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Samsung C24FG70 72Hz issue

November 29, 2017, 12:11 am
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Hi all!

I have a Samsung C24FG70 monitor (144Hz max).
I would like to do a 1080p 72Hz custom resolution, but I have an issue.

I can set 4 different refresh rates from the monitors OSD: 60, 100, 120, 144 Hz.

The "standard" 72Hz timings don't work, it cause frame skipping.
[Image: http://kepkezelo.com/images/mleewqeg7e6fa945h8kv.png]

I set the monitor to 144Hz in the OSD, looked at the timings in the nVidia control panel,
(Horizontal front porch: 48, sync width: 32, total: 2080pixels, +
vertical front porch: 3, sync width: 5, total: 1157pixels, -)
and used them for 72Hz. And it works.
I checked frame skipping at http://www.testufo.com, and voila, no skipping.

But when I play some game, I notice something unusual. It seems like a persistent, very slight stuttering. It's similar to half the fps of the refresh rate. When I look at the data in the OSD, it seems data are correct (72 Hz, 83,3KHz), but I can notice that slight stuttering when playing (though the game can handle 72 Hz, no problem with 72 fps).

What can be the problem?

Thanks for the answers!
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2160p 120Hz over HDMI 2.0...possible?

November 29, 2017, 8:42 am
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Does anyone know if it's possible to get my GTX 1080 to output 4k 120 Hz over HDMI 2.0?

At very least with standard timings, 2160p 4:2:0 120 Hz should fit within the HDMI 2.0 bandwidth limitations, and with reduced blanking, 2160p 4:2:2 120 Hz should also fit. 2160p 4:4:4 120 Hz obviously does not fit.

I've tried using CRU, but it doesn't seem to be possible to specify a 2160p 120 Hz resolution at any chroma other than 4:4:4 (RGB).

Does anyone know if there's any way to get 2160p 120 Hz at different chromas?
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trying to get 144hz

December 3, 2017, 12:05 pm
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when i try to get 144hz the screen just goes black and says "No signal" for a few seconds then when i get back in it just reverts me to 120hz
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4 desktops on my screen.

December 23, 2017, 1:45 am
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So..

I've got a Overlord Tempest X270OC from my nephew, but i have a small problem..

It shows the image from the computer 4 times, both in Windows and while booting.
Using DVI cable and have a another monitor 24" fullHD monitor via HDMI (working perfectly at the same time).

Any ideas?

Running windows 7 pro 64bit, GTX 1050 Ti OC, newest drivers, using NVIDIA Pixel Clock Patcher 1.4.2 and Custom Resolution Utility (CRU) 1.3.1

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Please help a newb

January 1, 2018, 11:13 pm
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I have a Samsung tablet/pc thing and would like the refresh rate to be 40Hz. It has intel hd graphics 3000 and I understand this could be problematic, as the intel control panel only allows 60Hz and this is a 2nd gen intel (Sandy Bridge), so the custom intel driver may not work as it only seems available for 4th gen+. I want to have 40Hz (or even 50) at all costs, what are my options? I've been reading about DTD Calculator and HZTool but I don't know very much about them

Thanks for any advice
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Elgato 4K Capture Card + Custom Refresh Rate, but No Audio

January 4, 2018, 8:17 pm
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I have an Elgato 4K capture card that was giving me a hard time with refresh rates due to the cloning bug that's been in Windows 10 since its inception. The culprit is likely Desktop Window Manager.

Anyway, CRU fixes this problem by allowing me to set up a custom resolution for the capture card so it'll run at the same refresh rate as my monitor. 3440x1440, 100hz rather than 60hz over HDMI. Works perfectly... except for audio. It was dead silent.

I read the instructions for adding audio support, followed them, and it started popping/clicking. I tried editing the existing extension block, removing one of detailed resolutions there, and adding my own and that did the exact same thing. The moment I go back to a standard resolution, audio via HDMI works fine.

What am I doing wrong?

Thanks for any help/insight you can offer.

.jpg  audio_help.jpg (Size: 98 KB / Downloads: 11)
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CRU detailed res not showing up

January 21, 2018, 6:47 am
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Hey,

I tried using the CRU. I'm not familiar with the program so keep that in mind Tongue
I used the detailed res to add profiles. But the profiles i added don't show up in the configuration screen. Even after rebooting and using the restar.exe en restart64.exe file.

Why won't it register?
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olde 55b6p 120 mhz 2556x2080

February 14, 2018, 8:24 pm
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hi all, first I want to thank toasty for his amazing work. now the question, i have an oled 55b6p . a 1080 ti nvidia, and i managed to get the tv , on PC resolution ,to reach 2553 or 2556, i dont remember, x 2080. 120 refresh rate. This was when I had my 1060 gfx nvidia, and since i got the 1080 ti , I cant do anything more than 60 mhz, even on 1920x1080. can someone help me please, sorry for my english, i hope you guys more or less get what i m talking about anyway lol. thanks
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CRU doesn't make the profiles

February 24, 2018, 12:02 pm
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Good day,

I tried the CRU program. But the profiles fail to show up in the settings of the monitor.
I use an ASUS laptop (integrated graphics intel 4000 and GPU NVidia 635M) running on the latest (clean install) version of windows 10.
The monitor I'm using is an HP 22 xw.
Ask away if you need any more details. I followed the description of how to use the utility according to the description, so no faults there as far as I know.

Any ideas why it is not responding?

Thank you
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NVIDIA PATCHER, resolution over 400 MHz pixel clock is not showin up for selection

March 2, 2018, 1:48 am
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Heya,

Any detailed resolution that I add via CRU which exceeds 399.999MHz pixel clock is not visible for selection anywhere so I cannot use/activate it. I use CRU normally otherwise without issues. I did the "full" nvidia patch under normal Windows mode and restarted several times. Running these in this order:

1. reset-all.exe

2. restart64.exe

3. adding one detailed resolution with more than 400MHz (for example 420)

4. restart64.exe

did not help either.

Any ideas please?

Thank you very much!

My setup:

Windows 8.1 x64, gtx960, nvidia 372.70, large Trinitron CRT monitor over regular D-SUB analog, cheetos
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Talk about Intel HD Graphics Graphics Clock

March 5, 2018, 9:43 am
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Im having some problems with my HDMI connection. I think the pixel clock on my Intel HD 4000 is limited by Samsung. I see these patchers for Nvidia and AMD, also have a similar way to increase the pixel clock intels as well?
https://www.google.com.vn/
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Fake DVI dual link cable?

August 31, 2017, 8:49 pm
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Hello everyone. So I am attempting to overclock my monitor which is Philips 227E3LH. I have a Nvidia GTX 750 and a DVI cable.

So I managed to successfully overclock my monitor to 1080P 75Hz and been using it for years without any problems or frame skipping with single link DVI cable. I can overclock using two ways. First without using the pixel clock patcher using LCD reduced timing at 75Hz which results to 164.6Mhz. Second using the pixel clock patcher and LCD native at 75Hz which results to 185.6Mhz.

So I bought a Dual link DVI cable so I can use native timings at 75Hz without without using the patcher. I am certain dual link DVI has 330Mhz pixel clock limit but this cable I got has same results as single link still cant go over 165Mhz. My monitor and graphics both has Dual Link DVI ports. So, although having 24-pins I suspect it is a fake dual link DVI cable.

Is the Pixel Clock patcher needed to get higher than 165Mhz in a Dual Link DVI cable or mine is surely fake.1080P 75hz at 185Mhz without the patcher possible in real dual link DVI cable? Thanks for reading.
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Incorrect Cable (Error Message) on the Acer GN246HL when switching to >60Hz

March 14, 2018, 5:17 pm
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Hi Toasty and All,

I have recently bought an Acer GN246HL (144Hz) with my new setup. As this is my first time purchasing (inexperienced) I didn't consider the compatibility of the ports for the monitor and my gpu and it turns out the monitor is DVI and gpu DP. I bought an adapter but can only run 60Hz. Anything above 60Hz causes a message saying 'Incorrect Cable. Please use DVI cable that came with your minitor' which cannot be removed and slowly floats around the screen.
While it says this, it's running 144hz perfectly.

My question is,
Is there any way to disable this message so I can use 144hz and save me buying a whole new monitor?

I heard mentioned that it might be able to be done through monitor BIOS settings. But I dont know. Ive checked a number of sights but they say buy a new monitor.

Any help is appreciated. Thanks very much!
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monitor permanently damaged?

March 19, 2018, 1:18 pm
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Hello!
Recently I'm having some issues with my monitor (BenQ XL2430T + AMD R9 380X ASUS STRIX, Windows10x64) and I'm afraid I might have permanently damaged my monitor with CRU's or AMD Radeon's custom resolutions.

I have mainly used 1440x1080@120Hz, 1280x960@120Hz and 1024x768@120Hz, scaled to fullscreen via DisplayScaling and it was working just fine (beside a few occasional "Out Of Range" notifications which were resolved by turning the monitor off+on) until yesterday, when the monitor failed to display anything (black screen) after being idle for a while.

Now, whenever I try to set the refresh rate above 60Hz (100Hz, 120Hz, 144Hz), the screen scrambles and becomes unusable. The issue occurs on all resolutions. The monitor works just fine at 60Hz though.

This is what it looks like:

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.jpeg  20180319_203935_preview.jpeg (Size: 344.32 KB / Downloads: 7)
This is the service menu:

.jpeg  20180319_214350_preview.jpeg (Size: 617.21 KB / Downloads: 13)

I have tried the following things to resolve the issue:
- switched to DVI-D cable
- switched back to DisplayPort cable
- reinstalled AMD Radeon (clean install)
- uninstalled all graphics drivers with DDU (+reinstall)
- reinstalled .inf file from BenQ support page
- reset-all via CRU
- reset to factory defaults via OSD
- tried various resolutions/timings via CRU and AMD Radeon
- tried AMD/ATI Pixel Clock Patcher
+issue also occurs with integrated Intel GPU (HD Graphics 530) @ DisplayPort

Is it possible that I have permanently damaged my monitor or might there be another cause/solution?

Any help would be sincerely appreciated!

Greetings
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Acer XR342CK: adjusting freesync range over HDMI

April 1, 2018, 6:19 pm
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Long story short, I've been having loss of display issues over DP upon boot using a certified DP cable (I've checked two other DP cables including accel and amphenol), and have since switched to the hdmi 2.0 input on my xr342ck which for one reason or another completely remedies the issue.

When testing using the DP cable I was able to adjust my freesync minimum down to 42hz from the stock 48hz, for an overall range of 42-75hz without any black screening during loads below, above, and inside the fps threshold. Since switching to HDMI I have be able to set the minimum refresh rate as low as 40hz without any loss of signal using CRU to edit; CRU 1.3, edit the extension block for the monitor, then edit the data block for freesync range.

I checked a few games and all seemed to be working properly from 40-75 hz. Shut my pc off for the night and when I went to start my pc up, it would boot but there was no signal to the monitor. With the pc still on I unplugged and plugged the hdmi cable back in and the monitor displays a signal with no further issues. I then tried to adjust the minimum up in 1hz steps until I arrived back at the standard 48hz minimum, yet the monitor would not display a signal upon boot (reinserting the hdmi still cable still worked). It was not until I completely reinstalled Adrenalin that my monitor would behave normally.

Is there something im missing in terms of creating resolutions or adjusting another setting to avoid this weird boot issue while using HDMI? The only problem seems to be the no signal upon boot.

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Changed active pixels and stuff to make custom resolution work - monitor broken

April 5, 2018, 5:30 am
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hello guys

i wanted to use nvidia surround but since my 3rd monitor is a 5:4 with only 1024 height i wanted to make a custom resolution with 1350*1080 to make 1080p available for nvidia surround.

multiple times it said the resolution wouldnt be working, so i randomly tried to chance the active pixels. by mistake i changed active pixels to something below 900 for width and height and all 3 monitors began going blank/artifacting.

after rebooting and using vga video mode i could revert everything but my 3rd 5:4 monitor stays black.

sometimes it says "out of range" but no matter which resolution or refreshrate i use it stays black.

did i break my monitor? the other 2 are working fine. i already tried switching cables (dvi, hdmi) but nothing seems to fix it. also used cru restart/restart64/reset but nothing seem to work. i also reinstalled nvidia gpu driver. full uninstall and reinstall

i want my 3rd monitor again Sad
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ASUS VG245H won't OC by even 1hz

April 5, 2018, 2:47 pm
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Hey everyone, I have been trying on and off for a couple months to get this to work, and have had absolutely 0 results, so finally, I am going to reach out for some help.

I have the ASUS VG245h which is a 75hz gaming monitor as you know, it defaults out of the box at 60hz and can be immediately changed to 75hz without anything other than a simple right click and change.

That said, is that already a max overclock even though the box advertises it as a 75hz? Because....

I am hooked up with an HDMI cord, I believe it is 1.0
NVIDIA GTX 750ti *I have run the Nvidia patcher as well it found roughly 10 limits and patched them* (I did this obviously in my own troubleshooting from before asking here) so I may have to undue this?***
ASUS VG245H 75hz monitor with Freesync
When I go to blur busters and run the ufo test, I get 60hz even when asus monitor flickers and ACCEPTS 75hz and says im using 75hz as my selected option.

Use as admin or not,
LCD native/reduced etc or not,
Nvidia Control panel OR Cru Utility,

It always says out of range, no matter what.

I heard HDMI 1.0 will not run anything above 60hz at 1920x1080

So, is that the simple thing im missing? A different cord hardware wise? UHHH lol, if thats it, I am.... something inbetween smart and... something that thinks it must be more than an hdmi cord and don't even think of it LOL.

Thanks!
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Do consoles honour what's in EDID?

April 19, 2018, 1:19 pm
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It seems to just fire out whatever and hope for the best. Trying to make sure it sends 4:4:4 rgb and chroma.
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Monitor reboots when alt-tabbing &/or starting the game.

April 22, 2018, 8:20 am
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Hi!

My monitor (Acer XF240H) reboots & restarts itself whenever I start a game in fullscreen, or when I alt-tab out of said game. I got two monitors though. So it's the XF240H (the one that's restarting itself) & then there's a secondary 60hz monitor that's a generic Packard bell monitor (Viseo 243D) that's plugged in through DVI-D (dual)

Games affecting this: Battlefield 1, Battlefront II, Mass Effect Andromeda, KOTOR 1, KOTOR 2.

It doesn't happen all the time, but it happens a hell of a lot. I've been looking around & I can not find a definitive answer. Any assistance is greatly appreciated!

My theory is that it's framerate related. As KOTOR 2 only had this issue, until I switched it to 144hz. Problem there is that on every game It's set to 144hz & my monitor is also set to 144hz. So there's no difference in refreshrates.

Specs:

Monitor: Acer XF240H

GPU: Strix GTX 1080

CPU: Ryzen 5 1600

HDD: 2 TB HDD

SSD: 190gb SSD

PSU: 650W EVGA "SuperNova"
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LG 34UC80 Overclocking past 75hz with Freesync enabled

April 23, 2018, 7:47 am
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I recently got an LG 34UC80 and I'm loving it - running on a Radeon R9 Fury X. I have used CRU to get the Freesync range to 33-75 and I'm interested in overclocking the refresh up higher than 75hz. I have been been able to add additional detailed resolutions above 75hz, but when I do, the AMD settings driver reports "Freesync Not Supported."

So what am I missing? After I add the resolution, Windows allows me to select the higher refresh, but if I can't use Freesync with the higher refresh, it's not worth the trouble. Any way to get a higher refresh and still have Freesync working?

Thanks for any input you may have!
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