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. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  2. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  3. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
  4. 6-Way Winter 2014 Linux Distribution Comparison
Latest Linux News
  1. Fedora 21 Released For POWER & AArch64 Hardware
  2. Elasticsearch & wxPython 3 Proposed For Fedora 22
  3. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  4. GTK+ On Windows Now Supports OpenGL
  5. New Ruby Benchmarks On GCC vs. LLVM Clang Compilers
  6. Multi-Stream Transport 4K Monitors To Become Better Supported On Linux
  7. New Supertuxkart Beta Lands New Graphics Engine, Uses OpenGL 3.1+
  8. SuperX 3.0 Beta Continues To Polish The KDE Desktop Experience
  9. Radeon vs. Modesetting DDX Performance Comparison
  10. Linux Mint 17.1 RCs Out For Xfce & KDE
Latest Forum Discussions
  1. Need some hand holding with upgrading xserver
  2. Ubuntu Developers Still Thinking What To Do About Adobe Flash Support
  3. XLennart: A Game For Systemd Haters With Nothing Better To Do
  4. Microsoft buying Mojang
  5. Updated and Optimized Ubuntu Free Graphics Drivers
  6. Premium subscription "login" times out much faster than forum
  7. AMD Catalyst 14.12 Linux Driver Released -- Huge Update!
  8. Did Valve already get what they wanted from SteamOS? i.e. Win kernel + BigPicture DE