anyone here has a laptop with a rtx and ue4.22 dx12 that does not freeze ?
same issue on a 2070 laptop
you can run ue4 on an external monitor connected to the gpu. another workaround is to run the editor with d3ddebug argument
did you submit a bug report, I had no luck, they couldnt reproduce in my case?
ok but when I write:
“C:\Program Files\Epic Games\UE_4.22\Engine\Binaries\Win64\UE4Editor.exe” -dx12 -d3ddebug
ue4 crashes upon launching
without a space between dx12 and -d3ddebu, UE4 does not crash but it does not take into account the r.ray commands.
I tried to reverse -dx12 and -d3ddebug, to place " in various places, and even to take them out but the result is the same…
In all cases, my drivers and windows are ok!
Help 
Where must I submit the bug reports?
ok done …
yeah thats correct large projects crash but some smaller projects dont. thats also really annoying for me that I cant use it on my main monitor.
You can submit it here;
yeah thats correct large projects crash but some smaller projects dont. thats also really annoying for me that I cant use it on my main monitor.
You can submit it here;
bug :
LoginId:71dbecdf4f2b5d027b2ed0a5c6eb5347
EpicAccountId:a2a0f1c6c9de4ee6884f68ec13952eca
Assertion failed: [File:D:\Build++UE4\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Util.cpp] [Line: 263] D3D12GetDebugInterface(IID_PPV_ARGS(DebugController.GetInitReference())) failed at D:\Build++UE4\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Adapter.cpp:99 with error 887A002D
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_RHI
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
kernel32
ntdll
Same here
check also here,
dont forget to submit a bug report so that epic team maybe can reproduce it with you. Unreal Engine Community
Ok, I finally found a workaround, which is not the best but at least it lets you to work on any project if you dont have a monitor around.
Normally if you disable intel card from device manager before opening ue4, the engine doesnt work, but if you open the project with the intel card enabled and as soon as engine starts you should minimize the engine without clicking anything, its important that you minimize it, otherwise the video card crashes, then after minimizing go to the device manager and disable the intel card, then the editor should work.
Run the editor with -opengl4 and tell DX to go to hell, this fixed all of my crashing issues after trying absolutely every other recommendation with no effect