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RADEON(4x)							    RADEON(4x)

       radeon -	ATI RADEON video driver

       Section "Device"
	 Identifier "devname"
	 Driver	"radeon"

       radeon is an Xorg driver	for ATI	RADEON based video cards with the fol-
       lowing features:

       o Full support for 8, 15, 16 and	24 bit pixel depths;
       o RandR 1.2 and RandR 1.3 support;
       o TV-out	support	(only on R/RV/RS1xx, R/RV/RS2xx,  R/RV/RS3xx.  Experi-
	 mental	support	on R/RV5xx, R/RV6xx, and R/RV7xx through the ATOMTvOut
       o Full EXA 2D acceleration;
       o Full XAA 2D acceleration (only	on R/RV/RS1xx, R/RV/RS2xx, R/RV/RS3xx,
	 R/RV/RS4xx, R/RV5xx, RS6xx. XAA Render	acceleration supported only on
	 R/RV100, R/RV/RS2xx and RS3xx);
       o Textured XVideo acceleration including	anti-tearing support  (Bicubic
	 filtering only	available on R/RV3xx, R/RV/RS4xx, R/RV5xx, and RS6xx);
       o Overlay   XVideo   acceleration   (only  on  R/RV/RS1xx,  R/RV/RS2xx,
	 R/RV/RS3xx, R/RV/RS4xx);
       o 3D acceleration (not supported	on R/RV6xx and R/RV/RS7xx);

       The radeon driver supports PCI, AGP, and	PCIE video cards based on  the
       following ATI chips:

       R100	   Radeon 7200
       RV100	   Radeon 7000(VE), M6,	RN50/ES1000
       RS100	   Radeon IGP320(M)
       RV200	   Radeon 7500,	M7, FireGL 7800
       RS200	   Radeon IGP330(M)/IGP340(M)
       RS250	   Radeon Mobility 7000	IGP
       R200	   Radeon 8500,	9100, FireGL 8800/8700
       RV250	   Radeon 9000PRO/9000,	M9
       RV280	   Radeon 9200PRO/9200/9200SE/9250, M9+
       RS300	   Radeon 9100 IGP
       RS350	   Radeon 9200 IGP
       RS400/RS480 Radeon XPRESS 200(M)/1100 IGP
       R300	   Radeon 9700PRO/9700/9500PRO/9500/9600TX, FireGL X1/Z1
       R350	   Radeon 9800PRO/9800SE/9800, FireGL X2
       R360	   Radeon 9800XT
       RV350	   Radeon 9600PRO/9600SE/9600/9550, M10/M11, FireGL T2
       RV360	   Radeon 9600XT
       RV370	   Radeon X300,	M22
       RV380	   Radeon X600,	M24
       RV410	   Radeon X700,	M26 PCIE
       R420	   Radeon X800 AGP
       R423/R430   Radeon X800,	M28 PCIE
       R480/R481   Radeon X850 PCIE/AGP
		   Radeon X1300/X1400/X1500/X2300
       R520	   Radeon X1800
       RV530/RV560 Radeon X1600/X1650/X1700
       RV570/R580  Radeon X1900/X1950
		   Radeon X1200/X1250/X2100
       R600	   Radeon HD 2900
       RV610/RV630 Radeon HD 2400/2600
       RV620/RV635 Radeon HD 3450/3470
       RV670	   Radeon HD 3850/3870
       RS780	   Radeon HD 3100/3200/3300
       RV710	   Radeon HD 4350/4550
       RV730	   Radeon HD 4650/4670
       RV770	   Radeon HD 4850/4870

       Please  refer  to xorg.conf(5) for general configuration	details.  This
       section only covers configuration details specific to this driver.

       The driver auto-detects all device information necessary	to  initialize
       the  card.   However, if	you have problems with auto-detection, you can

	   VideoRam - in kilobytes
	   MemBase  - physical address of the linear framebuffer
	   IOBase   - physical address of the MMIO registers
	   ChipID   - PCI DEVICE ID

       In addition, the	following driver Options are supported:

       Option "SWcursor" "boolean"
	      Selects software cursor.	The default is off.

       Option "NoAccel"	"boolean"
	      Enables or disables all hardware acceleration.
	      The default is to	enable hardware	acceleration.

       Option "Dac6Bit"	"boolean"
	      Enables or disables the use of 6 bits per	color  component  when
	      in  8  bpp mode (emulates	VGA mode).  By default,	all 8 bits per
	      color component are used.
	      The default is off.

       Option "VideoKey" "integer"
	      This overrides the default pixel value for the YUV video overlay
	      The default value	is 0x1E.

       Option "ScalerWidth" "integer"
	      This sets	the overlay scaler buffer width. Accepted values range
	      from 1024	to 2048, divisible by 64, values other than  1536  and
	      1920 may not make	sense though. Should be	set automatically, but
	      noone has	a clue what the	limit is for which chip. If you	 think
	      quality is not optimal when playing back HD video	(with horizon-
	      tal resolution larger than this setting),	increase  this	value,
	      if  you  get an empty area at the	right (usually pink), decrease
	      it. Note this only affects the "true" overlay via	xv,  it	 won't
	      affect things like textured video.
	      The default value	is either 1536 (for most chips)	or 1920.

       Option "AGPMode"	"integer"
	      Set AGP data transfer rate.  (used only when DRI is enabled)
	      1	     --	1x (before AGP v3 only)
	      2	     --	2x (before AGP v3 only)
	      4	     --	4x
	      8	     --	8x (AGP	v3 only)
	      others --	invalid
	      The default is to	leave it unchanged.

       Option "AGPFastWrite" "boolean"
	      Enable  AGP  fast	writes.	 Enabling this is frequently the cause
	      of instability. Used only	when the DRI is	enabled. If you	enable
	      this option you will get *NO* support from developers.
	      The default is off.

       Option "BusType"	"string"
	      Used  to	replace	 previous ForcePCIMode option.	Should only be
	      used when	driver's bus detection is incorrect  or	 you  want  to
	      force  a	AGP card to PCI	mode. Should NEVER force a PCI card to
	      AGP bus.
	      PCI    --	PCI bus
	      AGP    --	AGP bus
	      PCIE   --	PCI Express bus
	      (used only when DRI is enabled)
	      The default is auto detect.

       Option "DisplayPriority"	"string"
	      Used to prevent flickering or tearing problem caused by  display
	      buffer underflow.
	      AUTO   --	Driver calculated (default).
	      BIOS   --	Remain unchanged from BIOS setting.
			Use this if the	calculation is not correct
			for your card.
	      HIGH   --	Force to the highest priority.
			Use this if you	have problem with above	options.
			This may affect	performance slightly.
	      The default value	is AUTO.

       Option "ColorTiling" "boolean"
	      Frame  buffer  can  be addressed either in linear	or tiled mode.
	      Tiled mode can provide significant performance benefits with  3D
	      applications,  for  2D  it shouldn't matter much.	Tiling will be
	      disabled if the virtual x	resolution exceeds 2048	(3968 for R300
	      and above), or if	DRI is enabled the drm module is too old.
	      If  this option is enabled, a new	dri driver is required for di-
	      rect rendering too.
	      Color tiling will	be automatically  disabled  in	interlaced  or
	      doublescan screen	modes.
	      The default value	is on.

       Option "IgnoreEDID" "boolean"
	      Do  not use EDID data for	mode validation, but DDC is still used
	      for monitor detection. This is different from NoDDC option.
	      The default value	is off.

       Option "PanelSize" "string"
	      Should only be used when driver cannot detect the	correct	 panel
	      size.   Apply  to	 both desktop (TMDS) and laptop	(LVDS) digital
	      panels.  When a valid panel size is specified, the timings  col-
	      lected  from  DDC	and BIOS will not be used. If you have a panel
	      with timings different from that of a standard  VESA  mode,  you
	      have to provide this information through the Modeline.
	      For example, Option "PanelSize" "1400x1050"
	      The default value	is none.

       Option "EnablePageFlip" "boolean"
	      Enable  page  flipping  for  3D acceleration. This will increase
	      performance but not work correctly in some rare cases, hence the
	      default  is  off.	  It is	currently only supported on R/RV/RS4xx
	      and older	hardware.

       Option "ForceMinDotClock" "frequency"
	      Override minimum dot clock. Some Radeon BIOSes report a  minimum
	      dot  clock  unsuitable  (too  high) for use with television sets
	      even when	they actually can produce lower	dot clocks. If this is
	      the  case	you can	override the value here.  Note that using this
	      option may damage	your hardware.	You have been warned. The fre-
	      quency parameter may be specified	as a float value with standard
	      suffixes like "k", "kHz",	"M", "MHz".

       Option "RenderAccel" "boolean"
	      Enables or disables hardware Render acceleration.	  It  is  sup-
	      ported  on  all  Radeon cards when using EXA acceleration	and on
	      Radeon R/RV/RS1xx, R/RV/RS2xx and	RS3xx when usig	XAA.  The  de-
	      fault is to enable Render	acceleration.

       Option "AccelMethod" "string"
	      Chooses between available	acceleration architectures.  Valid op-
	      tions are	XAA and	EXA.  XAA is the traditional acceleration  ar-
	      chitecture  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.

       Option "AccelDFS" "boolean"
	      Use or don't use accelerated EXA	DownloadFromScreen  hook  when
	      possible	(only  when  Direct  Rendering is enabled, e.g.).  De-
	      fault: off with AGP due to issues	with GPU->host transfers  with
	      some AGP bridges,	on otherwise.

       Option "FBTexPercent" "integer"
	      Amount  of video RAM to reserve for OpenGL textures, in percent.
	      With EXA,	the remainder of video RAM is reserved	for  EXA  off-
	      screen  management.  Specifying 0	results	in all offscreen video
	      RAM being	reserved for EXA and only GART memory being  available
	      for  OpenGL  textures. This may improve EXA performance, but be-
	      ware that	it may cause problems with OpenGL  drivers  from  Mesa
	      versions	older  than 6.4. With XAA, specifying lower percentage
	      than what	gets reserved without this option has no  effect,  but
	      the driver tries to increase the video RAM reserved for textures
	      to the amount specified roughly.	Default: 50.

       Option "DepthBits" "integer"
	      Precision	in bits	per pixel of the shared	depth buffer used  for
	      3D  acceleration.	  Valid	values are 16 and 24. When this	is 24,
	      there will also be a hardware accelerated	 stencil  buffer,  but
	      the  combined  depth/stencil  buffer  will take up twice as much
	      video RAM	as when	it's 16.  Default:  The	 same  as  the	screen

       Option "DMAForXv" "boolean"
	      Try  or  don't  try to use DMA for Xv image transfers. This will
	      reduce CPU usage when playing big	 videos	 like  DVDs,  but  may
	      cause instabilities.  Default: on.

       Option "SubPixelOrder" "string"
	      Force subpixel order to specified	order.	Subpixel order is used
	      for subpixel decimation on flat panels.
	      NONE   --	No subpixel (CRT like displays)
	      RGB    --	in horizontal RGB order	(most flat panels)
	      BGR    --	in horizontal BGR order	(some flat panels)

	      This option is intended to be used in following cases:
	      1. The default subpixel order is incorrect for your panel.
	      2. Enable	subpixel decimation on analog panels.
	      3. Adjust	to one display type in dual-head clone mode setup.
	      4. Get better performance	with Render  acceleration  on  digital
	      panels (use NONE setting).
	      The default is NONE for CRT, RGB for digital panels

       Option "DynamicClocks" "boolean"
	      Enable dynamic clock scaling.  The on-chip clocks	will scale dy-
	      namically	based on usage.	This can help reduce heat and increase
	      battery life by reducing power usage.  Some users	report reduced
	      3D performance with this enabled.	 The default is	off.

       Option "VGAAccess" "boolean"
	      Tell the driver if it can	do legacy VGA IOs to the card. This is
	      necessary	 for properly resuming consoles	when in	VGA text mode,
	      but shouldn't be if the console is using radeonfb	or some	 other
	      graphic  mode  driver.  Some  platforms like PowerPC have	issues
	      with those, and they aren't necessary unless  you	 have  a  real
	      text  mode  in  console. The default is off on PowerPC and SPARC
	      and on on	other architectures.

       Option "ReverseDDC" "boolean"
	      When BIOS	connector informations aren't available, use this  op-
	      tion to reverse the mapping of the 2 main	DDC ports. Use this if
	      the X server obviously detects the wrong display for  each  con-
	      nector.  This  is	typically needed on the	Radeon 9600 cards bun-
	      dled with	Apple G5s. The default is off.

       Option "LVDSProbePLL" "boolean"
	      When BIOS	panel informations aren't available  (like  on	Power-
	      Books),  it  may still be	necessary to use the firmware provided
	      PLL values for the panel or flickering will happen. This	option
	      will  force  probing of the current value	programmed in the chip
	      when X is	launched in that case.	This is	only useful  for  LVDS
	      panels (laptop internal panels).	The default is on.

       Option "TVDACLoadDetect"	"boolean"
	      Enable  load  detection  on  the	TV DAC.	 The TV	DAC is used to
	      drive both TV-out	and analog monitors. Load detection  is	 often
	      unreliable  in the TV DAC	so it is disabled by default.  The de-
	      fault is off.

       Option "DefaultTMDSPLL" "boolean"
	      Use the default driver provided TMDS PLL values rather than  the
	      ones  provided  by  the  bios.  This option has no effect	on Mac
	      cards.  Enable this option if you	are having problems with a DVI
	      monitor using the	internal TMDS controller.  The default is off.

       Option "DefaultTVDACAdj"	"boolean"
	      Use the default driver provided TVDAC Adj	values rather than the
	      ones provided by the bios. This option  has  no  effect  on  Mac
	      cards.   Enable  this  option  if	you are	having problems	with a
	      washed out display on the	secondary DAC.	The default is off.

       Option "DRI" "boolean"
	      Enable DRI support.  This	option allows you to enable to disable
	      the DRI.	The default is off for RN50/ES1000 and on for others.

       Option "DefaultConnectorTable" "boolean"
	      Enable  this option to skip the BIOS connector table parsing and
	      use the driver defaults for each chip.  The default is off

       Option "MacModel" "string"
	      Used to specify Mac models for connector tables and quirks.   If
	      you  have	 a powerbook or	mini with DVI that does	not work prop-
	      erly, try	the alternate options as Apple does not	seem  to  pro-
	      vide a good way of knowing whether they use internal or external
	      TMDS for DVI.  Only valid	on PowerPC.  On	Linux, the driver will
	      attempt to detect	the MacModel automatically.
	      ibook		   -- ibooks
	      powerbook-external   -- Powerbooks with external DVI
	      powerbook-internal   -- Powerbooks with integrated DVI
	      powerbook-vga	   -- Powerbooks with VGA rather than DVI
	      mini-external	   -- Mac Mini with external DVI
	      mini-internal	   -- Mac Mini with integrated DVI
	      imac-g5-isight	   -- iMac G5 iSight
	      emac		   -- eMac G4
	      The default value	is undefined.

       Option "TVStandard" "string"
	      Used to specify the default TV standard if you want to use some-
	      thing other than the bios	default. Valid options are:
	      The default value	is undefined.

       Option "ForceTVOut" "boolean"
	      Enable this option to force TV-out to always be detected as  at-
	      tached.  The default is off

       Option "IgnoreLidStatus"	"boolean"
	      Enable  this  option  to ignore lid status on laptops and	always
	      detect LVDS as attached.	The default is on.

       Option "Int10" "boolean"
	      This option allows you to	 disable  int10	 initialization.   Set
	      this to False if you are experiencing a hang when	initializing a
	      secondary	card.  The default is on.

       Option "EXAVSync" "boolean"
	      This option attempts to avoid tearing by stalling	the engine un-
	      til  the	display	 controller has	passed the destination region.
	      It reduces tearing at the	cost of	performance and	has been  know
	      to cause instability on some chips.  The default is off.

       Option "ATOMTvOut" "boolean"
	      This  option  enables  experimental  TV-out support for R/RV5xx,
	      R/RV6xx, and R/RV7xx atombios chips. TV-out is experimental  and
	      may  not	function on these chips	as well	as hoped for.  The de-
	      fault is off.

       Option "R4xxATOM" "boolean"
	      This option enables modesetting on R/RV4xx chips using atombios.
	      The default is off.

       The driver supports the following X11 Xv	attributes for Textured	Video.
       You can use the "xvattr"	tool to	query/set those	attributes at runtime.

	      XV_VSYNC is used to control whether  textured  adapter  synchro-
	      nizes the	screen update to the monitor vertical refresh to elim-
	      inate tearing.  It has two values: 'off'(0) and 'on'(1). The de-
	      fault is 'on'(1).

	      XV_BICUBIC  is  used  to control whether textured	adapter	should
	      apply a bicubic filter to	smooth the output. It has  three  val-
	      ues:  'off'(0),  'on'(1)	and 'auto'(2). 'off' means never apply
	      the filter, 'on' means always apply the filter and 'auto'	 means
	      apply  the  filter  only if the X	and Y sizes are	scaled to more
	      than double, this	to  avoid  blurred  output.   The  default  is

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

	1. Wiki	page:

	2. Overview about radeon development code:

	3. Mailing list:

	4. IRC channel:
	   #radeon on

	5. Query the bugtracker	for radeon bugs:

	6. Submit bugs & patches:

       Authors include:
       Rickard E. (Rik)	Faith
       Kevin E.	Martin
       Alan Hourihane
       Marc Aurele La France
       Benjamin	Herrenschmidt
       Michel Danzer
       Alex Deucher
       Bogdan D.
       Eric Anholt

X Version 11		     xf86-video-ati 6.12.2		    RADEON(4x)


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