Monitor Tests Forum

Ola, with CRU I got 4k144hz working via my AVR using DSC. But as soon as I change to 10bit on NVCP I get a black screen. Could you help me figure out what is missing in my settings so I can get 10bit to work?

(02-03-2025 05:48 AM)ToastyX Wrote: [ -> ]

(02-02-2025 09:54 AM)ArtMov Wrote: [ -> ]Got my first oled monitor. How does oled react to overclock and how safe is it? Btw max res has 980mhz pixel clock, but max limit is 1080mhz, do I have a reserve for overclock?) Lg gen 3 2k 240hz display (KTC Q2753SEL)

Usually any monitor with a scaler will not allow refresh rates out of safe operating range, and some monitors will skip frames at unsupported refresh rates instead of running the panel at a higher refresh rate. Any monitor with an on-screen menu has a scaler, so that's most monitors. 1080 MHz is the limit for DisplayPort 1.3/1.4 at 8 bpc and 4:4:4 chroma without DSC.

Thx vm for answer(it means a lot when you answer questions for so many years, I sincerely thank you), btw I was surprised when I saw 1450 max pixel clock, 12bit color deep, and min refresh rate 24, including vrr, it seems hdmi 2.1 gives much better ux than dp 1.4. In general, is hdmi 2.1 better from a gaming point (latency, input lag, gsync\vrr etc features) than dp 1.4?

Thanks for the EDIDs

(02-04-2025 05:58 PM)ToastyX Wrote: [ -> ]Either DVI or HDMI-DVI will work with your monitor, but HDMI-DVI will be more future-proof because newer video cards don't have DVI, and you'll be able to use the cable with an HDMI EDID emulator if that doesn't help.

1. So if HDMI-DVI cable will not help then I can use HDMI EDID emulator stick with that cable instead of DVI-DVI cable.
2. Is that EDID emulator what I need? Or it is wrong device?
3. CRU was made in Visual C++ witn WIN32 API or .NET API?
   

(02-07-2025 12:08 PM)Dripman Wrote: [ -> ]

• So if HDMI-DVI cable will not help then I can use HDMI EDID emulator stick with that cable instead of DVI-DVI cable.
  

That's what I said.

(02-07-2025 12:08 PM)Dripman Wrote: [ -> ]

• Is that EDID emulator what I need? Or it is wrong device?
  

I can't see the link.

(02-07-2025 12:08 PM)Dripman Wrote: [ -> ]

• CRU was made in Visual C++ witn WIN32 API or .NET API?
  

No.

(02-06-2025 07:54 PM)ArtMov Wrote: [ -> ]Thx vm for answer(it means a lot when you answer questions for so many years, I sincerely thank you), btw I was surprised when I saw 1450 max pixel clock, 12bit color deep, and min refresh rate 24, including vrr, it seems hdmi 2.1 gives much better ux than dp 1.4. In general, is hdmi 2.1 better from a gaming point (latency, input lag, gsync\vrr etc features) than dp 1.4?

Latency/lag and G-SYNC/VRR depend on the monitor, not the connection. HDMI 2.1 has more bandwidth but you need to make sure you're using full range RGB or else you're losing shades.

(02-05-2025 11:27 PM)riwi Wrote: [ -> ]Ola, with CRU I got 4k144hz working via my AVR using DSC. But as soon as I change to 10bit on NVCP I get a black screen. Could you help me figure out what is missing in my settings so I can get 10bit to work?

There's nothing missing.

You need dual-link DVI to get 120 Hz. HDMI-DVI adapters/cables are always single-link. There's no way to convert HDMI to dual-link DVI. Adding an HDMI data block in the extension block will make the GPU send an HDMI signal, which should allow you to select 120 Hz, but the monitor might not accept a single-link signal on the DVI port. You'll have to try it and see. Some monitors will display it with a warning message, but some monitors won't let you dismiss the warning message.
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Thank you so much!
And how i go about it? pLEASE
I have this options


EDIT:
I GOT UP TO THIS POINT


EDIT 2: Got it to work! here are the details! Thanks so much w/o changing the extension block wouldnt ve worked!

How do one donates? USDT?
THANKS!!


[/quote]

Hello! I would very much appreciate if you please can help me with a hardware update
Im now playing with AMD (760M) and i cant make it work with the same cable and options. Any ideas? Thanks in advance!

(02-07-2025 03:04 PM)ToastyX Wrote: [ -> ]

(02-06-2025 07:54 PM)ArtMov Wrote: [ -> ]Thx vm for answer(it means a lot when you answer questions for so many years, I sincerely thank you), btw I was surprised when I saw 1450 max pixel clock, 12bit color deep, and min refresh rate 24, including vrr, it seems hdmi 2.1 gives much better ux than dp 1.4. In general, is hdmi 2.1 better from a gaming point (latency, input lag, gsync\vrr etc features) than dp 1.4?

Latency/lag and G-SYNC/VRR depend on the monitor, not the connection. HDMI 2.1 has more bandwidth but you need to make sure you're using full range RGB or else you're losing shades.

I understand, I just see a real difference in responsiveness between hdmi 2.1 and dp 1.4 on my monitor, this is not a placebo, mb allm and qft give this difference? I understand dp 1.4 does not have such functions?
Also, vrr works noticeably better compared to adaptive sync, input feels more responsive, that's for sure, although vrr and adaptive sync do give a delay.

lg 39gs95qe owner here, been using the CRU and just noticed some odd behavior with the monitor and custom resolutions settings. So I am using the hdmi 2.1 AV connection, able to get 240 hz on 3440x1440 resolution by creating a new DisplayID 1.3 under Extension blocks. Been running with that for awhile including modifying the HDR metadata, but recently I tried out the resolutions that is found in detailed resolutions even made a few custom ones there and found out the image quality is so much better than the extension block DisplayID resolution, so the no brainer is that I should be using Detailed Resolution or the ones from CTA-861 because it gives better image quality in HDR correct? The problem here is that when I tried to modify the hz, it limits my pixel clock to about 655 mhz which means about 122 hz max, whereas in the DisplayID resolution there seems to be no limitations, so what is the deal here? Is this by design because of monitor limitations, if not is there a way that I can bring the picture quality in the DisplayID extension block resolution to be on par with the detailed resolution that is limited by the 655 mhz pixel clock?

Also under the display drop down box I found a new version, I am currently using GSM780A which is the active profile, but there appears a GSM780B which is a new profile, that may have appeared when I updated the monitor firmware, not sure, but when I enter that profile it showed a new setting under the Detailed resolution section that is greyed out which is - Range limits: 48-240 Hz, 400-400 KHz, 1400 MHZ.
The problem here is that i don't know how to make that profile active, i selected it in the drop down box and use restart64.exe and all it did was revert back to the GSM780A profile, how do I make the GSM780B my active profile?