Encountered slow and laggy performance in the Unreal Engine within my NVIDIA CUDA container following a driver update. The issue is suspected to be related to OpenGL not utilizing the GPU but instead relying on the CPU. This inference is drawn from the output of the glxheads
command within the container, indicating the use of Mesa/X.org and llvmpipe for rendering:
GL_VERSION: 3.1 Mesa 21.2.6
GL_VENDOR: Mesa/X.org
GL_RENDERER: llvmpipe (LLVM 12.0.0, 256 bits)
In contrast, running the same command on the host PC reveals NVIDIA usage: