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X.Org Multi-Touch Support Finally Set To Land

X.Org

Published on 14 December 2011 10:29 PM EST
Written by Michael Larabel in X.Org
6 Comments

Multi-touch support is finally ready for the X.Org world! Peter Hutterer has submitted the patches for X.Org Server 1.12 that deliver on multi-touch support with the X Input 2.2 extension.

After being delayed by several release cycles and going from being a feature of X Input 2.1 to X Input 2.2, the multi-touch support for the X.Org Server is finally ready. It's going to land in the 1.12 release, which will be officially released in March.

Peter Hutterer, the developer that was also behind Multi-Pointer X (MPX) support for the X.Org Server, emailed in the pull request so that Keith Packard can accept this work during the xorg-server 1.12 merge window, which is closing in just a few days.

With the multi-touch event support, X Input 2.2 also introduces pointer emulation on selected touch events and the semantics for grabbing and replaying of touch sequences. The current support isn't yet perfect, but it's continuing to be refined as tool-kit and application developrs begin targeting Xi2.2 support. Developers for Qt and the GTK tool-kits have already been gearing up for multi-touch support in their newest tool-kits.

Besides needing to grab a new X.Org Server, also required for taking advantage of the X Input 2.2 Multi-Touch support is an updated inputproto, xf86-input-evdev input driver, and a new libXi. With the X.Org Server 1.12 final release in March will also come the X.Org 7.7 Katamari.

Besides Peter, also having a hand in the multi-touch / Xi 2.2 work has been Daniel Stone and Chase Douglas.

About The Author
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 and or contacted via .
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