Any way to disable Windows Simulated display?

Hello everyone.....

where I live there are many electricity power fluctuations, and every time my monitor (Gigabyte GS32QC with FreeSync capability) turns off then on, I find that windows has switched briefly to a simulated monitor (with ridiculously low resolution) then returns to my actual monitor. this behavior causes problems for some games (especially those running Fullscreen exclusive mode) some suffer severe stuttering, and some even stop working. I managed to fix the low resolution of the simulted monitor, by making it the same as my actual display (done by editing values found in the key that have "Simulaed" in its name, found under "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers\Configuration")
this alleviated some of the issues, but there are still some games affected by it.

I suspect this behavior has something to do with Variable Refresh Rate (because my old non-VRR monitor didn't suffer from such problems), but I don't want to disable VRR (supposing that may solve my problem).........is there any method to disable this behavior in Windows ?



p.s. : my old monitor used HDMI 2.0 connection, while my current monitor is connected using Display Port 1.4

Wouldn't an uninterupted power supply solve your power fluctuating issue? They come in all prices.
Amazon.com

glasskuter said:

Wouldn't an uninterupted power supply solve your power fluctuating issue? They come in all prices.
Amazon.com

Amazon.com

Click to expand...

I already have it attached to a 1500 VA UPS but for some reason the monitor still turns off when the fluctuation happens...I wanted to see if there is a software solution before considering changing the UPS (it is supposed to be one of the best options available, not that there are many, though).

also, I noticed that this behavior of windows happens whenever the screen turns off (like for saving power), so it would be nice to eliminate this behavior completely.

AsadAlrafidain said:

I already have it attached to a 1500 VA UPS but for some reason the monitor still turns off when the fluctuation happens

Click to expand...

This may sound like a silly question, but are you sure that the monitor is also connected to the UPS? If it is, there should be no reason why a power outage
would affect either the PC or the monitor.

NOTE: Many UPS systems have some outlets that do not get powered by the battery. Make sure that the monitor is also plugged into a port specifically protected against power outage and not an unprotected port.

As for you observation regarding HDMI vs DP, that is one of the rare cases where I like HDMI better than DP. While I don't know the details, I recall reading a few months ago that there was some limitation of DP reconnecting once the monitor is seen as disconnected. I'll see if I can find the details, but I can't help but think that this may be part of the issue. However, I am still confused by why this would ever happen if the monitor was also powered by the UPS.

Follow-up: Here is brief summary of the issue:


I recall now that I ran into this when I was using a DisplayPort with an HDMI adapter. I have a KVM that is HDMI so I needed to adapt it to HDMI. The problem was that when I switched to another PC and came back to the one using DP, it would not reacquire the monitor. While DP is technically superior in many ways to HDMI, this is one annoying issue with DP.

@hsehestedt
even if switching to HDMI can solve the disconnecting problem, HDMI is still limited to 120 HZ, which introduces another issue (my monitor supports 165 HZ