 17Hz, and even 1080p being locked to 30Hz. Is there some reason these features can't be overridden related to the nature of dummy plugs? I would assume you can set the windows registry to get the GPU to behave however I'd want since there should be no physical constraints to drive an actual monitor.

[Omiyaru]

apologize in advance for the double post

So i have come up with an issue , i don't know if it can be resolved with CRU or not , but my laptop (hp spectre df-100 whenever i Enable the nvidia gpu it automatically disables the Integrated intel gpu and I cant seem to get them "both active" and
i cant permanently disable the intel without it defaulting to to the basic display adpter
so I'm trying to revert the edid of the intel uhd630 gpu to its basic throwing a "this graphics card is not supported" this could be due to EDID corruption like the edid getting corrupted with the override ) (I have refreshed my computer and reformatted my drive with no success

if so could someone provide the spectre x360 4k monitor edid or something to at least compare to?
ive tried everything to even resetting my laptop and even that didn't fix the Error

i m just looking at possibilities of what could be wrong.. and how to fix it enabling the nvidia graphics "disables" the Intel gpu capabilities (and i dont have access to the extended capabilities of the nvidia gpu unless a external monitor is connected

this is a last ditch attempt to fix it before i have to send it in so help would be appreciated

(sorry about previous post chose the wrong image to attached) there is no monitor        

[uncleshady]

So I havent had to use this CRU software since my Vega64. I've got an RX6800 now and things were going fine then the latest Radeon update killed my secondary monitor which is a Qnix DVI only korean special. Got the old White, Red, Blue screen on boot. Almost bought a new DVI to DP or HDMI cable when I looked at the resolution settings for the monitor and it was being seen as 640x800 or whatever and that was the only resolution available. FFW to installing CRU and force setting the Qnix to default 1440p settings and after a hung reboot, I'm back in business. Thanks CRU devs!