Earlier this year Keith Packard started a contract gig for Valve working to improve Linux’s support for virtual reality head-mounted displays (VR HMDs). In particular, working on Direct Rendering Manager (DRM) and X.Org changes needed so VR HMDs will work well under Linux with the non-NVIDIA drivers…
Source: Phoronix – Keith Packard’s Work On Better Supporting VR HMDs Under Linux With X.Org/DRM