[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?

Sent from my SM-A536B using Tapatalk
 

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 October 25 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 

[deepakvrao]

I did a search and found many potential solutions but nothing really worked. I just cannot get the 11520*2160 resolution for a 3 4k monitor setuop in any of the drop down menus, and nor am I able to manually enter it.

Not able to locate the options.lua file either.

Would appreciate any help guys.

[MAXsenna]

I did a search and found many potential solutions but nothing really worked. I just cannot get the 11520*2160 resolution for a 3 4k monitor setuop in any of the drop down menus, and nor am I able to manually enter it.

Not able to locate the options.lua file either.

Would appreciate any help guys.

You can manually punch in the resolution yourself.

Cheers!

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[deepakvrao]

1 hour ago, MAXsenna said:

You can manually punch in the resolution yourself.

Cheers!

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In the launcher or after the game starts? In the launcher I can't do it and after the game starts I don't see that as an option.

[Bigity]

Not in the launcher I don't think no. 

 

In-game, just click in the resolution field and start typing.

[MAXsenna]

In the launcher or after the game starts? In the launcher I can't do it and after the game starts I don't see that as an option.

Not tried in the Launcher. While in the game just type the resolution in. In doesn't look like one can do it. But one can actually. Well hidden secret.

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[GeoS72]

4 hours ago, deepakvrao said:

I did a search and found many potential solutions but nothing really worked. I just cannot get the 11520*2160 resolution for a 3 4k monitor setuop in any of the drop down menus, and nor am I able to manually enter it.

Not able to locate the options.lua file either.

Would appreciate any help guys.

I'm not sure this matters much, but do you use software settings through NVDIA to stitch those 3 monitors together? Did you also create a custom monitor lua file in the "main" DCS World\Config\MonitorSetup folder (not in the Saved Games folder)?

[jonsky7]

3 hours ago, deepakvrao said:

In the launcher or after the game starts? In the launcher I can't do it and after the game starts I don't see that as an option.

You CAN NOT manually type the resolution into the box in the DCS Launcher. 

You have to start the game fully to the fullscreen "Menu" screen, then go into the settings menu (COG Wheel)

Click in the resolution box, you will see the cursor appear, delete what is already in there and type your desired resolution

(Custom resolutions normally appear at the very bottom of the drop down list)

 

Custom resolutions normally appear at the very bottom of the drop down list

 

Then you have 2 option:
Select 1 Screen in the "monitors*" line - This will give you a wide screen view looking forward across your 3 monitors
or
3 Screens - will give you a 90deg LEFT view, a FWD view, and a 90Deg RIGHT view.


If you end up with a black bar down the right hand side, you have exceeded the maximum resolution DCS or your Graphics card can handle.
 

Edited November 17 by jonsky7

[deepakvrao]

8 hours ago, GeoS72 said:

I'm not sure this matters much, but do you use software settings through NVDIA to stitch those 3 monitors together? Did you also create a custom monitor lua file in the "main" DCS World\Config\MonitorSetup folder (not in the Saved Games folder)?

I uploaded a custom file I found on this forum called Hindsight_3monitor.lua but it doesn't show up in the drop down list like it supposedly should.

[GeoS72]

Where is that file located? Is it in the folder I mentioned above? If it's there then edit the file. Take a look at Line 2. It should read something like this:

name = _('Name_of_LUA_File');

Change that line to read whatever you like, e.g. name = _('Custom 3-Monitor');

I normally make the name (line 2) entry match the file name for ease of reference. Be sure to create a backup afterwards!

When you open the graphics setting from the loading screen or go into the Main Menu Settings, you should then be able to select the name you just created.

This is also a good time to verify your center viewport has the right settings.

On lines 6 through 14, you should see something like this:
 Center =
     {
          x = 0;
          y = 0;
          width = 2560;
          height = 1440;
          viewDx = 0;
          viewDy = 0;
          aspect = 2560 / 1440;

You may need to change the width, height, and aspect values to match your monitor configuration. For example:
width = 11520
height = 2160
aspect = 11520 / 2160;

Edited November 18 by GeoS72

[deepakvrao]

2 hours ago, GeoS72 said:

Where is that file located? Is it in the folder I mentioned above? If it's there then edit the file. Take a look at Line 2. It should read something like this:

 

Thanks. Will do that

11 hours ago, jonsky7 said:

You CAN NOT manually type the resolution into the box in the DCS Launcher. 


 

Thanks. I was trying to change resolution in the options tab AFTER launching the plane.

14 hours ago, MAXsenna said:

Not tried in the Launcher. While in the game just type the resolution in. In doesn't look like one can do it. But one can actually. Well hidden secret.

Sent from my SM-A536B using Tapatalk
 

Done

Thanks everyone. One issue still. I get these changes in colour in the middle of the side screens. Any idea why?

null

[Wrcknbckr]

2 hours ago, deepakvrao said:

Thanks everyone. One issue still. I get these changes in colour in the middle of the side screens. Any idea why?

 

That's the recently introduced visor. It doesn't stretch to the full width for multiple screens. It has been reported in bug and wish list several times now...

You can keep it in the up position if it bothers, however it is useful reading the HUD facing the sun

[deepakvrao]

Thanks guys. Amazing help I've got over here. 

Another issue though. I have plenty of monitors so I want the taskbar on the non game monitors. When DCS runs the center and the left monitors the taskbar is covered by the game but in the right monitor it still shows. Not a huge issue but an irritation.

Any easy solution without turning off multi monitor taskbars? Tried Display Fusion too and couldn't get what I needed.

[TheBiggerBass]

vor 9 Minuten schrieb deepakvrao:

Thanks guys. Amazing help I've got over here. 

Another issue though. I have plenty of monitors so I want the taskbar on the non game monitors. When DCS runs the center and the left monitors the taskbar is covered by the game but in the right monitor it still shows. Not a huge issue but an irritation.

Any easy solution without turning off multi monitor taskbars? Tried Display Fusion too and couldn't get what I needed.

You have an interesting pit. Are this 3 large beamer screens behind 3 monitors? Must be pretty impressive to fly.

[deepakvrao]

34 minutes ago, TheBiggerBass said:

You have an interesting pit. Are this 3 large beamer screens behind 3 monitors? Must be pretty impressive to fly.

Not sure what a beamer is but this is my rig. Used only for airliners and GA till now but want to get into DCS now.

Edited Tuesday at 03:36 PM by deepakvrao

[jonsky7]

2 hours ago, deepakvrao said:

Thanks guys. Amazing help I've got over here. 

Another issue though. I have plenty of monitors so I want the taskbar on the non game monitors. When DCS runs the center and the left monitors the taskbar is covered by the game but in the right monitor it still shows. Not a huge issue but an irritation.

Any easy solution without turning off multi monitor taskbars? Tried Display Fusion too and couldn't get what I needed.

 That is usually because one of the monitors is not perfectly aligned in Windows display settings.

In your case it is probably because the right monitor is sitting lower than the other two. Even if it is off by ONE pixel, then there is a line of pixels at the bottom of the monitor that DCS is not covering and so the taskbar shows.

If the right one won't SNAP into place, try moving the other two.

Example - exaggerated

Blue - DCS Resolution
White - Desktop.

Another workaround is to expand the vertical resolution in DCS settings, make it 2170 instead of 2160 for example. That will also cover all the screens fully with DCS "output" and make the taskbar disappear. 
As the individual Viewport settings won't be effected, what this does is really just send some empty space to the screens, (grey/gray below)

Blue + Grey - DCS resolution 
Blue - Viewports export (Left/Forward/Right views)
Grey - Empty resolution
No White showing any more.

Edited Tuesday at 04:59 PM by jonsky7

[TheBiggerBass]

vor 1 Stunde schrieb deepakvrao:

Not sure what a beamer is but this is my rig. Used only for airliners and GA till now but want to get into DCS now.

Wow, that's a monitor mania. What's the size of the 3 large screens?

Btw: beamers are projection units like this.

[deepakvrao]

12 hours ago, jonsky7 said:

 That is usually because one of the monitors is not perfectly aligned in Windows display settings.
 

Thanks so much. Appreciate it.

11 hours ago, TheBiggerBass said:

Wow, that's a monitor mania. What's the size of the 3 large screens?

Btw: beamers are projection units like this.

Ah, a projector? I have one for my golf simulator. 

My big screens are really cheap 55" 4k TVs. I live in India and paid about the equivalent of 320 Euros each.

Edited Wednesday at 04:38 AM by deepakvrao