HP 25x Intermittent Video Signal

[Alex_S1]

Hi all.

I purchased a 25x a while back and I've been very happy with it overall. However there seems to be this glitch or bug thats a nuissance and I cannot seem to fix it. Il describe it briefly.

Occasionally when opening fullscreen applications or games, my HP 25x would lose and recieve signal intermittently, and is sometimes triggered when giving inputs to the game. When this happens it is unplayable as my screen is black and then shortly returns for the cycle to continue. I also have a LG UHD 4k monitor and being in fullscreen on that monitor does not show the problem. I will link a video shown below. The game "OSU" is used as an example.

https://youtu.be/OXPpHzU0mHk
https://youtu.be/LeW5ddvmpco
https://youtu.be/RxizhO_W0e8
https://youtu.be/xd30qOz2TRw

The problem only occcurs occasionally on the 25x. Whether it be a light workload or an intensive one and at any time.

Steps I have done to try and fix the issue but have failed:
Restarted the application
Disabled Fullscreen Optimisations
Turned on Compatability Mode
Reinstalled the latest graphics card drivers (Wiped using DDU)
Reinstalled the specific HP 25x Monitor Drivers
Reinstalled Windows (Not for this specific Issue)
Shutdown any other unneccesary applications running in the background
Used HP Recommended Power Settings
Ran HP Support Assistant to get new drivers
Ran Windows Update to get new drivers

What fixed the issue temporarily:
Turning the monitor off and on again
Unplugging and replugging the display port cable
Restarting the computer

I would like to rule some things out for starters as I feel like the common troubleshooting questions would be given to me that I have already done.

Both monitors have display port 1.2 cables running to the GPU with both cables being identical in terms of model.
My PC could be at 10% or 100% utilisation and the same issue would occur.
As I said previously I reinstalled every possible driver I could think
My PC is up to date with all drivers being up to date.
This issue still persisted before and after wiping and reseting my pc completely.
This issue still persisted after swapping out the displayport cables for different ones.
Power settings in NVIDIA Control panel are stock.
Exiting fullscreen on the application while the issue is occuring causes the monitor to black out completely and freeze, alongside the PC. I have CTRL + ALT + DEL to get the computer back.
The issue still persisted before and after installing 3rd Party OC GPU tools.
The audio still plays when the issue is occuring.

One interesting observation I found was that while using OBS to capture the 25x display, it showed no intermittent video while the 25x was flickering on and off. This leads me to think that the video signal is still being sent to the monitor as turning off the monitor causes a black video signal on OBS.

I feel like this is a driver issue or just some glitchy compatability between my GPU and monitor. I also have suspicion to believe that it might be G-Sync as I read on forums this is the culprit aswell, but is then contradicted with the fact that my LG monitor is also g-sync with no issues appearing on that one.

My PC is a Omen 880-553na
GPU - HP RTX 2070
CPU - i7 9700k
PSU - HP 500W
GPU Driver - 27.21.14.5709 (10/22/2020)
BIOS - F.52

I have exhausted all the troubleshooting steps that I thought of and that were given to me.
If anyone has any other ideas that might fix the issue that would be greatly appreciated.
If not I might have to get the monitor replaced, but im not convinced that the monitor is at fault here.

Cheers
Alex

[praveenbv]

Hi @Alex_S1,

Welcome to the HP Support Community.  

As this is a hardware issue, I'd suggest you Contact HP in your region regarding the service options for your computer. 

If you are having trouble navigating through the above options, it's most likely because the device is out of warranty. If yes? please send me a private message with the region you are contacting us from. Check next to your profile Name, you should see a little blue envelope, please click on it.   

Have a great day!  

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