Recurring DCS crash in MP

[Gelo_]

It's my first post on the forum so i apoplgize in advance for any mistake

Lately i've been experiencing numerous dcs crashes in various multiplayer servers, they occour indipendently from the module or the map i use and the server i choose, they can also happens as soon as i join a server or after an hour of playing. I've already tried removing all the mods and repairing DCS multiple times but the crashes still happens. I also used the discord log analyser and tried some of the suggestions like unparking the cores and deactivating the gpu scheduling so this forum is my last resort. I've collected a large numbers of logs 'cause dcs basically crashes at least twice a day, i've attached the most recent ones but i can provide more if needed. What i noticed was that the crashes are not always caused by the same dll, and i have no idea how to recreate them.  I hope you can understand the logs better than i do, cause the sim has become unplayable for me lately

dcs.log-20250318-201152.zip dcs.log-20250317-160743.zip dcs.log-20250316-180318.zip dcs.log-20250315-155941.zip

[BIGNEWY]

Hi Gelo_

welcome to the forum. 

A quick look at the log shows it could be gpu related. Please ensure windows is up to date, and the gpu driver is the latest one, if you have the latest one it maybe worth reinstalling the driver fresh. If you overclock consider default clock speeds. 

Remove unofficial mods like UH-60L,Hercules ver 6.8.2 and run a slow repair of DCS. 

let us know if it helps. 

 

[Gelo_]

Both the gpu drivers and windows are up to date, also the gpu is not overclocked, in this days i already tried playing dcs without mods and i tried repairing it multiple times but unfortunately the crashes still happens, i also tried reinstalling the whole sim but no luck

[BIGNEWY]

could the gpu be getting hot? 

2025-03-18 20:11:52.207 ERROR   DX11BACKEND (12108): DX device removed. Reason: 0x887A0006
2025-03-18 20:11:52.412 ERROR   DX11BACKEND (12108): failed to create vertex buffer. Reason: DXGI_ERROR_DEVICE_REMOVED
2025-03-18 20:11:52.412 ERROR   DX11BACKEND (12108): Failed assert `false && "failed to create vertex buffer"`

your gpu is being removed and this causes the crash

[Gelo_]

The temperature might be a factor considering i'm on a laptop even though i'm using external fans and the only game that crash is dcs, does this error appear in all the logs?

Edited March 18 by Gelo_

[BIGNEWY]

Yes the error is in the dcs log, the crash shows edcore, but if you look in the actual log you can see the gpu fail before it. 

[Gelo_]

rgr, i'll try to run some test with better cooling in this days and i'll let you know if anything change

[Gelo_]

I'm back with some bad news, unfortunatly the temperature doesn't seem to be the problem, in these days i've been monitoring the gpu temps and it never exceed 75°C, considering i'm on a laptop i'd say that value is within the limit. I've had a couple more crashes, one as soon as i entered a MP server and another one after 35-40 min of playing, i'll attach the logs hoping it might be useful

dcs.log-20250320-185842.zip dcs.log-20250320-231520.zip

[sleighzy]

9 hours ago, Gelo_ said:

I'm back with some bad news, unfortunatly the temperature doesn't seem to be the problem, in these days i've been monitoring the gpu temps and it never exceed 75°C, considering i'm on a laptop i'd say that value is within the limit. I've had a couple more crashes, one as soon as i entered a MP server and another one after 35-40 min of playing, i'll attach the logs hoping it might be useful

dcs.log-20250320-185842.zip 5.36 MB · 3 downloads dcs.log-20250320-231520.zip 3.38 MB · 1 download

Both of these logs indicate a crash due to a GPU issue. I see also unplug events.

There is a GPU-related error

• Remove any overclocking from your GPU. Uninstall your GPU driver with DDU and install a clean one.

Also confirmed by this log message.

DX11BACKEND (14804): failed to create vertex buffer. Reason: DXGI_ERROR_DEVICE_REMOVED

See the DCS FAQ on this. https://www.digitalcombatsimulator.com/en/support/faq/startup/#3312253

There are also unplug events in here which are also likely related:

INFO    APP (Main): Device unplugged: [HID] HID-compliant device

 

[Gelo_]

The gpu is not overclocked, i'll try to re install the drivers for a second time, regarding the unplug event, i have no idea what it could be, the only things plugged in to the pc are the hotas and the mouse

[sleighzy]

3 hours ago, Gelo_ said:

The gpu is not overclocked, i'll try to re install the drivers for a second time, regarding the unplug event, i have no idea what it could be, the only things plugged in to the pc are the hotas and the mouse

Some GPUs come with a factory over lock, you could confirm if this is the case with MSI Afterburner.

For the unplug item could be a power issue (maybe related ),  do you use a powered usb hub for them? …or unrelated, just interesting that it shows up unexpectedly in the logs. 

[Gelo_]

Ok i checked with MSI Afterburner the gpu clock speed and it matches with the values i found online, also i re-installed the gpu drivers yesterday night, i'll hop on dcs in a copule of hours and we'll see what happens. Regarding the hotas, it's directly plugged in to the laptop usb

[rob10]

1 hour ago, Gelo_ said:

Ok i checked with MSI Afterburner the gpu clock speed and it matches with the values i found online, also i re-installed the gpu drivers yesterday night, i'll hop on dcs in a copule of hours and we'll see what happens. Regarding the hotas, it's directly plugged in to the laptop usb

Do you have the option to plug the hotas into a powered hub?  There is a chance that the laptop (especially when it's running hard trying to keep DCS going) doesn't have enough power supply to go around and power to that USB is dipping.