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RADEON(4)							     RADEON(4)

       radeon - ATI/AMD RADEON video driver

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

       radeon  is an Xorg driver for ATI/AMD RADEON-based video cards with the
       following features:

       · Full support for 8-, 15-, 16- and 24-bit pixel depths;
       · RandR 1.2 and RandR 1.3 support;
       · Full EXA 2D acceleration;
       · Textured XVideo acceleration including anti-tearing support  (Bicubic
	 filtering   only  available  on  R/RV3xx,  R/RV/RS4xx,	 R/RV5xx,  and
       · 3D acceleration;

       The radeon driver supports PCI, AGP, and PCIe video cards based on  the
       following ATI/AMD chips (note: list is non-exhaustive):

       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/X1550/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 2400/2600/2700/4200/4225/4250
       RV620/RV635 Radeon HD 3410/3430/3450/3470/3650/3670
       RV670	   Radeon HD 3690/3850/3870
       RS780/RS880 Radeon HD 3100/3200/3300/4100/4200/4250/4290
       RV710/RV730 Radeon						    HD
		   Radeon HD 4770/4730/4830/4850/4860/4870/4890
       CEDAR	   Radeon HD 5430/5450/6330/6350/6370
       REDWOOD	   Radeon HD 5550/5570/5650/5670/5730/5750/5770/6530/6550/6570
       JUNIPER	   Radeon HD 5750/5770/5830/5850/5870/6750/6770/6830/6850/6870
       CYPRESS	   Radeon HD 5830/5850/5870
       HEMLOCK	   Radeon HD 5970
       PALM	   Radeon HD 6310/6250
       SUMO/SUMO2  Radeon HD 6370/6380/6410/6480/6520/6530/6550/6620
       BARTS	   Radeon HD 6790/6850/6870/6950/6970/6990
       TURKS	   Radeon HD 6570/6630/6650/6670/6730/6750/6770
       CAICOS	   Radeon HD 6430/6450/6470/6490
       CAYMAN	   Radeon HD 6950/6970/6990
       ARUBA	   Radeon HD 7000 series
       TAHITI	   Radeon HD 7900 series
       PITCAIRN	   Radeon HD 7800 series
       VERDE	   Radeon HD 7700 series
       OLAND	   Radeon HD 8000 series
       HAINAN	   Radeon HD 8000 series
       BONAIRE	   Radeon HD 7790 series
       HAWAII	   Radeon R9 series

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

       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 "ZaphodHeads" "string"
	      Specify  the  RandR output(s) to use with zaphod mode for a par‐
	      ticular driver instance.	If you use this option	you  must  use
	      this option for all instances of the driver.
	      For  example:  Option  "ZaphodHeads"  "LVDS,VGA-0"  will	assign
	      xrandr outputs LVDS and VGA-0 to this instance of the driver.

       Option "ColorTiling" "boolean"
	      The framebuffer can be addressed either in linear or tiled mode.
	      Tiled  mode can provide significant performance benefits with 3D
	      applications.  Tiling will be disabled if the drm module is  too
	      old or if the current display configuration does not support it.
	      On R600+ this enables 1D tiling mode.
	      The default value is on for R/RV3XX,  R/RV4XX,  R/RV5XX,	RS6XX,
	      and Southern Islands and off for R/RV/RS1XX, R/RV/RS2XX,	RS3XX,
	      and RS690/RS780/RS880 when fast fb feature is enabled.

       Option "ColorTiling2D" "boolean"
	      The  framebuffer	can  be	 addressed either in linear, 1D, or 2D
	      tiled modes. 2D tiled mode can provide  significant  performance
	      benefits	over  1D  tiling with 3D applications.	Tiling will be
	      disabled if the drm module is too old or if the current  display
	      configuration  does  not	support	 it. KMS ColorTiling2D is only
	      supported on R600 and newer chips and requires Mesa 9.0 or newer
	      for R6xx-ARUBA and Mesa 9.2 or newer for Southern Islands.
	      The  default  value  is  on  for R/RV6XX, R/RV7XX, RS780, RS880,
	      EVERGREEN, CAYMAN, ARUBA, and Southern Islands.

       Option "EnablePageFlip" "boolean"
	      Enable DRI2 page flipping.  The default is on.  Pageflipping  is
	      supported on all radeon hardware.

       Option "AccelMethod" "string"
	      Chooses  between	available  acceleration	 architectures.	 Valid
	      values are EXA and glamor.  The default is glamor as of  TAHITI,
	      otherwise EXA.

       The following driver Options are supported for EXA :

       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 known
	      to cause instability on some chips.  The default is off.

       Option "EXAPixmaps" "boolean"
	      Under KMS, to avoid thrashing pixmaps in/out of VRAM on low mem‐
	      ory  cards, we use a heuristic based on VRAM amount to determine
	      whether to allow EXA to  use  VRAM  for  non-essential  pixmaps.
	      This option allows us to override the heuristic.	The default is
	      on with > 32MB VRAM, off with < 32MB or when fast fb feature  is
	      enabled for RS690/RS780/RS880.

       Option "SwapbuffersWait" "boolean"
	      This option controls the behavior of glXSwapBuffers and glXCopy‐
	      SubBufferMESA calls by GL applications.  If enabled,  the	 calls
	      will  avoid  tearing by making sure the display scanline is out‐
	      side of the area to be copied before the copy occurs.   If  dis‐
	      abled, no scanline synchronization is performed, meaning tearing
	      will likely occur.  Note that  when  enabled,  this  option  can
	      adversely	 affect	 the  framerate	 of  applications  that render
	      frames at less than refresh rate.

	      The default value is on.

       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_CRTC is used to control which display controller  (crtc)  the
	      textured	adapter	 synchronizes  the  screen  update  with  when
	      XV_VSYNC is enabled.  The default, 'auto'(-1), will sync to  the
	      display  controller  that	 more of the video is on; when this is
	      ambiguous, the display controller associated with the RandR pri‐
	      mary  output  is preferred.  This attribute is useful for things
	      like clone mode where the user can  best	decide	which  display
	      should be synced.	 The default is 'auto'(-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 to avoid blurred output.  Bicubic filtering  is  not
	      currently	 compatible  with  other  Xv attributes like hue, con‐
	      trast, and  brightness,  and  must  be  disabled	to  use	 those
	      attributes.  The default is 'off'(0).

       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 irc.freenode.net

	5. Query the bugtracker for radeon bugs:

	6. Submit bugs & patches:

       Authors include:
       Rickard E. (Rik) Faith	faith@precisioninsight.com
       Kevin E. Martin		kem@freedesktop.org
       Alan Hourihane		alanh@fairlite.demon.co.uk
       Marc Aurele La France	tsi@xfree86.org
       Benjamin Herrenschmidt	benh@kernel.crashing.org
       Michel Dänzer		michel@daenzer.net
       Alex Deucher		alexdeucher@gmail.com
       Bogdan D.		bogdand@users.sourceforge.net
       Eric Anholt		eric@anholt.net

X Version 11		     xf86-video-ati 7.2.99		     RADEON(4)

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