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

Dance Around The Fire: X.Org XAA Is Burned

X.Org

Published on 10 July 2012 09:29 AM EDT
Written by Michael Larabel in X.Org
8 Comments

Prior to closing the merge window for X.Org Server 1.13, Keith Packard pulled Daniel Stone's latest patches, which have killed off XAA acceleration support for DDX drivers.

We knew that XAA was on its deathbed as this means of 2D acceleration for X.Org graphics drivers was pretty much useless to modern needs, most drivers now support EXA/UXA/SNA/GLAMOR, and the XAA code was pretty much broken. Only some old graphics processors with their vintage xf86-video-* drivers still rely upon XAA, but that hardware should be killed or reworked to use EXA as was recently done for the ATI Rage 128 driver.

Daniel's patch that kills XAA from the X Server was pulled into xorg/xserver early this morning.
Remove XAA
Commit 0c6987df in June 2008 disabled XAA offscreen pixmaps per default, as they were broken, leaving XAA only able to accelerate operations directly on the screen pixmap and nowhere else, eliminating acceleration for basically every modern toolkit, and any composited environment.

So, it hasn't worked for over four years. No-one's even come close to fixing it.
RIP.

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. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  2. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  3. AMD Radeon R9 285 Tonga Performance On Linux
  4. Apotop Wi-Copy
Latest Linux Articles
  1. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  2. MSI: Update Your BIOS From The Linux Desktop
  3. NVIDIA vs. AMD 2D Linux Drivers: Catalyst Is Getting Quite Good At 2D
  4. 15-Way GPU Comparison With Mesa 10.3 + Linux 3.17
Latest Linux News
  1. Phoronix Test Suite 5.4 M3 Is Another Hearty Update
  2. GParted 0.20 Improves Btrfs Support
  3. EXT4 In Linux 3.18 Has Clean-ups, Bug Fixes
  4. Emacs 24.4 Has Built-In Web Browser, Improved Multi-Monitor Support
  5. NVIDIA's NVPTX Support For GCC Is Close To Being Merged
  6. KDE's KWin On Wayland Begins Using Libinput
  7. Khronos Releases OpenVX 1.0 Specification
  8. Linux Kernel Working Towards GNU11/C11 Compatibility
  9. Ubuntu 15.04 Is Codenamed After A Monkey: Vivid Vervet
  10. Following GCC, Clang Looks To Default To C11
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. HOPE: The Ease Of Python With The Speed Of C++
  4. Bye bye BSD, Hello Linux: A Sys Admin's Story
  5. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux
  6. AMD Is Restructuring Again, Losing 7% Of Employees
  7. Open-Source AMD Fusion E-350 Support Takes A Dive
  8. Upgrade to Kaveri, very slow VDPAU performance