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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 .
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