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75hz monitor glitching out at 75hz?

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Hello everyone again, my friend got an acer ek241y. At first he used a rx 580 and the monitor was running at 75hz. It was fine in desktop with some weird artifacts like and screen flickering and lines or flashing during ingames. Those happened very very fast and brief like within a second. So he thought it was the gpu that's faulty. Today, he swapped it out with a gtx 1660 super. Ran ddu and uninstall the old drivers etc. Now after finish installing nvidia graphic drivers, the monitor straight glitches out. There were lines everywhere and flickering nonstop even in desktop. But when he switch to 60hz, everything is okay. He tried different hdmi cables, same result. I've searched around the forums and it seems to be related to cheap ips monitor having this issue. Any other ideas?
 
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If monitor is still under warranty RMA it. I wanted to suggest hdmi cable swap but you say you already tried it and nothing has changed. I would suggest also to give a try to vga connection but i think with 1660 it is not possible/very difficult and generates extra cost in form of active signal converter from hdmi or display port to vga.
 
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Benchmark Scores Faster than yours... I'd bet on it. :)
Before you try to rma, secure cables, swap cables and inputs and see if the problem still happens.
 

jarkid

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I just have the same problem .... when running at 60hz, everything is fine.

when running at 75hz, it would be flickering at times ...

So Paul, have you solved this problem ?

or could you suggest your friend to use a new monitor at 75hz to see if the flickering still happens??

Thanks a lot !
 
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I just have the same problem .... when running at 60hz, everything is fine.

when running at 75hz, it would be flickering at times ...

So Paul, have you solved this problem ?

or could you suggest your friend to use a new monitor at 75hz to see if the flickering still happens??

Thanks a lot !
Unfortunately no. I have scoured the internet for the solutions and the solution was only to rma it. He didnt bother with it and just kept it at 60hz.
 
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If you guys are using nvidia gpu's you could try setting a custom resolution and messing with color settings like dynamic range, also my first 4k monitor could overclock the refresh to 80hz but it stopped being smooth and caused juddering in all things, it may run enough that the manufacturer can claim 75hz but as in all advertising there are falsities or claims that sometimes don't hold up.

Maybe the 75hz is only achievable on one input port ie if the monitor also has dvi input then 75hz may only work on that input.

abnv.png
 
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Unlucky, try setting output dynamic range to limited and output colour depth to 8bpc. Set the output colour format to YCbCr420 This should free up around 20hz bandwidth. Good luck!!! :toast:
 

jarkid

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Finally I found the root cause that RX 570 has some problem with the 75hz default setting and BlueStacks running a specific game, now I've changed to GTX1660, then it's fine.

or you have to use CRU tool to change the LCD timing parameter from LCD standard to LCD native.

And poorsod your friend used RX 580, so I guess the RX 5 series has some issues...right now I am happy with my new card...
 
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Finally I found the root cause that RX 570 has some problem with the 75hz default setting and BlueStacks running a specific game, now I've changed to GTX1660, then it's fine.

or you have to use CRU tool to change the LCD timing parameter from LCD standard to LCD native.

And poorsod your friend used RX 580, so I guess the RX 5 series has some issues...right now I am happy with my new card...
Actually it was worse for gtx 1660. Before switching to the gtx 1660, his screen only glitches randomly and less frequent. After switching to 1660 as well, the screen constantly glitches at the top part lol.
 

2DaRescue

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Hi Guys!

It's 2022 and nearly 2023, i know this is rather an odd timing for replying *Giggles*, but i recently bought a new UWQHD monitor (cb342cksmiiphzx) and had the same problem pairing it up with a1070ti Gigabyte Aorus.

- I thought it was an issue with the DP (Monitor at first, secondly the GPU), i have swap different version of DP cables and, retested different HDMI as well but to no avail.

- I thought it was the GPU DP port that was having the issues since i bought it off from the used market (which i wasn't aware as i was strictly gaming on a single monitor through the HDMI all while using the card after purchased)

- I thought something in the GPU PCB had an issue causing this sort of glitchy artifact thing ( thats what happened to 2080 RTX for its infamous artifacting IC/VRAM issue, but i hold on this thought and proceed the troubleshooting)

- After reading a while (including gigabyte 1070ti's hardware specification), i nearly gave up and wanted to say that either my GPU or Monitor had defects and seriously wanted to pack the monitor back into its box for RMA (just in case its the monitor, as this is the fastest to get support out of the 2 options)


Yes, tuning down towards 60 fps was fine on lower resolution, the glitches were gone but since my 34inch had a native 3440x1440, i was keen to know why when im pushing higher resolution it gives me this flickering even with 60 FPS. At the time i was looking for answers through internet browser, then i realized the flickering had gone, and i switched back to desktop, and there it is again, the flickering came back!

At this moment it hits me and i concluded this is actually an issue with software integration aside to my initial thought of having hardware issues. So as always, started with playing around custom resolutions in Nvidia control panel, playing with the refresh rate and resolutions but nada, same output as what were found earlier; lower Hz,lower res its okay, higher res, higher Hz,brings back the glitchy flickers.

It was super confusing at first & then little Einstein kicked me in the head;

"Why dont you try out a higher resolution background wallpaper since Youtube decided to adaptively loads a 2K video automatically based on your native display?"

*BOOM!*


That was the answer!

My previous wallpaper was meant for my previous 27 inch 1080p (now a 2nd monitor) with the correct 1920x1080 format, and luckily i had previously saved a high resolution Maplestory wallpaper in the past with 5120x2880 resolution, i immediately switch them out to test it and voila! No more flickering!

It was really a tiring findings but it's all worth it.

Zero hardware issues found (GPU,Ports,Monitor,etc.) and was actually an issue with the native display not being able to correctly adjust between UWQHD display and a 1080p FHD wallpaper to fit in all those spaces when you switch out/upgraded the monitor around (not sure where exactly the problem lies, but probably how WinOS are currently coded on retaining the same screen settings without considering the hardware change causing an obvious malfunction).

I vaguely remembers back then though, that if a certain picture doesn't actually resembles the monitor's hardware capability, the background image turned into a solid color instead, that was probably one of the windows XP/NT/98 good genuine-way of alerting & notifying the users (my apology if this wrong).

I really hope this will be the answer for most of us who had experienced this and to those who are going to make research and stumble upon this thread to find a solution to their frustration and distressed in correlation to this glitch flickering happening to them.

Until then,

Happy New Year 2023!
 

qubit

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That monitor is failing, so at some point it won't even display a 60Hz picture. Would be easier if it just died completely, wouldn't it?
 
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Hi Guys!

It's 2022 and nearly 2023, i know this is rather an odd timing for replying *Giggles*, but i recently bought a new UWQHD monitor (cb342cksmiiphzx) and had the same problem pairing it up with a1070ti Gigabyte Aorus.

- I thought it was an issue with the DP (Monitor at first, secondly the GPU), i have swap different version of DP cables and, retested different HDMI as well but to no avail.

- I thought it was the GPU DP port that was having the issues since i bought it off from the used market (which i wasn't aware as i was strictly gaming on a single monitor through the HDMI all while using the card after purchased)

- I thought something in the GPU PCB had an issue causing this sort of glitchy artifact thing ( thats what happened to 2080 RTX for its infamous artifacting IC/VRAM issue, but i hold on this thought and proceed the troubleshooting)

- After reading a while (including gigabyte 1070ti's hardware specification), i nearly gave up and wanted to say that either my GPU or Monitor had defects and seriously wanted to pack the monitor back into its box for RMA (just in case its the monitor, as this is the fastest to get support out of the 2 options)


Yes, tuning down towards 60 fps was fine on lower resolution, the glitches were gone but since my 34inch had a native 3440x1440, i was keen to know why when im pushing higher resolution it gives me this flickering even with 60 FPS. At the time i was looking for answers through internet browser, then i realized the flickering had gone, and i switched back to desktop, and there it is again, the flickering came back!

At this moment it hits me and i concluded this is actually an issue with software integration aside to my initial thought of having hardware issues. So as always, started with playing around custom resolutions in Nvidia control panel, playing with the refresh rate and resolutions but nada, same output as what were found earlier; lower Hz,lower res its okay, higher res, higher Hz,brings back the glitchy flickers.

It was super confusing at first & then little Einstein kicked me in the head;

"Why dont you try out a higher resolution background wallpaper since Youtube decided to adaptively loads a 2K video automatically based on your native display?"

*BOOM!*


That was the answer!

My previous wallpaper was meant for my previous 27 inch 1080p (now a 2nd monitor) with the correct 1920x1080 format, and luckily i had previously saved a high resolution Maplestory wallpaper in the past with 5120x2880 resolution, i immediately switch them out to test it and voila! No more flickering!

It was really a tiring findings but it's all worth it.

Zero hardware issues found (GPU,Ports,Monitor,etc.) and was actually an issue with the native display not being able to correctly adjust between UWQHD display and a 1080p FHD wallpaper to fit in all those spaces when you switch out/upgraded the monitor around (not sure where exactly the problem lies, but probably how WinOS are currently coded on retaining the same screen settings without considering the hardware change causing an obvious malfunction).

I vaguely remembers back then though, that if a certain picture doesn't actually resembles the monitor's hardware capability, the background image turned into a solid color instead, that was probably one of the windows XP/NT/98 good genuine-way of alerting & notifying the users (my apology if this wrong).

I really hope this will be the answer for most of us who had experienced this and to those who are going to make research and stumble upon this thread to find a solution to their frustration and distressed in correlation to this glitch flickering happening to them.

Until then,

Happy New Year 2023!
Firstly if you read the thread CAREFULLY you would know that the issue everyone else here had was during in game, not on the desktop wallpaper.
Secondly, your wallpaper resolution has NOTHING to do with your monitor resolution. When a wallpaper resolution doesn't match the monitor resolution, Windows either stretches the wallpaper or crops it to fit depending on your settings. If you are experiencing issues with wallpaper resizing, that is Windows at fault, not the GPU, not the monitor. I've NEVER seen Windows have issues adapting a different resolution wallpaper to a different resolution monitor. This is an indication of a corrupt Windows installation. Probably a bug somewhere. You should reinstall your Windows.

I know its the end of the year, but please refrain from drinking too much before reading and posting on TPU and embarrassing yourself in the process.
 
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