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NEOMAGIC(4)		     XFree86		      NEOMAGIC(4)



NAME

       neomagic - Neomagic video driver


SYNOPSIS

       Section "Device"
	 Identifier "devname"
	 Driver "neomagic"
	 ...
       EndSection


DESCRIPTION

       neomagic	 is  an	 XFree86 driver for the Neomagic graphics
       chipsets found in many laptop computers.


SUPPORTED HARDWARE

       neomagic supports the following chipsets:


       MagicGraph 128	 (NM2070)

       MagicGraph 128V	 (NM2090)

       MagicGraph 128ZV	 (NM2093)

       MagicGraph 128ZV+ (NM2097)

       MagicGraph 128XD	 (NM2160)

       MagicGraph 256AV	 (NM2200)

       MagicGraph 256AV+ (NM2230)

       MagicGraph 256ZX	 (NM2360)

       MagicGraph 256XL+ (NM2380)

       The driver supports depths  8,  15,  16	and  24	 for  all
       chipsets	 except	 the  NM2070 which does not support depth
       24.  All depths are accelerated except for depth 24  which
       is only accelerated on NM2200 and newer models.	All visu
       als are supported in depth 8.  TrueColor	 and  DirectColor
       visuals are supported in the other depths.



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: accelera
	      tion is enabled.



4.3.0			     Version				1





NEOMAGIC(4)		     XFree86		      NEOMAGIC(4)


       Option "SWCursor" "boolean"
	      Disable or enable software cursor.  Default:  soft
	      ware  cursor  is	disable	 and a hardware cursor is
	      used.

       Option "PCIBurst" "boolean"
	      Disable  or  enable  PCI	burst  modes.	 Default:
	      enabled.

       Option "Rotate" "CW"

       Option "Rotate" "CCW"
	      Rotate  the  display clockwise or counterclockwise.
	      This mode is unaccelerated.  Default: no	rotation.

       Option "ShadowFB" "boolean"
	      Enable  or  disable  use	of the shadow framebuffer
	      layer.  Default: off.

       Option "OverlayMem" "integer"
	      Reserve the given amount of memory (in  bytes)  for
	      the XVideo overlay.  On boards with limited memory,
	      display of large XVideo buffers might fail  due  to
	      insufficient  available  memory.	Using this option
	      solves the problem at the expense of  reducing  the
	      memory   avilable	  for	other	operations.   For
	      full-resolution DVDs, 829440 bytes (720x576x2)  are
	      necessary.

       Note
       On  some laptops using the 2160 chipset (MagicGraph 128XD)
       the following options are needed to avoid a lock-up of the
       graphic engine:
	   Option "XaaNoScanlineImageWriteRect"
	   Option "XaaNoScanlineCPUToScreenColorExpandFill"



SEE ALSO

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


AUTHORS

       Authors include: Jens Owen,  Kevin  E.  Martin,	and  also
       Egbert Eich, Mark Vojkovich, Alan Hourihane.














4.3.0			     Version				2