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 Xorg driver for Silicon Motion based video cards.  The driver is fully accelerated, and provides sup-
       port 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.

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   SM731

       MSOC        SM501,SM502

CONFIGURATION DETAILS
       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 informa-
       tion). Hardware accelerated screen rotation and framebuffer resizing are only supported with the EXA acceleration  archi-
       tecture (see the AccelMethod option below).

       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.  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: 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  debug-
              ging 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 rou-
              tines.  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 options are XAA and  EXA.   XAA  is  the  traditional
              acceleration architecture 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: on.

       Option "PciRetry" "boolean"
              will allow the driver to rely on PCI Retry to program the registers.  PciBurst 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
              card before sending it commands to make sure it is ready. It should work on most recent  PCI  chipsets.   Default:
              value of PciBurst option.


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


SUPPORT
       For assistance with this driver, or Xorg in general, check the web site at http://www.x.org/.  If you find a problem with
       Xorg or have a question not answered in the FAQ please use our bug report form available on the web site or send mail  to
       xorgATlists.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.



X Version 11                                     xf86-video-siliconmotion 1.7.3                                 siliconmotion(4)