Tom Ilett

I have this same issue with importing mlab on headless Debian 5.15 using conda. The suggested fixes here don't work (fails on import of mlab so ordering not the problem...

I fixed this by running `Xvfb` as per instructions here: https://docs.enthought.com/mayavi/mayavi/tips.html#rendering-using-the-virtual-framebuffer

TL;DR: `export GALLIUM_DRIVER=softpipe` fixes the problem. The problem appears to be with the renderer. When using `Xvfb` you don't get the hardware support so even with a GPU on the...

OK in a last attempt, I installed the `llvm-dev` package (https://docs.mesa3d.org/drivers/llvmpipe.html) and reinstalled all my conda packages. Nope, `GALLIUM_DRIVER=llvmpipe` still fails under `Xvfb`. BUT (I'm sure coincidentally) now my gpu-aware...