For those curious about the DRM render/mode-set nodes
work that was successfully accomplished via GSoC by David Herrmann, he has written another blog post at length about his accomplishments.
The render nodes work is to be merged with the Linux 3.12 kernel
for this work that breaks up the GPU rendering and mode-setting interfaces for a variety of reasons.
David Herrmann has already written at length about VT switching on Linux
and his quest to kill kernel VT switching (CONFIG_VT) support, while his latest insightful blog post is again on his render/mode-set project.
For those wanting a deep technical read this Sunday morning about DRM and render/mode-set nodes, visit David's blog