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CYRIX(4)		   Kernel Interfaces Manual		      CYRIX(4)

NAME
       cyrix - Cyrix video driver

SYNOPSIS
       Section "Device"
	 Identifier "devname"
	 Driver	"cyrix"
	 ...
       EndSection

DESCRIPTION
       cyrix  is  an  XFree86 driver for the Cyrix MediaGX (now	Natsemi	Geode)
       series of processors when using the built in video.

SUPPORTED HARDWARE
       The cyrix driver	supports the MediaGX, MediaGXi	and  MediaGXm  proces-
       sors,  as  well	as the Natsemi 'Geode' branded processors. It supports
       the CS5510, CS5520, CS5530 and CS5530A companion	chips. The driver sup-
       ports  4, 8, 15 and 16 bit deep displays	with video compression and ac-
       celeration.

       The MediaGX run length compresses its shared framebuffer, for the  best
       performance  on	a  MediaGX machine pick	backgrounds that compress well
       horizonally.

CONFIGURATION DETAILS
       Please refer to XF86Config(5) for general configuration details.	  This
       section only covers configuration details specific to this driver.

       The following driver options are	supported:

       Option "NoAccel"	"boolean"
	      Disable  or  enable  acceleration.  Default: acceleration	is en-
	      abled.

       Option "SWCursor" "boolean"
	      Disable or enable	software cursor. Default: software  cursor  is
	      enabled.

       Option "HWCursor" "boolean"
	      Disable  or  enable hardware cursor. Default: hardware cursor is
	      disabled.

       Option "ShadowFB" "boolean"
	      Disable or enable	shadow frame buffer. The shadow	buffer is nor-
	      mally only used when rotating the	screen.	The default is false.

       Option "Rotate" "CW"

       Option "Rotate" "CCW"
	      Rotate  the  display  clockwise  or  counterclockwise for	use on
	      Cyrix based tablet PC systems. This mode is currently unacceler-
	      ated.  Default: no rotation.

BUGS
       This  driver has	not been tested	on the original	5510 hardware for some
       considerable time.

       8bit mode does not currently work on the	CS5510 with external RAMDAC.

       The 5530A video overlay facility	is not currently supported.

       XFree86 uses the	MediaGX	'SoftVGA' interface.  On  a  small  number  of
       boards  this  is	 buggy	and  may result	in strange illegal instruction
       traps.

       Hardware	cursors	are not	currently supported.

SEE ALSO
       XFree86(1), XF86Config(5), xf86config(1), Xserver(1), X(7)

AUTHORS
       Authors include:	Richard	Hecker,	Annius Groenink, Dirk Hohndel, The GGI
       Project,	Alan Cox.

XFree86				 Version 4.7.0			      CYRIX(4)

NAME | SYNOPSIS | DESCRIPTION | SUPPORTED HARDWARE | CONFIGURATION DETAILS | BUGS | SEE ALSO | AUTHORS

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