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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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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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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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.
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