DMX2 Bits For X.Org Server To Move Forward
Written by Michael Larabel in X.Org on 7 January 2010 at 03:03 PM EST. 2 Comments
Back in 2008, Novell's David Reveman published his own branch of the Distributed Multi-head X (DMX) server which he called dmx-2 as it was close to a complete rewrite of the original DMX implementation. David's DMX-2 branch was less complex but provided a greater set of features, including X-Video, RandR 1.2, and Composite support in a DMX environment, D-Bus configuration, and many other changes. This branch was never merged to master, but now Red Hat's Adam Jackson is looking at merging some of the DMX-2 to work into the mainline X Server.

The major items that Adam is looking at from DMX-2 include support for Composite when using Xinerama, exposing animated cursors to the DDX for acceleration, integrating RandR and Xinerama at the protocol layer, and various performance optimizations for for redirected windows and MIT-SHM.

Adam has re-based all of the old DMX-2 DIX (Device Independent X) code against the latest master code, which can currently be found in this branch. Nothing has yet been merged to the X.Org Server master branch, but there is currently an ongoing discussion.

X Server 1.8 just recently entered its bug-fixing state where no new features are supposed to be committed, but there's always room for exceptions. Otherwise this work will likely end up in X Server 1.9 to be released in late 2010.
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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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