1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

The X.Org Plans For Moving Away From HAL

X.Org

Published on 02 December 2009 03:42 PM EST
Written by Michael Larabel in X.Org
29 Comments

To address the questions that have been coming up frequently regarding the X.Org Server and the plans to stop using HAL, Sun's Alan Coopersmith has created a new Wiki page called XorgHAL.

On this Wiki page, Alan explains how this hardware abstraction layer for Linux and other operating systems is currently in use for finding input devices, being notified of input device hot-plugging, mapping system input devices, and setting input device options. X.Org has been using HAL since X Server 1.4 and it continues to be used in the most recent X Server 1.7 series, but the migration away from HAL will likely be completed in time for X Server 1.8. This next version of the X.Org Server is planned for release in March.

In replace of HAL in the X Server will be a lot more of OS-specific code to the operating system's respective libraries for device enumeration and device notification. On Linux this means connecting a lot of libudev directly into the X Server. Instead of the input device options being stored in HAL FDI files, the X Server will begin supporting a xorg.conf.d directory for handling input driver options. These new files will utilize a new syntax for matching the options with the respective devices. While the X Server will be picking up this directory support, editing the xorg.conf will remain supported and a valid option.

This code is not yet in place, but it's the current plans for dropping HAL from the X Server for input devices, since the upstream project itself is stopping development in favor of supporting DeviceKit and other projects.

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 .
Latest Linux Hardware Reviews
  1. Btrfs On 4 x Intel SSDs In RAID 0/1/5/6/10
  2. AMD Radeon R9 290 On Ubuntu 14.10: RadeonSI Gallium3D vs. Catalyst
  3. MSI X99S SLI PLUS On Linux
  4. NVIDIA GeForce GTX 970 Offers Great Linux Performance
Latest Linux Articles
  1. Windows 8.1 vs. Ubuntu 14.10 With Intel HD Graphics
  2. 6-Way Ubuntu 14.10 Radeon Gallium3D vs. Catalyst Driver Comparison
  3. NVIDIA vs. Nouveau Drivers On Ubuntu 14.10
  4. Ubuntu 14.10 Offers AMD Radeon Driver Performance Improvements
Latest Linux News
  1. GTK+ 3.16's New GtkGLArea Widget Gets Improved
  2. X.Org Server 1.17 ABI Bumped
  3. Fedora 21 Beta To Be Released Next Week
  4. Go 1.4 Beta Release Brings Big Runtime Changes
  5. SIMD For JavaScript Continues Coming Along
  6. GNOME 3.15.1 Released
  7. Red Hat Software Collections 1.2 Adds GCC 4.9, Nginx 1.6
  8. GLAMOR Acceleration Continues To Be Cleaned Up
  9. Russia's Yandex Web Browser Finally Released For Linux
  10. Linux Kernel Finally Being Optimized For SSHDs
Latest Forum Discussions
  1. Is foolish currently develop in machine code, hexadecimal and assembly?
  2. Reducing The CPU Usage In Mesa To Improve Performance
  3. How to get rid of Linux
  4. Help diagnosing problems with a Readon HD 4670 on Mesa 10.3.2-1
  5. Advertisements On Phoronix
  6. nv and xorg.conf under Debian PPC
  7. Looking for a Open-Source AMD experienced Linux mentor
  8. Bad perfomance in gaming