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Getting P3D to not CTD when LNM Started

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On my PC I have a primary Monitor, (#1),  connected to a 6 GiB video card, & a secondary Monitor, (#2),  connected to a 2 GiB video card.

The Monitor & card allocations are set up via Nvidia Control Panel.
The Little NavMap, (LNM), icon is set up on the #2 card/monitor.

P3D v5.3 HF2, (P3D),  is set up on the #1 card & monitor


I am experiencing problems with P3D & Little NavMap interaction . LNM is up to date.

I have tried various combinations of opening one first, then the other.

If I open & run P3D, then start LNM with Auto Connect enabled, P3D CTD when LNM opens up.
If I have them both open, with LNM Tools/Flight Simulator Connection, 'Disconnected', when I 'Connect' LNM, it causes P3D to CTD.


At the moment P3D won't run properly if LNM is open, yet before I went to 2 Video cards & monitors, I could have them both running on 1 monitor, & as long as I didn't ALT + TAB between them, they worked.
So it could be to do with running 2 cards/2 monitors.

Any suggestions as to how to fix this would be appreciated.

LNM is a stellar product & I would like to get it running in harmony with P3D.

T45
 

Uh-oh.This is hard to diagnose so I have to shoot in the dark. What you can try:

  1. Do not use P3D fullscreen on the monitor but windowed mode with a Borderless tool just in case this is some kind of graphics conflict (due to two monitors or GPUs).
  2. Do not override settings in the Nvidia (or AMD) options globally. Override graphics settings (like Anti-aliasing or whatever) only for the sim.
  3. Delete/rename the SimConnect.dll in the Little Navmap folder. LNM will try to fall back to the one installed in the system just in case this is a SimConnect issue.
  4. Disable transfer of AI vehicles in the LNM connection dialog.
  5. Put LNM on a networked computer/laptop if Little Navconnect does not cause any issues when connecting.
  6. Do not use the second GPU but attach the second monitor to the first one (if doable).

Alex
 

 

  • Author

Alex

Thanks for responding so quickly.

I will work through your suggestions.

I use SimStarter to manage the P3D scenery, but not to Start P3D.

While doing further testing, after P3D had CTD on Monitor #1 when LNM was 'Connected', I ran Simstarter & it said that P3D was still running , [in the background, I assume, but it was not appearing on screen].

Attempts to restart P3D after a CTD, [but without using SimStarter to fully shut P3D down],  resulted in it 'Starting' part way through Scenario Setup, then CTD at 100% loaded, on Monitor/video Card #1.

T45

 

  • Author

Alex

Some feedback.

Numbering per your post above.

#1 to #4: No change, still CTD when LNM connects to an opened P3D flight. As soon as I click on LNM on #2 monitor, #1 monitor activity Pauses & then CTD after LNM Connects. Something in the way LNM connects to P3D may be the issue.

I don't use FSUIPC. Should that be used?

#5: Will try .

#6: Unfortunately #1 GPU has only 1 outlet.

T45

 

 

Edited by Treetops45

  • Author

Final feedback for today.

I disconnected Monitor #2 & put LNM back on Monitor & Card #1, which was my original set up.

& it works ok.

I can ALT + TAB between a P3D v5.3 HF2 flight & LNM.

When I bring up the LNM screen, P3D pauses, but it always did that.

I would like to get LNM on the 2nd monitor happily working with P3D on #1, but in the mean time this lets me at least fly in P3D & also check LNM.

Thanks for your assistance.

T45

 

  • Author
Just now, Treetops45 said:

Final feedback for today.

I disconnected Monitor #2 & put LNM back on Monitor & Card #1, which was my original set up.

& it works ok.

I can ALT + TAB between a P3D v5.3 HF2 flight & LNM without P3D CTD.

When I bring up the LNM screen, P3D pauses, but it always did that.

I would like to get LNM on the 2nd monitor happily working with P3D on #1, but in the mean time this lets me at least fly in P3D & also check LNM.

Thanks for your assistance.

T45

 

 

Hi 

As for P3D pausing on alt-tab, that is easily cured. In P3D settings, you will find "Pause on Task Switch" or something like that.

Turn that off.

Who knows, it might even cure your original problem. 

Brgds Sven Sorensen, EKCH

 

 

Sorry, that I can't help much. At least it is working on one screen.

LNM does not use FSUIPC and also does not need a SimConnect installation.

Two more things:
- Check if you have any SimConnect.ini / .xml / .cfg files around in your home folder and sub-folders. These can break connectivity and all kinds of other stuff.
- Open a browser on the second monitor and show the LNM web interface there. Then you don't have to switch to see the map.

Alex

  • Author
9 hours ago, svenks said:

Hi 

As for P3D pausing on alt-tab, that is easily cured. In P3D settings, you will find "Pause on Task Switch" or something like that.

Turn that off.

Who knows, it might even cure your original problem. 

Brgds Sven Sorensen, EKCH

 

 

Thank you Sven

That worked as regards eliminating the ALT + TAB pause.

Haven't had time to test if it fixes the 2 monitor CTD situation.

You will hear if it does!😀

T45

  • Author
1 hour ago, albar965 said:

Sorry, that I can't help much. At least it is working on one screen.

LNM does not use FSUIPC and also does not need a SimConnect installation.

Two more things:
- Check if you have any SimConnect.ini / .xml / .cfg files around in your home folder and sub-folders. These can break connectivity and all kinds of other stuff.
- Open a browser on the second monitor and show the LNM web interface there. Then you don't have to switch to see the map.

Alex

Thanks Alex

If I figure this out I will let you know.

Cheers

T45

  • Author
23 hours ago, albar965 said:

Sorry, that I can't help much. At least it is working on one screen.

LNM does not use FSUIPC and also does not need a SimConnect installation.

Two more things:
- Check if you have any SimConnect.ini / .xml / .cfg files around in your home folder and sub-folders. These can break connectivity and all kinds of other stuff.
- Open a browser on the second monitor and show the LNM web interface there. Then you don't have to switch to see the map.

Alex

I have MSFS on P:\MSFS & it is working fine with MSFS on #1 card & monitor, & LNM on #2.

I have P3D on S:\LockheedMartin\Simobjects\Aircraft

I searched the Lockheed Martin folder for simconnect & came up with about 20 entries of various types, some of which started with Microsoft.Flight.Simulator, which suggests to me that I may have a P3D to LNM simconnect issue. I suspect that the Microsoft.Flight.Simulator entries should not be there as MSFS is on the P drive.

If I have P3D flight set up at an airfield, then open LNM, then "Connect", when I move the mouse arrow back to the P3D #1 Monitor it turns into the 'swirling' circle which usually means wait while a task is happening, then #1 screen fades with the "Wait" or "Close Down" message, then it CTD's. Takes about 8 seconds. The problem is triggered by trying to "Connect" LNM to P3D

Is there any way I can trouble shoot/clean up the P3D simconnect?

T45

Edited by Treetops45

  • Author

Alex, Sven

Further to the above, I now have P3D & LNM coexisting. The former on Card & Monitor #1 & the latter on #2 .

As far as I can tell, the only tweak today was to track  down a 'Pause on Task' tick box in Simstarter that was overriding the unticked box in P3D, & clearing it. 

The routine that is now working is to open LNM 1st, [making sure Auto Connect is off],  & then create a flight plan & export it to a P3D Plans folder.

After that I open P3D, run through the Scenario Setup & load the plan that was prepared in LNM. After I hit  'Go' in P3D & when the aircraft is positioned at the departure point, I then click 'Connect' in LNM & so far they are joining up ok & P3D no longer CTD's .

Thank you both for your help.

T45

 

  • Author
3 hours ago, albar965 said:

You're welcome and thanks for the feedback. This might help others with similar problems.

Alex

My apologies Alex, I was too hasty.

I got 2 flights in late yesterday with no CTD & thought I had it solved.

Unfortunately 2 more flights in the evening & this morning were CTD on LNM Connection events.

The common denominator in all the CTD's is it happens when I have P3D & LNM open & then hit hit the LNM 'Connect' button.

What mechanisms are in play when the Connect button is hit? 

How does LNM communicate with P3D? (I think you said it doesn't need Simconnect)

I sense that is where the issue may be.

Thank you

T45

PS: I should have included that the P3D CTD when LNM Connects is also happening when both P3D & LNM are run through Video Card 1 & Monitor 1. ie, when only 1 Card & Monitor being used, as well as when both cards & monitors are employed.

Edited by Treetops45

LNM uses SimConnect but not the library which is installed in the system. It comes with a copy of the FSX SimConnect.dll for compatibility. This DLL is even used when connecting to MSFS. You can delete it and LNM will try to use the system installed SimConnect library.

Alex

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This topic is now archived and is closed to further replies.

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