PRIME Synchronization Is Still Being Worked On To Fix Tearing
Alex Goins of NVIDIA posted the patches yesterday evening as version two of PRIME synchronization for the i915 DRM. The patches aren't big but will hopefully fix tearing for those using PRIME on dual GPU systems.
Information on the PRIME synchronization support can be found from the start of the patch series. Alex Goins is a newer member of NVIDIA's Linux Graphics team with just officially joining them this summer, but he had been an intern on NVIDIA graphics team the prior two summers.