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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
	      direct 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
	      default is to enable Render acceleration.

       Option "AccelMethod" "string"
	      Chooses between  available  acceleration	architectures.	 Valid
	      options  are  XAA	 and EXA.  XAA is the traditional acceleration
	      architecture 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.).
	      Default:	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
	      beware  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
	      dynamically  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

       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
	      option  to reverse the mapping of	the 2 main DDC ports. Use this
	      if the X server obviously	detects	the  wrong  display  for  each
	      connector.  This	is  typically  needed on the Radeon 9600 cards
	      bundled 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
	      default 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
	      attached.	 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
	      until  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
	      default 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
	      default 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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