UE5 5.5 and DLSS 4 crash (original) (raw)

When the editor is running(dlss is running), dragging the game window or repeatedly pressing F11 to full screen will occasionally cause the GPU to crash. Is there any solution? I can change the source code.

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If i turn off r.RHICmd.ParallelTranslate.Enable, this will not happen.

I dream about a solution last night, but I couldn’t remember it when I woke up.

upupupup, editor crash problem

Hi @421745720, first of all welcome to the NVIDIA developer forums.

I understand that you might be frustrated with this error.
If you want to get help from NVCIDIA you would need to provide a little bit more information than the above.

RHI as such is not an NVIDIA software, it is Epics own HAL to be able to use different Graphics APIs independent of underlying GPUs. This is a good source for some details o it: https://dev.epicgames.com/community/learning/tutorials/aqV9/render-hardware-interface-rhi

To check if DLSS is involved here you should check with or without DLSS enabled nd also share the detailed UE logs for all DLSS related log output. Which ones are needed is detailed in the SDK documentation.

Thanks!

dlsscrashlog.txt (70.6 KB)

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Thanks for your reply! Here are more information about the crash(one log file and two captures of the minidump).
In the log file you can see some of the resources are destoryed, which cause the gpu crash.
And if i release the DLSSFeature manually after NGX_D3D12_EVALUATE_DLSS_EXT is called, that will cause GPU crash too, but in this case the log shows all resources are destoryed. I wonder if I need to add more synchronization points but i don’t know how to do.

  1. this bug can be triggered by scale the editor viewport
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  2. from the log often 2 frame postprocess submit at the same time:
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** 3. from the gpu dump file it seems that input/output of dlss have be evicted by DX12 ResidencyManager
image 4. local test close ResidencyManager in dx12 or make input/output of DLSS residency fix this problem in my computer
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or
turn off the residency manager

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Thanks for your reply. Have you try press f11 very fast? It seems that makeResident is not work for my computer.

jof4002 April 9, 2025, 1:12am 10

thanks, 1157988949.
This fix seems to work very well.

Have you try press f11 very fast?