Well, I think part of the idea is that the fairly recent LLVMPipe software driver [1] should be installed by default in distros and is well supported/performant

Well, I think part of the idea is that the fairly recent LLVMPipe software driver [1] should be installed by default in distros and is well supported/performant enough so you can install the drivers in the full composited desktop... 1. http://www.mesa3d.org/llvmpipe.html http://www.mesa3d.org/llvmpipe.html