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siliconmotion(4x)					     siliconmotion(4x)

       siliconmotion - Silicon Motion video driver

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

       siliconmotion  is  an Xorg 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 supported for
       depth 8,	and TrueColor visuals are supported for	the other depths.

       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   SM731

       MSOC	   SM501,SM502

       Please  refer  to xorg.conf(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.

       Multihead mode configuration is done  through  the  RandR1.2  interface
       (see  xorg.conf(5) and xrandr(1)	for further information). Hardware ac-
       celerated screen	rotation and framebuffer resizing are  only  supported
       with  the EXA acceleration architecture (see the	AccelMethod option be-

       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",	"msoc".

       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 "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.  De-
	      fault: 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: off for SM72x and SM5xx, otherwise on.

       Option "Dualhead" "boolean"
	      Enable dualhead mode.  Currently not all chips are supported and
	      hardware video overlay (XV) support may have  some  limitations.
	      Default: off.

       Option "PanelSize" "widthxheight"
	      Override LCD panel dimension autodetection.

       Option "UseFBDev" "boolean"
	      Don't actually program the hardware mode registers, but leave it
	      as set by	the operating system. Only available  on  MSOC	chips.
	      Default: off.

       Option "CSCVideo" "boolean"
	      CSC  video  uses color space conversion to render	video directly
	      to the framebuffer, without using	an overlay.  Only available on
	      MSOC chips. Default: on.

       The following video memory Options are supported:

       Option "mclk" "integer"
	      Sets  the	memory clock. You must specify the units.  For example
	      50Mhz is the same	as 50000Khz or 50000000Hz.  On MSOC chips this
	      is  the main clock source	for all	functional blocks, such	as the
	      2D engine, GPIO, Video Engine, and DMA Engine.  This  option  is
	      only  used for debugging purposes	on MSOC	chips.	Default: probe
	      the memory clock value, and use it at server start.

       Option "mxclk" "integer"
	      Sets the memory clock. You must specify the units.  For  example
	      50Mhz  is	 the same as 50000Khz or 50000000Hz.  Clock source for
	      the local	SDRAM controller. This option  is  only	 available  on
	      MSOC chips and used only for debugging purposes.	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 "AccelMethod" "string"
	      Chooses between available	acceleration architectures.  Valid op-
	      tions are	XAA and	EXA.  XAA is the traditional acceleration  ar-
	      chitecture  and  support	for it is very stable.	EXA is a newer
	      acceleration architecture	with better performance	for the	Render
	      and Composite extensions,	but the	rendering code for it is newer
	      and possibly unstable.  The default is XAA.

       The following PCI bus Options are supported:

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

       Option "PciRetry" "boolean"
	      will allow the driver to rely on PCI Retry to program the	regis-
	      ters.  PciBurst must be enabled for this to work.	 This will in-
	      crease performance, especially for  small	 fills/blits,  because
	      the driver does not have to poll the card	before sending it com-
	      mands to make sure it is ready. It should	work  on  most	recent
	      PCI chipsets.  Default: value of PciBurst	option.

       Xorg(1),	xorg.conf(5), Xserver(1), X(7)

       For assistance with this	driver,	or Xorg	in general, check the web site
       at  If you find a problem with Xorg or have a	 ques-
       tion  not  answered in the FAQ please use our bug report	form available
       on the web site or send mail to   When  re-
       porting	problems  with the driver send as much detail as possible, in-
       cluding chipset	type,  a  server  output  log,	and  operating	system

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

X Version 11		xf86-video-siliconmotion 1.7.9	     siliconmotion(4x)


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