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krom_lg · 10-23-2020, 12:44 AM

I need help to change EDID on my monitor with this program, for me changes I made dosent take effect after using restart.exe. I have Samsung C27HG70 connected via DisplayPort. I want change free-sync range and ID of the monitor. Can someone help me?

***ToastyX*** · 10-23-2020, 12:57 AM

(10-23-2020 12:20 AM)LLopesx Wrote: Thanks, i did what you said and worked well, but now i don't know how to put more refresh rate than 60hz, there is no option on windows, you saved my day thanks bro

You'll have to add an HDMI 2.0 data block in the extension block (defaults are fine).

***ToastyX*** · 10-23-2020, 12:58 AM

(10-22-2020 03:58 PM)slobo2712 Wrote: Hi everyone, I have LG 43UK6300PLB TV , Intel CPU G4620 , Gigabyte B250M-DS3H with 1.4 HDMI out.Im interested if there is any chance to set up 4k60hz 4:2:0 resolution with this configuration.I have tried everything with this utillitu but 4k60hz
just doesnt show up in resolutions ..I know that hdmi 1.4 is limited to 4k30 but is it possible to do this ?https://www.tomshardware.com/amp/news/nvidia-kepler-4k-hdmi-1.4,27117.html Tnx in advance

In theory it's possible, but I don't know if Intel's driver implements 4:2:0. CRU can't read the extension block with Intel GPUs, so you'll have to delete any default extension blocks and create one manually. Add a CEA-861 extension block. Then add an HDMI data block (defaults are fine) and a TV resolutions data block with "4:2:0 resolutions" checked. Then you can add 3840x2160 @ 60 Hz in there.

***ToastyX*** · 10-23-2020, 12:58 AM

(10-22-2020 02:37 PM)Last Wrote: Thank you very much for your answer. I tried what you said, but either there as some settings in the HDMI support data block I should setup correctly (where I cannot find 2560x1440 as an HDMI resolution) or I have to do something with the detailed resolution of the extension block (where I added a detailed resolution choosing Timing-> Automatic-native (2560x1440 59.950 Hz)
My system does not cooperate or most probably my skills are not up to the task. Is there anything else I can check around here that has to do with Intel Graphics and Dell limitations?

You shouldn't need to do anything else. It should work with a detailed resolution. If not, then there is some bandwidth limitation happening.

jaylumx · 10-23-2020, 01:12 AM

I have an Acer CG437KP which has a native resolution of 3840x2160 @ 120hz 4:4:4 8 bit colour. I use DisplayPort to connect my 2070 super to my monitor and I want to create a custom resolution of 4k @ 96hz 4:4:4 at 10 bit which is proving a little difficult.

When I create a custom resolution with NVCP, I can select 10 bit colour but it reverts back to 8 bit when I apply it.

When I use CRU to create a custom resolution via extension block under DisplayID - LCD standard - I can only select 8 bit colour from NVCP. If i use LCD reduced timings it borks the monitor.

I then find out the pixel clock border for 8/10 bit colour and modify the custom resolution timings so that the pixel clock is below it which allows me to select 4k 96hz 4:4:4 at 10 bit colour......but it breaks Madvr. In Madvr, a new identification is used but it nullifies all my wide gamut colours and HDR formats as well as displaying only 8 bit colour (as opposed to 8/10/12 bit originally) and while displaying HDR video as SDR.

I tried transferring the CRU timings to the NVCP but again 10 bit colour did not stick when I applied it.

Any thoughts on how to solve this problem Toastyx?

Any help will be appreciated

***ToastyX*** · 10-23-2020, 01:23 AM

(10-23-2020 01:12 AM)jaylumx Wrote: I then find out the pixel clock border for 8/10 bit colour and modify the custom resolution timings so that the pixel clock is below it which allows me to select 4k 96hz 4:4:4 at 10 bit colour......but it breaks Madvr. In Madvr, a new identification is used but it nullifies all my wide gamut colours and HDR formats as well as displaying only 8 bit colour (as opposed to 8/10/12 bit originally) and while displaying HDR video as SDR.

I tried transferring the CRU timings to the NVCP but again 10 bit colour did not stick when I applied it.

Any thoughts on how to solve this problem Toastyx?

There might be other information in the default DisplayID extension block that might be needed for HDR, but CRU can't read the extension block because NVIDIA's driver won't provide more than one extension block. If you can find some way to dump the full EDID with the DisplayID extension block, then you can import it into CRU. If you have access to an AMD GPU, it should be able to read it. If not, maybe there's some way using Linux.

LLopesx · 10-23-2020, 01:50 AM

(10-23-2020 12:57 AM)ToastyX Wrote:
(10-23-2020 12:20 AM)LLopesx Wrote: Thanks, i did what you said and worked well, but now i don't know how to put more refresh rate than 60hz, there is no option on windows, you saved my day thanks bro
You'll have to add an HDMI 2.0 data block in the extension block (defaults are fine).

Tried that and i think it didn't work
And i tried to add a resolution in the extension block and 120hz worked but when i tried to enable freesync the refresh hate changed to 60hz :/

***ToastyX*** · 10-23-2020, 02:15 AM

(10-23-2020 01:50 AM)LLopesx Wrote: Tried that and i think it didn't work
And i tried to add a resolution in the extension block and 120hz worked but when i tried to enable freesync the refresh hate changed to 60hz :/

You are missing the HDMI support data block. You need both HDMI and HDMI 2.0.

LLopesx · 10-23-2020, 02:31 AM

(10-23-2020 02:15 AM)ToastyX Wrote:
(10-23-2020 01:50 AM)LLopesx Wrote: Tried that and i think it didn't work
And i tried to add a resolution in the extension block and 120hz worked but when i tried to enable freesync the refresh hate changed to 60hz :/
You are missing the HDMI support data block. You need both HDMI and HDMI 2.0.

Now it worked 120hz with freesync, thanks ToastyX you're a god, thanks for your time helping me, someday i pay a coffee for u, and just to know there's a way to put on 144hz with hdmi?

***ToastyX*** · 10-23-2020, 02:41 AM

(10-23-2020 02:31 AM)LLopesx Wrote: Now it worked 120hz with freesync, thanks ToastyX you're a god, thanks for your time helping me, someday i pay a coffee for u, and just to know there's a way to put on 144hz with hdmi?

Normally laptops with Intel GPUs only support up to 300.99 MHz pixel clock with HDMI, which isn't enough for 1080p @ 144 Hz, but then 3840x2160 shouldn't have worked unless it was 30 Hz or YCbCr 4:2:0, so I don't know.