Comment 5 for bug 1680276

This and a handful of other DRM drivers got disabled because they present insecure APIs to userspace. The recommendation provided from upstream developers is "to use the safe modeset-only drivers instead, and perform 3D emulation in user-space." If that isn't practical for some reason we might be able to re-enable the drivers. However we probably need at minimum to exclude these from module signing, and perhaps even blacklist those modules by default.