!! SOLVED !! (for me) Error: Unreal Engine is exiting due to D3D device being lost

[CosMik_WILDCARD]

Hi everyone!!

Even you guys have the same problem?? It appeaers randomly. I notice that this error show up frequently:

Unreal Engine is exiting due to D3D device being lost

My specs:

AMD Phenom II X4 956
Nvidia Geforce GTX 760
Ram 12 gb

I've done many trials, update drier nvidia, put the famous "fullscreen", and all graphic settings to low.

The only thing (whathever the graphic settings are) when "rendering scale" is low, even if all other options are "high" it crash less often, and don't crash the entire computer.

Instead, if "rendering scale" is high (like up to 80-100), it crash me much more, ofthe computer stop to work and I must restart.

Wish to know if somebody had the same problem and have solved it!!

I want put and end on this agony!

Tahnks in advice!

[Ace]

For anyone still looking for a solution - lowering the GPU clock by about 10% with MSI Afterburner solved the fatal error "Unreal Engine is exiting due to D3D device being lost" for me.

I first spent several hours testing everything from switching fullscreen/windowed, lowering graphics settings and capping the framerate, reinstalling my GPU drivers, tweaking the TDR Delay value, monitoring the GPU temp (below 75C) and memory, etc. My GPU was never overclocked, many other games working fine. Still got this fatal error from Unreal Engine after several minutes into the game.

Finally I lowered the GPU Boost Clock by 170Mhz with Asus GPU Tweak and the error never showed up again even on Ultra settings with 144Hz framerate.
https://steamcommunity.com/sharedfiles/filedetails/?id=2462018011
With MSI Afterburner I had to set Core Clock to -500 to make my GPU stay below 1600 Mhz. At least with -500 value the error went away and Unreal Engine worked stable all night long.
https://steamcommunity.com/sharedfiles/filedetails/?id=2462019000
In principle, for different graphics cards try adjusting the Max Clock (Mhz) value so that your GPU Boost clock goes down by about 10%.

[savaty]

i use your trick with Afterburner and AMD driver 21.4.1 (but no Adrenalin software) , downclocked the core from 1268 to 1218 (-50MHz) and looks better for the moment i could play online without timeout or crash. Thanks @Ace!

[Finik]

I have completely resolved my issue by using GPU underviolting without loosing performance (the main resolver) + Nvidia Studio drivers:

Here is the video:
https://www.youtube.com/watch?v=4NJsEzMkdWo

[Damien]

Interesting bug, would be great to know if it's just T7 or a UE4 with old gpus bug.

[Viva Cristo Rey]

Asus GPU Tweak has worked for me. I lowered the GPU clock as much as this software allows, which is like 8%, and can play Tekken 7 without problems. However, I have to set the clock to default and close GPU tweak to do other stuff like browsing or watching movies or the computer shuts off. I never experienced this bug with Sould Calibur 6.

MSI afterburner allowed me to play Tekken for extended periods of time but it would still crash and show the "Unreal engine exited..." from time to time.