Manual Pages for UNIX Operating System command usage for man exa

Device and Network Interfaces                              EXA(7)



NAME
     exa - new 2D acceleration architecture for X.Org

DESCRIPTION
     EXA provides a simple API for video drivers to implement for
     2D  acceleration.   It is a module loaded by drivers, and is
     not intended to be loaded on its  own.   See  your  driver's
     manual page for how to enable EXA.

     The EXA architecture is designed to  make  accelerating  the
     Render  extension simple and efficient, and results in vari-
     ous performance tradeoffs compared to XAA.   Some  xorg.conf
     options  are  available  for debugging performance issues or
     driver rendering problems.  They are not intended  for  gen-
     eral use.

     Option "EXANoComposite" "boolean"
          Disables acceleration of the Composite operation, which
          is  at  the heart of the Render extension.  Not related
          to the Composite extension.  Default: No.

     Option "EXANoUploadToScreen" "boolean"
          Disables acceleration of uploading pixmap data  to  the
          framebuffer. Default: No.

     Option "EXANoDownloadFromScreen" "boolean"
          Disables acceleration of  downloading  of  pixmap  data
          from  the  framebuffer.  NOTE:  Not usable with drivers
          which rely on DownloadFromScreen succeeding.   Default:
          No.

     Option "MigrationHeuristic" "anystr"
          Chooses an alternate pixmap  migration  heuristic,  for
          debugging  purposes.  The default is intended to be the
          best performing one for general use, though others  may
          help   with  specific  use  cases.   Available  options
          include "always", "greedy", and "smart".  Default: always.

SEE ALSO
     Xorg(1), xorg.conf(4).

AUTHORS
     Authors include: Keith Packard, Eric Anholt, Zack Rusin, and
     Michel Dnzer











X Version 11     Last change: xorg-server 1.7.7                 1