David Airlie Talks About RandR 1.4, Reverse PRIME
Written by Michael Larabel in X.Org on 6 February 2013 at 03:37 PM EST. 8 Comments
Aside from the real story behind Wayland and X, another Linux graphics focused presentation at LCA 2013 was by David Airlie talking about his work on RandR 1.4 / PRIME.

David Airlie's presentation at the Linux Australia conference was on "teaching the X Server new tricks." The talk mainly covered his recent work on PRIME / RandR 1.4 with GPU hot-plugging and GPU offloading and then more recently with Reverse PRIME. The work is mostly centered around supporting multi-GPU systems better in X.Org with systems like NVIDIA Optimus laptops or the increasingly popular USB-based DisplayLink devices.

As a future project, Airlie still talks about GPU switching support for the X.Org Server but that remains a difficult situation due to needing to re-initialize the compositor cleanly on switching graphics processors. Another future item is Post-Xinerama/Shatter for breaking up rendering between GPUs.

David Airlie's presentation is embedded below. The rest of the Linux.Conf.Au 2013 videos can be found from this Linux.org.au directory.

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Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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