MirOS Manual: siliconmotion(4)


siliconmotion(4)    UNIX Programmer's Manual     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 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   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 exam-
     ple,  "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".

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siliconmotion(4)    UNIX Programmer's Manual     siliconmotion(4)

     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:

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siliconmotion(4)    UNIX Programmer's Manual     siliconmotion(4)

     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: accelera-
          tion 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_conservative 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 perfor-
          mance.  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 sending it commands to make sure
          it is ready. It should work on most recent PCI chip-
          sets.  Default: off.

     The following additional Options are supported:

     Option "ShowCache" "boolean"
          Enable or disable viewing offscreen cache memory.  A

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siliconmotion(4)    UNIX Programmer's Manual     siliconmotion(4)

          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 Mar-
     ineau, Mark Vojkovich, Frido Garritsen, Corvin Zahn.

XFree86                   Version 4.5.0                         4

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