NVIDIA says it still can’t reproduce a DirectX 12 launch failure affecting The Blood of Dawnwalker on Linux through Proton. The issue was reported on an RTX 3070 running Fedora with NVIDIA’s 615.71.09 driver. The game reportedly fails when VKD3D-Proton tries to create a Vulkan device, preventing it from launching. A workaround using VKD3D_CONFIG=single_queue was found to get the game running by avoiding asynchronous compute and transfer queues. But NVIDIA hasn’t confirmed the problem as a driver bug yet “I am still not able to repro VKD3D-Proton vkCreateDevice Failure (vr -3) in DirectX 12 / UE5.” NVIDIA did reproduce a separate Firefox crash on Wayland and opened bug 6924256, but that bug does not cover the Dawnwalker issue.