Re: [LUG] X-windows problems Solved!!!

[Simon Waters <Simon@xxxxxxxxxxxxxxxxxxxx>]

jody salt wrote:
> I have solved my X-windows problem!! :)
>
> > Many drivers need options (often noaccel) to work
> this seemed to be the answer to my problem!!
> (what is noaccel? is it some sort of double buffering
> process? --- just curious)

> From the XAA.HOWTO on the cvsweb repository....

Hope it helps.

Simon

0) WHAT IS XAA
       
  XAA (the XFree86 Acceleration Architecture) is a device
dependent
layer that encapsulates the unaccelerated framebuffer rendering
layer,
intercepting rendering commands sent to it from higher levels of
the
server.  For rendering tasks where hardware acceleration is not 
possible, XAA allows the requests to proceed to the software
rendering
code.  Otherwise, XAA breaks the sometimes complicated X
primitives
into simpler primitives more suitable for hardware acceleration
and
will use accelerated functions exported by the chipset driver to 
render these.

  XAA provides a simple, easy to use driver interface that
allows
the driver to communicate its acceleration capabilities and
restrictions
back to XAA.  XAA will use the information provided by the
driver
to determine whether or not acceleration will be possible for a
particular X primitive.

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