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CHIPS(4)							      CHIPS(4)

NAME
       chips - Chips and Technologies video driver

SYNOPSIS
       Section "Device"
	 Identifier "devname"
	 Driver	"chips"
	 ...
       EndSection

DESCRIPTION
       chips is	an XFree86 driver for Chips and	Technologies video processors.
       The majority of the Chips and Technologies chipsets  are	 supported  by
       this  driver.  In  general  the	limitation on the capabilities of this
       driver are determined by	the chipset on which it	is run.	 Where	possi-
       ble,  this driver provides full acceleration and	supports the following
       depths: 1, 4, 8,	15, 16,	24 and on the latest chipsets an 8+16  overlay
       mode.  All  visual  types  are  supported for depth 1, 4	and 8 and both
       TrueColor and DirectColor visuals are supported where possible.	Multi-
       head configurations are supported on PCI	or AGP buses.

SUPPORTED HARDWARE
       The  chips  driver  supports  video processors on most of the bus types
       currently available.  The chipsets supported fall  into	one  of	 three
       architectural  classes.	A basic	architecture, the WinGine architecture
       and the newer HiQV architecture.

       Basic Architecture

       The supported chipsets are ct65520, ct65525, ct65530, ct65535, ct65540,
       ct65545,	ct65546	and ct65548

       Color depths 1, 4 and 8 are supported on	all chipsets, while depths 15,
       16 and 24 are supported only on	the  65540,  65545,  65546  and	 65548
       chipsets.  The driver is	accelerated when used with the 65545, 65546 or
       65548 chipsets, however the DirectColor visual is not available.

       Wingine Architecture

       The supported chipsets are ct64200 and ct64300

       Color depths 1, 4 and 8 are supported on	both  chipsets,	 while	depths
       15,  16	and 24 are supported only on the 64300 chipsets. The driver is
       accelerated when	used with the 64300 chipsets, however the  DirectColor
       visual is not available.

       HiQV Architecture

       The  supported chipsets are ct65550, ct65554, ct65555, ct68554, ct69000
       and ct69030

       Color depths 1, 4, 8,  15,  16,	24  and	 8+16  are  supported  on  all
       chipsets.   The	DirectColor  visual  is	 supported on all color	depths
       except the 8+16 overlay mode. Full acceleration	is  supplied  for  all
       chipsets.

CONFIGURATION DETAILS
       Please  refer to	XF86Config(5) for general configuration	details.  This
       section only covers configuration details specific to this driver.

       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:

	   "ct65520", "ct65525", "ct65530", "ct65535",	"ct65540",  "ct65545",
	   "ct65546",  "ct65548",  "ct65550", "ct65554", "ct65555", "ct68554",
	   "ct69000", "ct69030", "ct64200", "ct64300".

       The driver will auto-detect the amount of video memory present for  all
       chipsets.   But	maybe overridden with the VideoRam entry in the	config
       file "Device" section.

       The following driver Options are	supported, on one or more of the  sup-
       ported chipsets:

       Option "NoAccel"	"boolean"
	      Disable	or  enable  acceleration.   Default:  acceleration  is
	      enabled.

       Option "NoLinear" "boolean"
	      Disables linear addressing in  cases  where  it  is  enabled  by
	      default.	Default: off.

       Option "Linear" "boolean"
	      Enables  linear  addressing  in  cases  where  it	is disabled by
	      default.	Default: off.

       Option "HWCursor" "boolean"
	      Enable or	disable	the HW cursor.	Default: on.

       Option "SWCursor" "boolean"
	      Enable or	disable	the SW cursor.	Default: off.

       Option "STN" "boolean"
	      Force detection of STN screen type. Default: off.

       Option "UseModeline" "boolean"
	      Reprogram	flat panel timings  with  values  from	the  modeline.
	      Default: off.

       Option "FixPanelSize" "boolean"
	      Reprogram	 flat  panel  size  with  values  from	the  modeline.
	      Default: off.

       Option "NoStretch" "boolean"
	      This option disables the stretching on a mode on a flat panel to
	      fill the screen. Default:	off.

       Option "LcdCenter" "boolean"
	      Center  the  mode	 displayed  on	the  flat panel	on the screen.
	      Default: off.

       Option "HWclocks" "boolean"
	      Force the	use of fixed hardware clocks  on  chips	 that  support
	      both fixed and programmable clocks. Default: off.

       Option "UseVclk1" "boolean"
	      Use  the	Vclk1  programmable  clock on HiQV chipsets instead of
	      Vclk2. Default: off.

       Option "FPClock8" "float"

       Option "FPClock16" "float"

       Option "FPClock24" "float"

       Option "FPClock32" "float"
	      Force the	use of a particular video clock	speed for use with the
	      flat panel at a specified	depth.

       Option "MMIO" "boolean"
	      Force  the  use  of memory mapped	IO for acceleration registers.
	      Default: off.

       Option "FullMMIO" "boolean"
	      Force the	use of memory mapped IO	where it can be	used. Default:
	      off.

       Option "SuspendHack" "boolean"
	      Force  driver to leave centering and stretching registers	alone.
	      This can fix some	laptop suspend/resume problems.	Default:  off.

       Option "Overlay"
	      Enable  8+24  overlay  mode.   Only  appropriate	for  depth 24.
	      Default: off.

       Option "ColorKey" "integer"
	      Set the colormap index used for the  transparency	 key  for  the
	      depth  8	plane  when operating in 8+16 overlay mode.  The value
	      must be in the range 2-255.  Default: 255.

       Option "VideoKey" "integer"
	      This sets	the default pixel value	for the	YUV video overlay key.
	      Default: undefined.

       Option "ShadowFB" "boolean"
	      Enable or	disable	use of the shadow framebuffer layer.  Default:
	      off.

       Option "SyncOnGreen" "boolean"
	      Enable or	disable	combining the sync signals with	the green sig-
	      nal.  Default: off.

       Option "ShowCache" "boolean"
	      Enable  or  disable viewing offscreen memory. Used for debugging
	      only.  Default: off.

       Option "18bitBus" "boolean"
	      Force the	driver to assume that the flat panel has an 18bit data
	      bus.  Default: off.

       Option "Crt2Memory" "integer"
	      In  a dual-head mode (69030 only)	this option selects the	amount
	      of memory	to set aside for the second head.  If  not  specified,
	      half the memory is used.	Default: off.

       Option "DualRefresh" "integer"
	      The  69030 supports independent refresh rates on its two display
	      channels.	 This mode of operations uses additional memory	 band-
	      width  and thus limits the maximum colour	depth and refresh rate
	      that can be achieved, and	so is  off  by	default.   Using  this
	      option  forces the use of	an independent refresh rate on the two
	      screens.	Default: off.

SEE ALSO
       XFree86(1), XF86Config(5), xf86config(1), Xserver(1), X(7)

       You are also recommended	to read	the README.chips file that comes  with
       all  XFree86  distributions,  which  discusses the chips	driver in more
       detail.

AUTHORS
       Authors include:	Jon Block, Mike	Hollick, Regis Cridlig,	 Nozomi	 Ytow,
       Egbert Eich, David Bateman and Xavier Ducoin

XFree86				 Version 4.7.0			      CHIPS(4)

NAME | SYNOPSIS | DESCRIPTION | SUPPORTED HARDWARE | CONFIGURATION DETAILS | SEE ALSO | AUTHORS

Want to link to this manual page? Use this URL:
<http://www.freebsd.org/cgi/man.cgi?query=chips&sektion=4&manpath=XFree86+4.7.0>

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