[How to] Multi monitor MFCD display export set-up guide - Nov 2024 (updated)

[MAXsenna]

Thanks! 
Fixed that, still the same deal. I'm throwing in my options file too, because there's something funky somewhere. 
It's almost like the second monitor is in VR or something, with how it's rendering in a stereoscopic view. Plus the viewports for the MFCDs aren't changing size at all when I adjust the dimensions.
 
options.lua

Yeah, that was my initial impression. You don't have anything in any autoexec file, or the syntax in the startup, or have selected VR by chance in the Launcher?

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[tspencer227]

12 hours ago, MAXsenna said:

Yeah, that was my initial impression. You don't have anything in any autoexec file, or the syntax in the startup, or have selected VR by chance in the Launcher?

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None of the above that I'm seeing, and even added --force_disable_VR to the end of the properties for my shortcut. 

Still the same thing. I've NEVER experienced anything like this.

 

[MAXsenna]

None of the above that I'm seeing, and even added --force_disable_VR to the end of the properties for my shortcut. 
Still the same thing. I've NEVER experienced anything like this.
 

What happens if you choose the single or triple screen setup? I assume Windows is not set to duplicate the displays?

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[jonsky7]

13 hours ago, tspencer227 said:

None of the above that I'm seeing, and even added --force_disable_VR to the end of the properties for my shortcut. 

Still the same thing. I've NEVER experienced anything like this.

 

I personally ran the config file I named spencer.lua on my machine and it worked as intended, did you try that specific file?

From your options file it says
["multiMonitorSetup"] = "new screen mfd under",

Which is the filename of the config file you are currently using. Which is not the one I made for you obviously.

Resolution from your options looks fine.
I would perhaps turn off DLSS upscaling until we have it working, just a thought.

I see you are using the launcher, have you verified any changes made in the settings menu of the game? To be clear, I mean the actual game menu screen.
Little cog wheel on the top left? (sorry if I'm teaching you how to suck eggs here)

null

Have you tried just renaming your entire DCS Saved Games folder? 
DCS will make a new one on launch, you will have to set the resolution and config file again. This will ensure nothing else in the saved games folder is interfering with it. 
Once established working, you can copy files from the renamed folder across to the newly created one, and see if the problem re-appears.

I have to ask, have you checked the display settings in windows? Does your setup work as intended while at the desktop? You can open something like file explorer and drag it onto the lower screen etc? 

From your earlier screenshot, the lower screen does NOT look stereoscopic to me, just a duplicate. In a stereoscopic image there is a difference in perspective to generate images for your left and right eye. I looked at the joystick against the map, they look identical to me.

 

Edited Saturday at 04:56 PM by jonsky7

[tspencer227]

On 10/25/2025 at 12:51 PM, jonsky7 said:

From your options file it says
["multiMonitorSetup"] = "new screen mfd under",

Which is the filename of the config file you are currently using. Which is not the one I made for you obviously.

This was it right here- just saw that in the options, and apparently it was driving a different setup file.

 

Thank you!

[tspencer227]

Success! Thank you to everybody who helped out!

[MAXsenna]

Success! Thank you to everybody who helped out!

That's great! Now I'm really curious about what file you used, and what it contains!

There's a reason why I'm using Helios as a helper, and if I have issues, @jonsky7 is my goto guy!

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[jonsky7]

36 minutes ago, tspencer227 said:

Success! Thank you to everybody who helped out!

Glad you got it sorted