Monitor Tests Forum

Hi Toasty,

Thanks for making this program. I am yet another user plagued by the 27GR95QE-B LG 27in OLED 240 Hz monitor locking me into 4k @ 120Hz. I tried deleting the TV resolutions that are 4k, but when I tab out and back into my fullscreen game it reverts back to 4k @ 120. Any idea why its able to do that? Am I missing a step? Does it matter that multiple monitors are plugged in right now?

Thanks again,
Skip

(04-04-2023 06:17 PM)skipshot Wrote: [ -> ]Thanks for making this program. I am yet another user plagued by the 27GR95QE-B LG 27in OLED 240 Hz monitor locking me into 4k @ 120Hz. I tried deleting the TV resolutions that are 4k, but when I tab out and back into my fullscreen game it reverts back to 4k @ 120. Any idea why its able to do that? Am I missing a step? Does it matter that multiple monitors are plugged in right now?

Then you didn't delete all the 4K resolutions.

(04-04-2023 06:07 PM)BuciodeCulo Wrote: [ -> ]i would like to use a tv as monitor the screen is too big can i do this with CRU? I would like the full screen to be just a part of the screen shifted to the bottom left
https://i.imgur.com/iMVQ09M.jpeg

No, CRU doesn't deal with scaling or positioning. That's up to the GPU or monitor, which normally only offer centering.

(04-03-2023 02:16 AM)ToastyX Wrote: [ -> ]

(03-30-2023 04:55 AM)Mussels Wrote: [ -> ]* Some combinations allow 10 bit colour while others don't - is there any way to know what the limit is there? Does it just need X bandwidth spare?

That would depend on the bandwidth available. Pixel clock limit would be <pixel clock limit> * 8 / <bpc>, so like DisplayPort HBR2 would be 720 MHz * 8 / 10 bpc = 576 MHz, and HDMI 2.0 would be 600 MHz * 8 / 10 = 480 MHz. You might need to go a few MHz lower with NVIDIA for some reason. If that doesn't work, then it's purely a driver or GPU limitation.

(03-30-2023 04:55 AM)Mussels Wrote: [ -> ]1. Is there any recommended settings to adjust like the horizontal rate in the Gsync/Vsync settings? - i've seen no guides mention this, other than one standalone post from ToastyX to state keeping it at a static value

Horizontal rate in the range limits doesn't matter and isn't used for anything as far as I know. Variable refresh rate uses the maximum refresh rate's timing parameters as the base.

(03-30-2023 04:55 AM)Mussels Wrote: [ -> ]2. Is that tearing me putting the wrong porch/sync width settings in, or is that just the limit of the display? I've tried the different preset profiles and some random adjustments, but no luck improving that.

Tearing example:
https://imgur.com/a/A3oD2Px (it moves up and down depending on screen content/brightness)

Edit: Okay this ones dumb yet weird. It was Fast vsync being enabled, despite the game being DX12 causing the flicker. I reset all monitor settings to default and the problem still existed, leading to finding out that fast vsync was the issue somehow. Go figure?

That's weird. I would have thought that was a monitor limitation. That sounds like a driver bug.

Thanks, that math is beyond my abilities, but gave me guidelines to work within

I assume it's because the game can run DX11 or DX12, it's accidentally forced a DX11 only setting onto the game, when enabled.

Is it worth expanding the porch settings/blanking if i cant do large steps?
Is there a math behind it to make it only useful in certain combinations, or just go as high as it allows?

(04-06-2023 12:26 PM)Mussels Wrote: [ -> ]Thanks, that math is beyond my abilities, but gave me guidelines to work within

I assume it's because the game can run DX11 or DX12, it's accidentally forced a DX11 only setting onto the game, when enabled.

Is it worth expanding the porch settings/blanking if i cant do large steps?
Is there a math behind it to make it only useful in certain combinations, or just go as high as it allows?

You shouldn't need to increase the blanking. That would use more bandwidth. Horizontal values are usually a multiple of 8, but there's no technical restriction from using any combination of values. None of this should affect the bit depth or fast sync, so this seems like something GPU-specific.

(04-06-2023 11:55 PM)ToastyX Wrote: [ -> ]

(04-06-2023 12:26 PM)Mussels Wrote: [ -> ]Thanks, that math is beyond my abilities, but gave me guidelines to work within

I assume it's because the game can run DX11 or DX12, it's accidentally forced a DX11 only setting onto the game, when enabled.

Is it worth expanding the porch settings/blanking if i cant do large steps?
Is there a math behind it to make it only useful in certain combinations, or just go as high as it allows?

You shouldn't need to increase the blanking. That would use more bandwidth. Horizontal values are usually a multiple of 8, but there's no technical restriction from using any combination of values. None of this should affect the bit depth or fast sync, so this seems like something GPU-specific.

Sorry, Working on two seperate issues there
Being VA panels they have some smearing and while i can use CVT-RB2 and get 10 bit, i notice more of that black smearing - so i'm working on the various options to see what works best.
I was trying to figure out the highest bandwidth that gave me 10 bit without just raising values in increments, but also didnt want to waste time if i raised the wrong value or the display tech simply doesnt work that way.

I'm exploring what the display(s) can do, so i can pick the one that works best for me overall - They have amazing 2D quality, but the default settings had extremely bad smearing of black and magenta, and Gsync flicker.
Magenta smearing was only fixed with the colour profile of the LG display (worked on all my VA panels in the house, fantastic help there), black was fixed by lowering displays contrast setting (this also removes a flicker issue on the LG, but none of the others)

Gsync was just by reducing the range, but when games like borderlands have all in-game cutscenes at 30FPS boosting to 60Hz was damned helpful on the eyes, even in a small 50-65 range.

70Hz no Gsync had frameskips, so that was out.

65Hz 10 bit Gsync works great, with a 63FPS cap and a 50-63 range it's working well except light flicker in load screens - but certain things like the black outlines in borderlands seems to struggle with trails at times (when the display is cold, seems part of it) hence wondering if i should ditch 10 bit and increase the blanking, but i'm unsure which values to increase - front, back, total, as high as it goes or specific values, etc.

[attachment=1159]

As an example i tried raising that 67 by 2x (worked, lost 10 bit) and 3x (no image)

Edit:
Sigh, noticed Gsync was stuck at 63Hz instead of 65. Discovered an un-deleteable Nvidia custom resolutions that i'd used for testing were stuck and some games/titles chose those, over the higher resolution default for no reason. I hate when bugs screw with testing and make it need to all be re-done. Found them in regedit, deleted, now i get to re-test.

(04-03-2023 02:16 AM)ToastyX Wrote: [ -> ]

(03-28-2023 01:56 PM)sebastian.f Wrote: [ -> ]

(03-28-2023 09:53 AM)ToastyX Wrote: [ -> ]That's not the full EDID. The extension blocks are missing. Does CRU not show the extension blocks?

no the field is empty :-(

So then what did you try? For HDMI 2.0, you need to make sure the HDMI and HDMI 2.x data blocks exist in a CTA-861 extension block, and for HDMI 2.1, you need to make sure the FRL rate is set in the HDMI 2.x data block. Without the FRL rate, you'll be limited to 600 MHz pixel clock.

Can you edit my file and upload it again?
When anyone get a solution for the problem i spent him a tip in paypal! :-)

(03-17-2023 08:24 PM)ToastyX Wrote: [ -> ]

(03-17-2023 06:51 PM)pakos2835 Wrote: [ -> ]someone understand what config must use in cru for 75hz for hp e190i.
as i read internet info, this is standard freq for this model. but i havnt 75hz in os

That's a 60 Hz monitor.

hmm. i see youtube review and online seller's data. there are 75 hz.
ok i set up 75 hz manually.
i copy data from default cru monitor 60 hz profile to new 75 hz profile and now its work at 75 hz.

Hello. I have 4k 240 hz monitor. In nvcp and windows setting i have only 120 and 240 hz settings but i want to use 165 hz.

So i tried to use CRU, add 4k@165hz through extension blocks+ displayid 1.3/2.0. I can add 165hz4k via CRU but no matter what i do i dont see those options at nvcp and windows display settings. I did use all the restarting software it came along.
When i reopen CRU i can see my custom refresh rate resolutions at the extension block.

What to do? Thanks for the help.

Also idk if its important, when i first open CRU it shows 2 default extension block.

i am trying to get stretched res but whenever i restart to changed res i get some weird like mirror effect of my mouse in the middle of my monitor, i dont really know how else to describe it. I have watched videos how to properly do it and the same thing happens every time. if you have any idea what this is and how i can possible fix it pls lmk.
here is what is looks like.
sorry if u gotta download the video idk how else to do it since the file is too big

https://cdn.discordapp.com/attachments/9...G_4818.jpg

https://cdn.discordapp.com/attachments/9...titled.mov