RandR 1.5 Works: GPU Offloading, USB Hotplugging
Written by Michael Larabel in X.Org on 19 June 2012 at 10:17 AM EDT. 19 Comments
X.Org
RandR 1.5 paired with the latest X.Org Server advancements allows for GPU offloading and USB GPU hot-plugging under Linux. Here are some demos of this technology finally working.

David Airlie has been working on the X.Org support for GPU offloading (e.g. NVIDIA Optimus-like configurations) and USB GPU hot-plugging (e.g. the DisplayLink adapters). David made DDX driver API changes, hacked on DRM PRIME, and then added provider object support for RandR 1.5, among other work.

With the very latest Linux kernel and X.Org bits, everything is falling into place for GPU offloading and GPU USB hot-plugging. Below are two videos that were uploaded by David Airlie to show off the technologies that are new to X.Org.

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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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