DCS Crashes to desktop repeatedly, possible "DX11BACKEND"-related

[thinkerdreamer]

My specs: i7-8700, GTX 1080, 16gb RAM, game on SSD. Windows 10

 

When I load into the RIO seat on the F-14B, my game crashes to desktop. Sometimes right away as I click load, sometimes after a few minutes, sometimes later after playing a while, with seemingly no pattern. My computer does not crash in any other graphics-heavy game, such as RDR2. I haven't tried in any other planes. I use TrackIR, not VR.

 

Initially, I removed FXO and Metashaders folders. Then I did a clean reinstall, wiping both the game and the Saved Games folder. No luck.

 

Then I followed the steps in this guide, but after editing the registry, instead of crashing to the desktop, my computer would hard freeze and need to be forcibly restarted.

https://cdn.discordapp.com/attachmen...82/unknown.png

 

Then I also tried underclocking with MSI Afterburner, and it wouldn't always crash then, but it would sometimes freeze and then go to 1 FPS (actually more like 1 frame every 10 seconds).

 

After a few more crashes, I undid the registry edit.

 

I've included three of the past logs and my DxDiag.

 

dcs.log

dcs.log-20201114-211221.zip

dcsold.log

DxDiag.txt

[Kevstosmart]

I’m having the exact same issues, on any plane any map, most reproduced by going into f2 view on the start of the game. Or just randomly flying

[Flappie]

@thinkerdreamer Windows doesn't give you much pagefile (2 to 3GB). I don't see any memory error, although there is one DXGI_DEVICE_REMOVED error. But since you have very little pagefile, I think you should start here.

Try setting it manually to 16 GB. Store it on an fast disk (SSD, NVMe or M2) with more than 50 GB of free space.

 

Do this guys, set your pagefile to custom 16384 - 16384 and you should be able to enter any server and fly for hours.

 

 

[thinkerdreamer]

On 11/22/2020 at 2:01 AM, Flappie said:

[USER="184833"]thinkerdreamer[/USER] Windows doesn't give you much pagefile (2 to 3GB). I don't see any memory error, although there is one DXGI_DEVICE_REMOVED error. But since you have very little pagefile, I think you should start here. Try setting it manually to 16 GB. Store it on an fast disk (SSD, NVMe or M2) with more than 50 GB of free space.

Do this guys, set your pagefile to custom 16384 - 16384 and you should be able to enter any server and fly for hours. [IMG2=JSON]{"data-align":"none","data-size":"full","src":"https:\/\/i.imgur.com\/NX9kNVl.jpg"}[/IMG2]

@Flappie Thanks. I just set the pagefile to 16384 MB, but I can't test it right now. I'll try it out and post an update here sometime this week.

@Kevstosmart Did you try this fix? Did it help?

 

Edited November 30, 2020 by thinkerdreamer
Fixing quote

[Kevstosmart]

@thinkerdreamer yes I did that, I have a spare 256gb ssd I used for page file and a couple little things. 
 

I also did another fix he told me to do which was renaming your saved games directly, running a repair/clean.... @Flappie if you care to explain that fix a little more to him. I have had ZERO crashes since, my game logs folder directory is empty only the normal dcs.log so I can say flappie really helped me 

[Flappie]

@KevstosmartI haven't suggested this to him because he said he had already "wiped out [his] Saved Games folder".

 

Those crashes look a bit like these (no solution so far).

 

If it only happens when you load the F-14, try this:

1. Go to "E:\SteamLibrary\steamapps\common\DCSWorld\CoreMods\aircraft\".
2. Delete the "F-14" folder.
3. Launch a repair (through Steam, I guess).

 

[thinkerdreamer]

@Flappie So I just tested it after setting the pagefile to 16384 MB, and it was working when I loaded in, but crashed again when I flew the route in Caucasus where the crash was produced before. I'm attaching today's log.

dcs.log-20201203-162143.zip

[Flappie]

OK, this was not a memory issue then, as the absence of memory messages suggested. At last, we've tried.

You keep having the dreaded "DGXI_DEVICE_REMOVED" error:

 

2020-12-03 16:06:13.505 INFO    EDTERRAINGRAPHICS41: surface5 gc() 14.018600 ms
2020-12-03 16:07:13.423 WARNING Mission: register_unit(1005167,16902913) : db.units['1005167'] table is missing
2020-12-03 16:07:59.921 WARNING Mission: register_unit(1005169,16903169) : db.units['1005169'] table is missing
2020-12-03 16:09:09.530 ERROR   SOUND: invalid source_params(F14_PILOT_COCKPIT:aircrafts/f-14/groundroll): gain
2020-12-03 16:09:16.477 WARNING Mission: register_unit(1005172,16903681) : db.units['1005172'] table is missing
2020-12-03 16:21:42.759 ERROR   DX11BACKEND: DX device removed. Reason: 0x887A0006
2020-12-03 16:21:42.764 ERROR   DX11BACKEND: failed to create structed buffer. Reason: DXGI_ERROR_DEVICE_REMOVED
2020-12-03 16:21:42.764 ERROR   DX11BACKEND: CreateShaderResourceView FAILED. Reason: E_INVALIDARG
2020-12-03 16:21:42.767 INFO    EDCORE: try to write dump information
2020-12-03 16:21:42.769 INFO    EDCORE: # -------------- 20201203-162143 --------------
2020-12-03 16:21:42.772 INFO    EDCORE: DCS/2.5.6.58125 (x86_64; Windows NT 10.0.19041)
2020-12-03 16:21:42.774 INFO    EDCORE: C:\WINDOWS\SYSTEM32\d3d11.dll
2020-12-03 16:21:42.776 INFO    EDCORE: # C0000005 ACCESS_VIOLATION at 898198A0 00:00000000
2020-12-03 16:21:42.789 INFO    EDCORE: SymInit: Symbol-SearchPath: '.;E:\SteamLibrary\steamapps\common\DCSWorld;E:\SteamLibrary\steamapps\common\DCSWorld\bin;C:\WINDOWS;C:\WINDOWS\system32;SRV*C:\websymbols*http://msdl.microsoft.com/download/symbols;', symOptions: 530, UserName: 'etern'
2020-12-03 16:21:42.793 INFO    EDCORE: OS-Version: 10.0.19041 () 0x300-0x1
2020-12-03 16:21:43.848 INFO    EDCORE: 0x00000000001298A0 (d3d11): CreateDirect3D11SurfaceFromDXGISurface + 0x10420
2020-12-03 16:21:43.849 INFO    EDCORE: 0x0000000000124007 (d3d11): CreateDirect3D11SurfaceFromDXGISurface + 0xAB87
2020-12-03 16:21:43.849 INFO    EDCORE: 0x0000000000030857 (dx11backend): createRenderer + 0x17907
2020-12-03 16:21:43.850 INFO    EDCORE: 0x0000000000079393 (edterrainGraphics41): edtg41::TerrainRenderable::dumpRenderItem + 0x68F63
2020-12-03 16:21:43.850 INFO    EDCORE: 0x00000000000CD690 (edterrainGraphics41): createInstancerRenderable + 0x37430
2020-12-03 16:21:43.850 INFO    EDCORE: 0x00000000000C9050 (edterrainGraphics41): createInstancerRenderable + 0x32DF0
2020-12-03 16:21:43.850 INFO    EDCORE: 0x00000000000CA2D0 (edterrainGraphics41): createInstancerRenderable + 0x34070
2020-12-03 16:21:43.851 INFO    EDCORE: 0x00000000000DC9B8 (edCore): ed::this_thread::yield + 0x318
2020-12-03 16:21:43.851 INFO    EDCORE: 0x00000000000D3F7A (edCore): ed::make_render_thread_tasks + 0x1A
2020-12-03 16:21:43.851 INFO    EDCORE: 0x00000000007EF818 (DCS): CoreUtils::TempFilesManager::operator= + 0x3CB968
2020-12-03 16:21:43.851 INFO    EDCORE: 0x00000000007C1644 (DCS): CoreUtils::TempFilesManager::operator= + 0x39D794
2020-12-03 16:21:43.852 INFO    EDCORE: 0x00000000007C1A09 (DCS): CoreUtils::TempFilesManager::operator= + 0x39DB59
2020-12-03 16:21:43.852 INFO    EDCORE: 0x00000000017B4353 (DCS): AmdPowerXpressRequestHighPerformance + 0xB0B34F
2020-12-03 16:21:43.852 INFO    EDCORE: 0x00000000009AE5FE (DCS): CoreUtils::TempFilesManager::operator= + 0x58A74E
2020-12-03 16:21:43.852 INFO    EDCORE: 0x0000000000017034 (KERNEL32): BaseThreadInitThunk + 0x14
2020-12-03 16:21:43.852 INFO    EDCORE: 0x000000000004CEC1 (ntdll): RtlUserThreadStart + 0x21
2020-12-03 16:21:44.702 INFO    EDCORE: Minidump created.

 

I quote myself:

 

On 12/2/2020 at 12:44 PM, Flappie said:

Here are four threads dealing with the same kind of crashlog ("DXGI_ERROR_DEVICE_REMOVED"). The OPs all had their issue fixed, according to them. Feel free to read them and try what they have tried:

1. Cause: faulty PSU
2. Cause: SSLR enabled
3. Cause: overclocked GPU
4. Cause: RAM overclocked

[thinkerdreamer]

I ran Display Driver Uninstaller (https://www.wagnardsoft.com/content/ddu-guide-tutorial) to wipe my old display drivers and reinstalled the latest one. I also used MSI Afterburner again to underclock core clock by about 150 MHz and memory clock by about 20 MHz. Still crashed in the same place in Caucasus.

 

Since I don't crash in any other game and since my computer never randomly crashes when not gaming, I think it's unlikely to be the PSU. I don't have SSLR enabled. My RAM is not overclocked.

I appreciate your help, @Flappie.

dcs.log

[Flappie]

Does it only happen with the F-14?

Can you please try flying a Su-25T instant action mission and see if you still crash?

[mickthesaw]

Been having this problem on and off for the last six months, but lately perhaps in the last three months it craches everytime.Sometimes I get a crash log other times it freezes my pc.

Its always the ERROR DX11BACKEND.I've tried everything and I'm at a loss.

I've got a 1080Ti and a 7700k running a Reverb G1.

Today I've disconnected the Reverb and can run any mission fine without any crashes what so ever.Its definately Steam VR/Reverb/DCS issues.Never got this with 2.5

Raised a ticket again, spent a fortune on this sim but its now unplayable for me.I've payed for the P-47 when it came out but have never run this module yet.!

Fed up.!!!

 

dcs.log-20201204-174528.zip dcs.log-20201116-180808.zip dcs.log-20200430-221233.zip

[BIGNEWY]

1 hour ago, mickthesaw said:

Been having this problem on and off for the last six months, but lately perhaps in the last three months it craches everytime.Sometimes I get a crash log other times it freezes my pc.

Its always the ERROR DX11BACKEND.I've tried everything and I'm at a loss.

I've got a 1080Ti and a 7700k running a Reverb G1.

Today I've disconnected the Reverb and can run any mission fine without any crashes what so ever.Its definately Steam VR/Reverb/DCS issues.Never got this with 2.5

Raised a ticket again, spent a fortune on this sim but its now unplayable for me.I've payed for the P-47 when it came out but have never run this module yet.!

Fed up.!!!

 

dcs.log-20201204-174528.zip 2.22 MB · 2 downloads dcs.log-20201116-180808.zip 1.23 MB · 3 downloads dcs.log-20200430-221233.zip 521.05 kB · 3 downloads

Hi

 

are you overclocking your gpu? 

 

make sure windows and your gpu driver is up to date. 

 

Looking at the crash log it looks like your display driver is crashing

 

2020-12-04 17:45:28.131 WARNING LOG: 46 duplicate message(s) skipped.
2020-12-04 17:45:28.131 ERROR   DX11BACKEND: failed to create vertex buffer. Reason: DXGI_ERROR_DEVICE_REMOVED
2020-12-04 17:45:28.131 ERROR   DX11BACKEND: Failed assert `false && "failed to create vertex buffer"` at Projects\render\dx11backend_win8\Source\DX11BufferManager.cpp:379
2020-12-04 17:45:28.131 ERROR   DX11BACKEND: failed to create vertex buffer. Reason: DXGI_ERROR_DEVICE_REMOVED
2020-12-04 17:45:28.131 ERROR   DX11BACKEND: Failed assert `false && "failed to create vertex buffer"` at Projects\render\dx11backend_win8\Source\DX11BufferManager.cpp:379
2020-12-04 17:45:28.135 INFO    EDCORE: try to write dump information
2020-12-04 17:45:28.135 INFO    EDCORE: # -------------- 20201204-174528 --------------
2020-12-04 17:45:28.136 INFO    EDCORE: DCS/2.5.6.58125 (x86_64; Windows NT 10.0.19041)
2020-12-04 17:45:28.137 INFO    EDCORE: C:\WINDOWS\SYSTEM32\d3d11.dll

[thornx]

Maybe related:

 

https://forums.eagle.ru/topic/254682-game-crash-in-multiplayer/

Edited December 5, 2020 by thornx

[mickthesaw]

Well I've updated my graphics driver this morning,deleted FXO and metashaders, done a repair and used the dll file in the Tdr post.Removed MSI aftterburner from my system.

So no overclocking, loaded up Dcs run the cold start mission in Normandy (spitfire)tabbed F4 to follow another ai plane.Put the headset on my desk and watched the monitor for around 5 minutes and the system crashed.Its not creating a crash log now.!

I'm at a loss now.? remove headset and everything is fine.DCS/Steam/Windows MR/Reverb..??????

 

[mickthesaw]

So this has drove me mad all weekend.! No VR headset its fine.

Latest Nvidia drivers installed,new DCS saved games folder, repair, clean, no overclocking software installed.Crash,crash crash.!

Something aint right,so I loaded up CPU-id to check my cpu,ram and video settings when running DCS with no VR.

My stock Inno 3D 1080Ti should run Core Frequency 1556 boost 1670.

DCS default 1898..!!!! way over boost by default.! I cant test another game as I've nothing else on my system, Youtube videos nothing comes close to that speed.

Re-loaded MSI Afterburner, made a profile to stick to default card settings max core 1670 VR runs perfect.!

Something in DCS is overclocking the card by default..?? I cant say for sure as I've no other games but this could be your DirectX backend error.

I ran a MSI Afterburner test/scan that maxed out at 1800 core.

This might help others who are getting the same error.?

[Flappie]

Thanks for your feedback, Mick. I don't think DCS has any way to control overclocking.

Before the problem was solved, had you made a DCS-specific profile in any of your graphics software? MSI Afterburner, MSI One Dragon... ?

Edited December 6, 2020 by Flappie

[mickthesaw]

Hi Flappie I'd unistalled MSI from the pc and was getting crashes constantly.I've realised I've got Halflife Alyx so may run that and see what stock speeds that runs at.

All my issues must have been due to the video card being overclocked, but I never run any overclocking software.I'd tweak the cpu for extra horses.

I've just run H/L Alyx its topping the card out at 1800, so I thought I'd run DCS again with no MSI running only CPU-ID and DCS topped out at 1783.?

Why its been running at 1898 I dont know.?

 

[mickthesaw]

Something is not right here.?

I've just restarted my pc loaded up CPU-ID and DCS and look at the stock video card speed back to 1898.!

No VR running either  Wtf.????

Sorry for the pic I couldn't get snipping tool to work so its an iphone pic.

Edited December 7, 2020 by mickthesaw

[Flappie]

Oh. Problem is not solved, then?

I'm doing a bit of research on my side.

[Flappie]

Please ensure your "C:\Program files (x86)\MSI Afterburner\Profiles" folder is empty.

 

Another solution is to reinstall MSI Afterbrner and reset its settings.

 

Quote

take the Sliders for both Memory and GPU Frequency and put them at 0 and then apply the Profile. Job Complete, you are now at Stock Settings.

 

Edited December 7, 2020 by Flappie

[mickthesaw]

Something in DCS is causing this.?

[Flappie]

I have the same card (1080Ti), I run it at stock frequencies, and this is what I get with CPU-ID:

• 1556 MHz at idle
• 1885 MHz while flying in DCS

As I was once told CPU-Z GPU monitoring was unreliable, I used GPU-Z instead, and I got the exact same result:

 

 

And then I investigated a bit. According to this French website, both our frequencies are correct:

 

 

This means DCS only run your GPU at max default frequency (no OC).

Another source here, English this time: https://www.notebookcheck.net/Nvidia-GeForce-GTX-1080-Ti-Review.202292.0.html

 

Quote

The Nvidia GeForce GTX 1080 Ti reaches slightly higher clocks than the Nvidia Titan X by default. GPU-Z determines 1481 MHz (default) and 1582 MHz (Boost). We saw a maximum GPU frequency of 1898 MHz (Titan X: 1835 MHz) during the GPU-Z Render Test. The Witcher 3 is executed at 1760-1800 MHz. The "Temperature Target" of the 1080 Ti is 84 °C by default, and the GPU starts to reduce the performance when the chip surpasses this limit.

 

[thinkerdreamer]

@Flappie Just a quick update from me. Yesterday I played War Thunder for the first time and after a while it crashed too. I took out my graphics card, dusted it off and put it back in. It might not have been in perfectly before. I also moved the computer case farther from my UPS, which gets hot. I'll try DCS again sometime this week and let you know. I've only ever flown with the F-14, but I'll try the Su-25T too.

[Flappie]

Good idea. The F-14 module is way more GPU-greedy. But if you keep having crashes with the F-14, I'd be curious if the Su-25T would make DCS crash as well, for sure.

Waiting for your feedback.

[mickthesaw]

I'm going to throttle back my card to 1800 and do some test tonight, I'll report back