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siliconmotion(4)					      siliconmotion(4)

NAME
       siliconmotion - Silicon Motion video driver

SYNOPSIS
       Section "Device"
	 Identifier "devname"
	 Driver	"siliconmotion"
	 ...
	 [ Option "optionname" ["optionvalue"]]
       EndSection

DESCRIPTION
       siliconmotion  is  an  XFree86  driver  for  Silicon Motion based video
       cards.  The driver is fully accelerated,	and provides support  for  the
       following framebuffer depths: 8,	16, and	24.  All visual	types are sup-
       ported for depth	8, and TrueColor visuals are supported for  the	 other
       depths.

SUPPORTED HARDWARE
       The  siliconmotion driver supports PCI and AGP video cards based	on the
       following Silicon Motion	chips:

       Lynx	   SM910

       LynxE	   SM810

       Lynx3D	   SM820

       LynxEM	   SM710

       LynxEM+	   SM712

       Lynx3DM	   SM720

       Cougar3DR   SM730

CONFIGURATION DETAILS
       Please refer to XF86Config(5) for general configuration details.	  This
       section only covers configuration details specific to this driver.  All
       options names are case and white	space insensitive when parsed  by  the
       server, for example,  "lynxe" and "LynxE" are equivalent.

       The  driver  auto-detects  the  chipset type, but the following ChipSet
       names may optionally be specified in the	config file "Device"  section,
       and will	override the auto-detection:

	   "lynx",   "lynxe",	"lynx3d",   "lynxem",	"lynxem+",  "lynx3dm",
	   "cougar3dr".

       The following Cursor Options are	supported:

       Option "HWCursor" "boolean"
	      Enable or	disable	the HW cursor.	Default: on.

       Option "SWCursor" "boolean"
	      Inverse of "HWCursor".  Default: off.

       The following display Options are supported:

       Option "ShadowFB" "boolean"
	      Use shadow framebuffer.  Default:	off.

       Option "Rotate" "CW"

       Option "Rotate" "CCW"
	      Rotate the screen	CW - clockwise or  CCW	-  counter  clockwise.
	      Uses ShadowFB.  Default: no rotation.

       Option "VideoKey" "integer"
	      Set the video color key.	Default: a little off full blue.

       Option "ByteSwap" "boolean"
	      Turn  on	byte  swapping	for  capturing	using  SMI demo	board.
	      Default: off.

       Option "Interlaced" "boolean"
	      Turn on interlaced video capturing.  Default: off.

       Option "UseBIOS"	"boolean"
	      Use the BIOS to set the modes. This is  used  for	 custom	 panel
	      timings.	Default: on.

       Option "ZoomOnLCD" "boolean"
	      Allow  changing  resolution  on LCD (Ctrl-Alt-Plus and Ctrl-Alt-
	      Minus).  Default:	off.

       The following video memory Options are supported:

       Option "set_mclk" "integer"
	      sets the memory clock, where integer is in kHz, and  integer  <=
	      100000.	Default:  probe	 the memory clock value, and use it at
	      server start.

       The following acceleration and graphics engine Options are supported:

       Option "NoAccel"
	      Disable acceleration.  Very useful for determining if the	driver
	      has  problems  with  drawing and acceleration routines.  This is
	      the first	option to try if your server runs but you see  graphic
	      corruption on the	screen.	 Using it decreases performance, as it
	      uses software emulation for drawing operations the video	driver
	      can accelerate with hardware.  Default: acceleration is enabled.

       Option "fifo_aggressive"

       Option "fifo_moderate"

       Option "fifo_conservative"
	      alter the	settings for the threshold at  which  the  pixel  FIFO
	      takes over the internal memory bus to refill itself. The smaller
	      this threshold, the better the acceleration performance  of  the
	      card. You	may try	the fastest setting (fifo_aggressive) and move
	      down if you encounter pixel  corruption.	 The  optimal  setting
	      will  probably depend on dot-clock and on	color depth. Note that
	      specifying any of	these options will  also  alter	 other	memory
	      settings	which may increase performance,	so trying fifo_conser-
	      vative will in most cases	be a slight  benefit  (this  uses  the
	      chip  defaults).	 If pixel corruption or	transient streaking is
	      observed	during	drawing	 operations  then  removing  any  fifo
	      options is recommended.  Default:	none.

       The following PCI bus Options are supported:

       Option "pci_burst" "boolean"
	      will  enable  PCI	 burst mode. This should work on all but a few
	      broken PCI chipsets, and will  increase  performance.   Default:
	      off.

       Option "pci_retry" "boolean"
	      will  allow the driver to	rely on	PCI Retry to program the ViRGE
	      registers.  pci_burst must be enabled for	this  to  work.	  This
	      will  increase  performance,  especially	for small fills/blits,
	      because the driver does not have to poll the ViRGE before	 send-
	      ing it commands to make sure it is ready.	It should work on most
	      recent PCI chipsets.  Default: off.

       The following additional	Options	are supported:

       Option "ShowCache" "boolean"
	      Enable or	disable	viewing	offscreen cache	memory.	 A development
	      debug option.  Default: off.

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

SUPPORT
       For  assistance	with  this  driver,  or	 XFree86 in general, check the
       XFree86 web site	at http://www.xfree86.org.  A FAQ is available on  the
       web  site  at  http://www.xfree86.org/FAQ/.  If you find	a problem with
       XFree86 or have a question not answered in the FAQ please use  our  bug
       report	form   available   on	the   web   site   or	send  mail  to
       XFree86@XFree86.org.  When reporting problems with the driver  send  as
       much  detail  as	possible, including chipset type, a server output log,
       and operating system specifics.

AUTHORS
       Kevin Brosius, Matt Grossman, Harald Koenig, Sebastien  Marineau,  Mark
       Vojkovich, Frido	Garritsen, Corvin Zahn.

XFree86				 Version 4.7.0		      siliconmotion(4)

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

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