Second monitor keeps on temporarily going black at random

I have an NVidia 4090 with 3 monitors plugged in. Two are Display Port one is HDMI. They all randomly turn on and off. All have high speed cables.

We all have to get to the bottom of this.

I started to have the same issues as everyone else, and I feel we should all start pinpointing to the cause of the issue. If Microsoft can't, then we will.

*A quick description of my issue:*Issue: External Screen Flickers ON an OFF randomly.
Specs: **** - **** Dell XPS15 9570

• Windows 11 Pro 10.0.22621 Build 22621
• Intel(R) Core(TM) i7-8750H
• Two iGPU (Intel and NVIDIA).
  [Intel's GPU is the one that is hardwired to the HDMI port, NDVIDIA's is only a 'logical GPU']
• Drivers:
  * Intel UHD Graphics 630 - Driver version 27.20.100.96.64
  * NVIDIA GeForce GTX 1050 Ti with Max-Q Design - Driver version 30.0.14.9649

Key Notes (No Solution as of yet):

1. No hardware problem, I tried booting up from a LIVE USB with ubuntu and no flickering.
2. Connected 5 individual external monitors, all showing the same issue.
3. Max refresh rate supported on laptop is 60hz. Changed external monitor's refresh rate to equal laptop's. Tried other refresh rate values.
4. Changed HDMI port 3 times, no physical cable problem.
5. Uninstalled fully all GPU drivers (Using the DDU utility). Installed latest versions of the drivers. Downgraded GPU drivers and BIOS firmware.
6. Can't disable or enable G-Sync on my monitor/laptop given NVIDIA is not the main IGPU (NVIDIA does not allow me to change the setting)
7. Attempted disabling bluethooth drivers (as stated by a community user)
8. Attempted changing power settings to 'never' when plugged in.
9. Tried disabling Hardware-accelerated GPU scheduling under system > Display > Graphics > Graphic Settings
10. Fully reset Windows 11 [keep files] for a 'fresh' install.

My analysis (Based on previous analysis done):
First of all, before start breaking down why the issue is happening on the first place, we need to work together and start sharing the specs of your current PC. If this issue is happening to some but not all, then what do we all have in common? Is it a Windows version? I don't think so as I've seen people with Windows 10 facing the same problem. Is it same processor? Same GPU? Same Driver version? BIOS version?

Some have stated that the issue is the power strip\power brick. For some it may, perhaps the desk PC's HDMI port is withdrawing more power and its making something happen that resets the handshake. However, I have a laptop, and the issue persist, so perhaps that not the main cause. Some also are facing the issue with dual monitors, I have only tried with one monitor at a time, basically telling us that the issue is not unique on dual monitor setups.

I have not seen any event logs happening for when the issue is happening. I've also found that some monitors do depicts the issue in faster intervals than others. In my troubleshooting steps, I found that one monitor could take minutes until it flickers, other won't even display any image. Other would flicker constantly.

I have tried (As mentioned before) running a LIVE USB flash drive with Ubuntu on it to determine if the issue is hardware or software. Lo-and-behold the issue was gone when I booted out of the USB flash drive. No flickering on any of the monitors. Okay, so this tells us that Windows is the issue. I have a feeling that we all experience the same issue with Windows, so we are getting closer.

Now that we may have something in common 'Windows' in this case, then what is making us fall apart from other people? That what we need to start working on. As a user mentioned, perhaps the issue is with the KERNEL itself. Question is, what is the culprit? Is it a bug, is it a configuration we all have?

I can tell something for sure, and perhaps most people will agree with me. The issue seems to be based on the refresh rate. I feel that playing around with the refresh rate of the external monitor does something on how the issue acts upon (ie flickers more ofter, screen goes black completely). While writing this, I have my 5th external monitor (Asus) plugged to my laptop, both set to 60hz. On the 5th monitor, I waited around 10 minutes until the first flicker happened, thereafter the intervals are really spacious, yet the issue is there. So it may depend what monitor brand we are using. Unfortuntately, for me, changing the refresh rate doesn't fixt it fully.

I have yet to try with a USB-C to HDMI or DisplayPort. It seems that the issue is only with HDMI. Again, we need to find the trigger? Is is a handshake related issue? If so, how can we know? Is there anyone here who has the expertise in check this handshake? Unfortunately, for some even downgrading didn't do the trick, so it seems that is not a driver issue. If it was to be a Driver issue, then the problem would have been solved already.

How can we raise this issue to Microsoft? I feel that before doing that, we need to find what is causing the flickering on our monitors so that Microsoft can simply fix it (I have doubts do).

Please if you are reading this, help us pinpoint the issue. We have to combine forces to find out the why is this occurring to us! I know that if we all work together, we should be able to find the culprit. Or at least find a solutions to this.

Mine started doing this after I updated my nvidia drivers this morning to 522.22

What Nvidia spec you have?

I concur, reducing refresh rate (to 50hz from 60hz in my case) appears to have worked, so far........