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.\" Header: //Mercury/Projects/archives/XFree86/4.0/siliconmotion.cpp-arc 1.4 29 Nov 2000 14:12:56 Frido $
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.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/siliconmotion/siliconmotion.man,v 1.4 2001/12/20 21:35:38 eich Exp $
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.\" shorthand for double quote that works everywhere.
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.TH siliconmotion __drivermansuffix__ __vendorversion__
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siliconmotion \- Silicon Motion video driver
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.B "Section \*qDevice\*q"
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.BI " Identifier \*q" devname \*q
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.B " Driver \*qsiliconmotion\*q"
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"optionname" ["optionvalue"]]
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is an XFree86 driver for Silicon Motion based video cards. The driver is fully
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accelerated, and provides support for the following framebuffer depths:
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visual types are supported for depth 8, and TrueColor
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visuals are supported for the other depths.
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.SH SUPPORTED HARDWARE
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driver supports PCI and AGP video cards based on the following Silicon Motion chips:
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.SH CONFIGURATION DETAILS
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Please refer to XF86Config(__filemansuffix__) for general configuration
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details. This section only covers configuration details specific to this
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driver. All options names are case and white space insensitive when
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parsed by the server, for example, "lynxe" and "LynxE" are equivalent.
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The driver auto-detects the chipset type, but the following
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names may optionally be specified in the config file
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section, and will override the auto-detection:
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"lynx", "lynxe", "lynx3d", "lynxem", "lynxem+", "lynx3dm".
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.BI "Option \*qHWCursor\*q \*q" boolean \*q
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Enable or disable the HW cursor. Default: on.
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.BI "Option \*qSWCursor\*q \*q" boolean \*q
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Inverse of "HWCursor". Default: off.
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.BI "Option \*qShadowFB\*q \*q" boolean \*q
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Use shadow framebuffer. Default: off.
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.BI "Option \*qRotate\*q \*qCW\*q"
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.BI "Option \*qRotate\*q \*qCCW\*q"
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Rotate the screen CW - clockwise or CCW - counter clockwise.
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Uses ShadowFB. Default: no rotation.
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.BI "Option \*qVideoKey\*q \*q" integer \*q
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Set the video color key. Default: a little off full blue.
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.BI "Option \*qByteSwap\*q \*q" boolean \*q
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Turn on byte swapping for capturing using SMI demo board. Default: off.
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.BI "Option \*qInterlaced\*q \*q" boolean \*q
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Turn on interlaced video capturing. Default: off.
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.BI "Option \*qUseBIOS\*q \*q" boolean \*q
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Use the BIOS to set the modes. This is used for custom panel timings.
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.BI "Option \*qZoomOnLCD\*q \*q" boolean \*q
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Allow changing resolution on LCD (Ctrl-Alt-Plus and Ctrl-Alt-Minus).
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The following video memory
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.BI "Option \*qset_mclk\*q \*q" integer \*q
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sets the memory clock, where
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<= 100000. Default: probe the memory clock value,
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and use it at server start.
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The following acceleration and graphics engine
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.B "Option \*qNoAccel\*q"
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Disable acceleration. Very useful for determining if the
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driver has problems with drawing and acceleration routines. This is the first
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option to try if your server runs but you see graphic corruption on the screen.
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Using it decreases performance, as it uses software emulation for drawing
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operations the video driver can accelerate with hardware.
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Default: acceleration is enabled.
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.B "Option \*qfifo_aggressive\*q"
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.B "Option \*qfifo_moderate\*q"
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.B "Option \*qfifo_conservative\*q"
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for the threshold at which the pixel FIFO takes over the internal
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memory bus to refill itself. The smaller this threshold, the better
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the acceleration performance of the card. You may try the fastest
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.RB ( "fifo_aggressive" )
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and move down if you encounter pixel corruption.
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The optimal setting will probably depend on dot-clock and on color
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depth. Note that specifying any of these options will also alter other
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memory settings which may increase performance, so trying
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.B "fifo_conservative"
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will in most cases be a slight benefit (this uses the chip defaults).
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If pixel corruption or transient streaking is observed during drawing
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operations then removing any fifo options is recommended. Default: none.
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The following PCI bus
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.BI "Option \*qpci_burst\*q \*q" boolean \*q
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will enable PCI burst mode. This should work on all but a
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few broken PCI chipsets, and will increase performance. Default: off.
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.BI "Option \*qpci_retry\*q \*q" boolean \*q
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will allow the driver to rely on PCI Retry to program the
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must be enabled for this to work.
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This will increase performance, especially for small fills/blits,
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because the driver does not have to poll the ViRGE before sending it
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commands to make sure it is ready. It should work on most
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recent PCI chipsets. Default: off.
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The following additional
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.BI "Option \*qShowCache\*q \*q" boolean \*q
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Enable or disable viewing offscreen cache memory. A
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development debug option. Default: off.
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XFree86(1), XF86Config(__filemansuffix__), xf86config(1), Xserver(1), X(__miscmansuffix__)
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For assistance with this driver, or XFree86 in general, check the XFree86 web
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site at http://www.xfree86.org. A FAQ is available on the web site at
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http://www.xfree86.org/FAQ/. If you find a problem with XFree86 or have a
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question not answered in the FAQ please use our bug report form available on
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the web site or send mail to XFree86@XFree86.org. When reporting problems
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with the driver send as much detail as possible, including chipset type, a
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server output log, and operating system specifics.