Windows 2012 virtual server and DX11BACKEND.DLL issues

I've been looking or solutions to running DCS 1.5 on a Windows 2012 R2 virtual server that is crashing with dx11backend.dll errors. I also tried Windows 2008 but no luck.

It seem like one out of 100 tries I get to the menu screen.

I can run 1.2 with no problems. I can also run DCS 1.5 from a headless system from my house with no problems (but that system has a Geforce video card).

Any particular settings I need/should be aware of when using a Windows 2012 R2 server?

I also tried setting everything to lowest settings on the home pc and copy those settings over to the virtual server.

I have the following settings in the autoexec.cfg.

options.graphics.render3D = false

Thanks for the fast response!!

Xen virtual host. (VPS rental from NFOServer)

Windows 2012 R2

Quad CPU cores

6144 MB of RAM

400 GB of storage

DX11.2 drivers

No dedicated video card but it runs DCS 1.2 with no issues, when I set render3D to false.

I was thinking of trying Windows 2012 (Non-R2) being that one has DX11.1

It works fine on 2012R2 for me. Have you installed Visual C++ Redistributable 2013? Any other year will not work.

I have Visual C++ Redistributable 2013 installed.

Do you add any Roles or Services via Server Manager?

.NET 3.5 but that is because some other tools.

PS! Don't use RDP! Use TightVNC to connect direct to desktop.

Thanks for the follow ups!

I was trying with both TightVNC and RDP. I'm going to do a fresh 2012 R2 install.

What visualization software are you using? Is the server hosted in a data center?

What visualization software are you using? Is the server hosted in a data center?

It is a Virtual Private Server I am renting from NFOServer.com. (I normally use it for ARMA 3, IL-2, and rise of Flight)

Not sure what you mean bu visualization software. If you are talking how I access the server normally it is via TightVNC.

Goose, we've had the same issues trying to get Virtual Aerobatics going again too on 1.5. Works well on 1.2. I'll try other remote tools as was suggested above but no luck getting it going. We've closely followed the posts on C++, DirectX, memory leak issues and are still having a hard time.

EDIT: TightVNC made no difference. All 8 processors max out at nearly 100% during splash screen load while memory is barely utilized.

All 8 processors max out at nearly 100% during splash screen load while memory is barely utilized.

That is because you have not set the Render3D - Disabled properly. Search for "autoexec.cfg render3d" in this forum :thumbup:

options.graphics.render3D = false

That too has been done sir. Thanks for the feedback though.

Hijack,

So I've tried to put the AutoExec.cfg in these locations:

- C:\Program Files\Eagle Dynamics\DCS World OpenBeta\Config

- C:\Users\[WinUser]\Saved Games\DCS.openbeta\Config per the graphics_readme.txt

I've also tried to put it in this file:

- C:\Program Files\Eagle Dynamics\DCS World OpenBeta\Config\graphics.lua

Regardless of where I've tried to locate the AutoExec I'm still getting DX11 errors in the logs (attached).

Similar to Goosemilk, we're on Server 2012, but have 32 Gig RAM and newer system specs.

Also on C++ 2013 and have run repair on that between app crashes. Also have the .NET stuff activated in Server Manager.

DCS.LOG:

=== Log opened UTC 2015-11-13 18:58:55
00000.000 INFO    VFS: Using 'Saved Games': "C:\Users\Administrator\Saved Games"
00000.001 INFO    DCS: DCS/1.5.1.46722 (x86_64; Windows/6.2.9200)
00000.001 INFO    DCS: CPU cores: 4, System RAM: 32665 MB
00000.006 INFO    EDCORE: (dDispatcher)enterToState_:0
00000.014 INFO    Dispatcher: 2015/11/13 19:58 V1508170900
00000.018 INFO    INPUT: Device created Keyboard
00000.253 INFO    SOUND: loaded 1069 sdefs from "sounds\sdef"
00000.344 INFO    SOUND: XAudio2: Using device ID:'择꺪롸' Name:'䏰ʕ', channels: 0
00000.344 INFO    SOUND: XAudio2: channel layout:
00000.344 ERROR   SOUND: XAudio2: can't create MasteringVoice
00000.344 ERROR   SOUND: XAudio2: not started
00000.344 ERROR   SOUND: can't start renderer
00000.762 ERROR   VFS: Can't mount './CoreMods/WWII Units/Liveries' to '/textures//liveries/'.
00000.769 ERROR   VFS: Can't mount './CoreMods/aircraft/Hawk/Textures/Avionics' to '/textures/'.
00000.775 INFO    SOUND: loaded 10 sdefs from ".\coremods\aircraft\mig-21bis\sounds\sdef"
00000.827 INFO    DXRENDERER: Creating Resource "Unicode" of type 5
00000.830 INFO    DX11BACKEND: TRUNK renderer init: showShaderError coreCount=1
00000.831 INFO    DX11BACKEND: Driver Concurrent Creates - 0
00000.831 INFO    DX11BACKEND: Driver Command Lists - 0
00000.833 INFO    DX11BACKEND: DX11ShaderBinaries::loadShaders
00001.874 INFO    DX11BACKEND: DX11ShaderBinaries::loadShaders finished
00001.973 ERROR   VFS: Can't mount './Bazar/World/textures/L-39_C' to '/textures/'.
00002.020 INFO    RENDERER: Loading metashader cache from C:\Users\Administrator\Saved Games\DCS.openbeta\metashaders/
00002.020 INFO    RENDERER: Metashader cache: 0 (0) cached shaders out of date

DUMP:

http://www.dawnslechta.com/steve/DCS.openbeta-Crash-20151113-185816.dmp

DCS.openbeta-20151113-185815.crash.txt

The autoexec.cfg file must go here:

C:\Users\[WinUser]\Saved Games\DCS.openbeta\Config\

And to be sure. You are not editing .lua or .cfg files with Windows Notepad? You must use Notepad++ or a Programmers Editor.

HiJack I sent PM, not sure if it went through.

Yes, I got it. I made the server work for you know. Have fun :D

Hey Hijack.

Attached pic shows the editor, file location, and contents of the config file.

Updated to the patch released yesterday and still having the crash issues when all 8 CPUs max out on splash screen at startup.

Attached DCS.Log, CRASH, DMP, DX DIAG.

Check out the "Diagnostics" portion of the DX Diag. Still a lot of DX11 errors from dx11backend.dll even with the newest patch.

DCS.LOG

=== Log opened UTC 2015-11-14 15:13:14
00000.000 INFO    VFS: Using 'Saved Games': "C:\Users\###########\Saved Games"
00000.057 INFO    DCS: DCS/1.5.1.47025 (x86_64; Windows/6.2.9200)
00000.057 INFO    DCS: CPU cores: 4, System RAM: 32665 MB
00000.351 INFO    EDCORE: (dDispatcher)enterToState_:0
00000.565 INFO    Dispatcher: 2015/11/14 16:13 V1508170900
00000.617 INFO    INPUT: Device created Keyboard
00001.355 INFO    SOUND: loaded 1069 sdefs from "sounds\sdef"
00001.600 INFO    SOUND: XAudio2: Using device ID:'渥阘ꄜ' Name:'䏰ȿ', channels: 0
00001.600 INFO    SOUND: XAudio2: channel layout:
00001.600 ERROR   SOUND: XAudio2: can't create MasteringVoice
00001.600 ERROR   SOUND: XAudio2: not started
00001.600 ERROR   SOUND: can't start renderer
00004.609 ERROR   VFS: Can't mount './CoreMods/WWII Units/Liveries' to '/textures//liveries/'.
00004.731 ERROR   VFS: Can't mount './CoreMods/aircraft/Hawk/Textures/Avionics' to '/textures/'.
00004.847 INFO    SOUND: loaded 10 sdefs from ".\coremods\aircraft\mig-21bis\sounds\sdef"
00005.417 INFO    DXRENDERER: Creating Resource "Unicode" of type 5
00005.653 INFO    DX11BACKEND: TRUNK renderer init: showShaderError coreCount=1
00005.665 INFO    DX11BACKEND: Driver Concurrent Creates - 0
00005.665 INFO    DX11BACKEND: Driver Command Lists - 0
00005.714 INFO    DX11BACKEND: DX11ShaderBinaries::loadShaders
00016.171 INFO    DX11BACKEND: DX11ShaderBinaries::loadShaders finished
00017.707 ERROR   VFS: Can't mount './Bazar/World/textures/L-39_C' to '/textures/'.
00018.054 INFO    RENDERER: Loading metashader cache from C:\Users\Administrator\Saved Games\DCS.openbeta\metashaders/
00018.064 INFO    RENDERER: Metashader cache: 0 (0) cached shaders out of date
00084.311 ERROR   DX11BACKEND: Shader "enlight/sun.fx:DIRECTX11=true;" failed to create.
00084.353 INFO    DCS: try to write dump information
00084.423 INFO    EDCORE: # -------------- 20151114-151438 --------------
00084.455 INFO    EDCORE:  
00084.490 INFO    EDCORE: # C0000005 ACCESS_VIOLATION at A6CA1A17 00:00000000
00084.555 INFO    EDCORE: 00000000 00000000 0000:00000000 
00084.815 INFO    EDCORE: A6CA1A17 0085EC80 0000:00000000  ??1DX11Renderer@RenderAPI@@QEAA@XZ()+34E57
00084.856 INFO    EDCORE: A6CAB24B 0085ECE0 0000:00000000  ?createFrameBuffer@DX11Renderer@RenderAPI@@UEAA?AV?$Ptr@UIFrameBuffer@RenderAPI@@UDeleter@12@@ed@@AEBV?$vector@V?$Ptr@UITexture@RenderAPI@@UDeleter@12@@ed@@V?$allocator@V?$Ptr@UITexture@RenderAPI@@UDeleter@12@@ed@@@2@@4@V?$Ptr@UITexture@RenderAPI@@UDeleter@12@@4@@Z()+5B
00084.956 INFO    EDCORE: A3831D04 0085EDA0 0000:00000000  ??0MaterialParams@enlight@@QEAA@XZ()+B44
00084.996 INFO    EDCORE: A38336C1 0085EF20 0000:00000000  ??0MaterialParams@enlight@@QEAA@XZ()+2501
00085.198 INFO    EDCORE: A3835AC7 0085EF60 0000:00000000  ??0MaterialParams@enlight@@QEAA@XZ()+4907
00085.396 INFO    EDCORE: A4255936 0085F050 0000:00000000  ??0SceneManager_Implement@@QEAA@XZ()+9F6
00085.589 INFO    EDCORE: A426129A 0085F090 0000:00000000  ?CreateSceneManager@smSceneManager@@SAXXZ()+2A
00085.630 INFO    EDCORE: 0BC9EC9B 0085F170 0000:00000000 
00085.681 INFO    EDCORE: 0BC9DEF9 0085F1F0 0000:00000000 
00085.913 INFO    EDCORE: 0BD625B1 0085F8A0 0000:00000000 
00086.114 INFO    EDCORE: 0BD65785 0085F8E0 0000:00000000 
00086.205 INFO    EDCORE: BE5E13D2 0085F910 0000:00000000  BaseThreadInitThunk()+22
00086.248 INFO    EDCORE: C0035454 0085F960 0000:00000000  RtlUserThreadStart()+34
00088.106 INFO    EDCORE: Minidump created.
00088.106 INFO    DCS: try to write track file

DX DIAG:

------------------
System Information
------------------
Time of this report: 11/14/2015, 17:03:43
Operating System: Windows Server 2012 R2 Standard 64-bit (6.3, Build 9600) (9600.winblue_ltsb.151014-0600)
          Language: English (Regional Setting: English)
System Manufacturer: Supermicro
      System Model: Super Server
              BIOS: BIOS Date: 09/09/15 20:33:20 Ver: 05.0000A
         Processor: Intel(R) Xeon(R) CPU D-1520 @ 2.20GHz (8 CPUs), ~2.2GHz
            Memory: 32768MB RAM
Available OS Memory: 32666MB RAM
         Page File: 1173MB used, 35587MB available
       Windows Dir: C:\Windows
   DirectX Version: DirectX 11
DX Setup Parameters: Not found
  User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
   DWM DPI Scaling: Disabled
    DxDiag Version: 6.03.9600.17415 64bit Unicode
------------
DxDiag Notes
------------
     Display Tab 1: No problems found.
       Sound Tab 1: This computer cannot play audio because the Windows Audio service is not enabled.  Use the Sounds and Devices Properties control panel to enable audio. No sound card was found.  If one is expected, you should install a sound driver provided by the hardware manufacturer.
         Input Tab: No problems found.
--------------------
DirectX Debug Levels
--------------------
Direct3D:    0/4 (retail)
DirectDraw:  0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay:  0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow:  0/6 (retail)
---------------
Display Devices
---------------
         Card name: RDPUDD Chained DD
      Manufacturer: 
         Chip type: 
          DAC type: 
       Device Type: n/a
        Device Key: Enum\ROOT\BASICRENDER
    Display Memory: n/a
  Dedicated Memory: n/a
     Shared Memory: n/a
      Current Mode: 1440 x 900 (32 bit) (32Hz)
       Driver Name: 
Driver File Version:  ()
    Driver Version: 
       DDI Version: 9Ex
    Feature Levels: 
      Driver Model: 
Graphics Preemption: 
Compute Preemption: 
          Miracast: 
Hybrid Graphics GPU: 
    Power P-states: 
 Driver Attributes: Final Retail
  Driver Date/Size: , 0 bytes
       WHQL Logo'd: n/a
   WHQL Date Stamp: n/a
 Device Identifier: {D7B71AF4-43CC-11CF-B727-8005ACC2CB35}
         Vendor ID: 0x1414
         Device ID: 0x008C
         SubSys ID: 0x00000000
       Revision ID: 0x0000
Driver Strong Name: 
    Rank Of Driver: 
       Video Accel: 
       DXVA2 Modes: 
     Deinterlace Caps: n/a
      D3D9 Overlay: Not Supported
           DXVA-HD: Not Supported
      DDraw Status: Not Available
        D3D Status: Enabled
        AGP Status: Not Available
-------------
Sound Devices
-------------
           Description: 
Default Sound Playback: No
Default Voice Playback: No
           Hardware ID: 
       Manufacturer ID: 
            Product ID: 
                  Type: 
           Driver Name: 
        Driver Version: 
     Driver Attributes: 
           WHQL Logo'd: 
         Date and Size: 
           Other Files: 
       Driver Provider: 
        HW Accel Level: Emulation Only
             Cap Flags: 0x0
   Min/Max Sample Rate: 0, 0
Static/Strm HW Mix Bufs: 0, 0
Static/Strm HW 3D Bufs: 0, 0
             HW Memory: 0
      Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
  I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No
---------------------
Sound Capture Devices
---------------------
---------------------
Video Capture Devices
Error happened during getting video capture device info
---------------------
-------------------
DirectInput Devices
-------------------
     Device Name: Mouse
        Attached: 1
   Controller ID: n/a
Vendor/Product ID: n/a
       FF Driver: n/a
      Device Name: Keyboard
        Attached: 1
   Controller ID: n/a
Vendor/Product ID: n/a
       FF Driver: n/a
Poll w/ Interrupt: No
---------------
Diagnostics
---------------
Windows Error Reporting:
+++ WER0 +++:
Fault bucket 120355637748, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0
 
Problem signature:
P1: DCS.exe
P2: 1.5.1.47025
P3: 56461bfe
P4: dx11backend.dll
P5: 1.5.1.47025
P6: 56336032
P7: c0000005
P8: 0000000000041a17
P9: 
P10: 
 

+++ WER1 +++:
Fault bucket 120351938181, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0
 
Problem signature:
P1: DCS.exe
P2: 1.5.1.46722
P3: 563d1457
P4: dx11backend.dll
P5: 1.5.1.46722
P6: 56336032
P7: c0000005
P8: 0000000000041a17
P9: 
P10: 
 

+++ WER2 +++:
Fault bucket 120351938181, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0
 
Problem signature:
P1: DCS.exe
P2: 1.5.1.46722
P3: 563d1457
P4: dx11backend.dll
P5: 1.5.1.46722
P6: 56336032
P7: c0000005
P8: 0000000000041a17
P9: 
P10: 
 

+++ WER3 +++:
Fault bucket , type 0
Event Name: PDUWICA
Response: Not available
Cab Id: 0
 
Problem signature:
P1: 7
P2: 1.6
P3: 6.3.0.0
P4: 1033
P5: 14
P6: 
P7: 
P8: 
P9: 
P10: 
 

+++ WER4 +++:
Fault bucket 120351938181, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0
 
Problem signature:
P1: DCS.exe
P2: 1.5.1.46722
P3: 563d1457
P4: dx11backend.dll
P5: 1.5.1.46722
P6: 56336032
P7: c0000005
P8: 0000000000041a17
P9: 
P10: 
 

+++ WER5 +++:
Fault bucket 120351938181, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0
 
Problem signature:
P1: DCS.exe
P2: 1.5.1.46722
P3: 563d1457
P4: dx11backend.dll
P5: 1.5.1.46722
P6: 56336032
P7: c0000005
P8: 0000000000041a17
P9: 
P10: 
 

+++ WER6 +++:
Fault bucket 120351938181, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0
 
Problem signature:
P1: DCS.exe
P2: 1.5.1.46722
P3: 563d1457
P4: dx11backend.dll
P5: 1.5.1.46722
P6: 56336032
P7: c0000005
P8: 0000000000041a17
P9: 
P10: 
 

+++ WER7 +++:
Fault bucket 120351938181, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0
 
Problem signature:
P1: DCS.exe
P2: 1.5.1.46722
P3: 563d1457
P4: dx11backend.dll
P5: 1.5.1.46722
P6: 56336032
P7: c0000005
P8: 0000000000041a17
P9: 
P10: 
 

+++ WER8 +++:
Fault bucket 120351938181, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0
 
Problem signature:
P1: DCS.exe
P2: 1.5.1.46722
P3: 563d1457
P4: dx11backend.dll
P5: 1.5.1.46722
P6: 56336032
P7: c0000005
P8: 0000000000041a17
P9: 
P10: 
 

+++ WER9 +++:
Fault bucket 120351938181, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0
 
Problem signature:
P1: DCS.exe
P2: 1.5.1.46722
P3: 563d1457
P4: dx11backend.dll
P5: 1.5.1.46722
P6: 56336032
P7: c0000005
P8: 0000000000041a17
P9: 
P10: 

Attached CRASH and DMP and added .txt extension to allow attachment.

DCS.openbeta-20151114-151438.crash.txt

DCS.openbeta-Crash-20151114-151440.dmp.txt

I wasn't able to login, DCS would refresh the screen then crash. DX11Backend issue returned. I was able to get back to the DCS login after a DX reinstall from the dist folder, but when I clicked to log in it start going back and forth to splash screen and login screen until I had to finally close it out. Could be something related to the splash/login screen and the way my server is configure from NFOServers.

Below seem to only error that is repeated:

00072.471 ERROR DX11BACKEND: Shader "enlight/sun.fx:DIRECTX11=true;" failed to create.

This erro is in sslechta logs too

I dont know if you guys have the same problem as i had...

My DCS 1.5 crashed after the splash screen or it just stayed on black screen.. (with a Sapphire HD5450 DX11 card)

Then i searched on google and found a trick to solve the problem,

You can increase the GPU processing time by adjusting the Timeout Detection and Recovery registry value. However, you should do it carefully, because any mistake can cause conflicts. Here is how:

1. Exit all Windows based programs.

2. Go to Start and type regedit in the Search box. In the results, double-click regedit.exe.

3. Browse to and then click "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers".

4. Click New in the Edit menu list. From the drop-down menu, select DWORD (32-bit) value. Then type TdrDelay as the Name and click Enter. Double-click TdrDelay, add 8 for the Value data and click OK.

After all these done, reboot your computer.

Hey Falcon. In our cases we are using servers. I'm not sure if that registry value would still be valid or not on server 2012. What OS are you using?

I tried the registry value on Server 2008 R2, server 2012 R2, windows 10. But im now using windows 7 as base OS.. It worked on all

(using HP Elite 8000 SFF as server)

Falcon, thanks for the info. The key entry extended the time the splash screen stays on and kept it from crashing but it just hangs there indefinitely now. I get a real brief main menu then the splash screen comes back and stays on. During the whole process all the CPUs are just maxed out.

I may play around tomorrow with lowering that registry value down to 5 seconds and see if that helps at all.

Hopefully ED is looking at the DX11 issues.

That is what I get when I don't get the immediate DX11backend crash.

Goes to menu, back to splash, to menu, back to splash and usually stays on splash screen.