Provided by: xserver-xorg-video-radeonhd_1.3.0-2_i386 bug


       radeonhd - AMD GPG (ATI) R5xx/R6xx/R7xx video driver


       Section "Device"
         Identifier "devname"
         Driver "radeonhd"


       radeonhd is an Xorg driver for AMD GPG (ATI) R5xx/R6xx/R7xx based video

       At the time of this writing, radeonhd has the following limitations:

       · Support for hardware-based 2D  acceleration  and  Xvideo  needs  more
         testing on R6xx and R7xx based cards.

       · No TV and Component connector support so far.

       · After  using  the fglrx driver, radeonhd might fail to work properly.
         This combination is not and probably  will  never  be  supported.   A
         reboot  fixes  problems  in  most  cases,  sometimes  a powercycle is
         necessary.  Unloading the kernel module is typically not enough.

       A more up-to-date list can be found on the wiki page.


       The radeonhd driver supports video cards based  on  the  following  ATI

       RV505   Radeon X1550, X1550 64bit
       RV515   Radeon X1300, X1550, X1600; FireGL V3300, V3350
       RV516   Radeon X1300, X1550, X1550 64-bit, X1600; FireMV 2250
       R520    Radeon X1800; FireGL V5300, V7200, V7300, V7350
       RV530   Radeon X1300 XT, X1600, X1600 Pro, X1650; FireGL V3400, V5200
       RV535   Radeon X1300, X1650
       RV550   Radeon X2300 HD
       RV560   Radeon X1650
       RV570   Radeon X1950, X1950 GT; FireGL V7400
       R580    Radeon X1900, X1950; AMD Stream Processor
       R600    Radeon HD 2900 GT/Pro/XT; FireGL V7600/V8600/V8650
       RV610   Radeon HD 2350, HD 2400 Pro/XT, HD 2400 Pro AGP; FireGL V4000
       RV620   Radeon HD 3450, HD 3470
       RV630   Radeon  HD  2600  LE/Pro/XT,  HD 2600 Pro/XT AGP; Gemini RV630;
               FireGL V3600/V5600
       RV635   Radeon HD 3650, HD 3670
       RV670   Radeon HD 3690, 3850, HD 3870, FireGL V7700, FireStream 9170
       R680    Radeon HD 3870 X2
       M52     Mobility Radeon X1300
       M54     Mobility Radeon X1400; M54-GL
       M56     Mobility Radeon X1600; Mobility FireGL V5200
       M58     Mobility Radeon X1800, X1800 XT; Mobility FireGL V7100, V7200
       M62     Mobility Radeon X1350
       M64     Mobility Radeon X1450, X2300
       M66     Mobility Radeon X1700, X1700 XT; FireGL V5250
       M68     Mobility Radeon X1900
       M71     Mobility Radeon HD 2300
       M72     Mobility Radeon HD 2400; Radeon E2400
       M74     Mobility Radeon HD 2400 XT
       M76     Mobility Radeon HD 2600; (Gemini ATI) Mobility Radeon  HD  2600
       M82     Mobility Radeon HD 3400
       M86     Mobility Radeon HD 3650, HD 3670, Mobility FireGL V5700
       M88     Mobility Radeon HD 3850, HD 3850 X2, HD 3870, HD3870 X2
       RS600   Radeon Xpress 1200, Xpress 1250
       RS690   Radeon X1200, X1250, X1270
       RS740   RS740, RS740M
       RS780   Radeon HD 3100/3200/3300 Series
       R700    Radeon R700
       RV710   Radeon HD4570, HD4350
       RV730   Radeon HD4670, HD4650
       RV770   Radeon HD 4800 Series; Everest, K2, Denali ATI FirePro
       RV790   Radeon HD 4890
       M92     Mobility Radeon HD4330, HD4530, HD4570. EXPERIMENTAL
       M93     Mobility Radeon M93. EXPERIMENTAL AND UNTESTED
       M96     Mobility Radeon HD4600
       M97     Mobility Radeon HD4860. EXPERIMENTAL AND UNTESTED
       M98     Mobility Radeon HD4850, HD4870


       Please refer to xorg.conf(5) for general configuration details.

       This section only covers configuration options specific to this driver,
       for Section "Device".  Some options may be deprecated and considered to
       be removed or replaced by better implementations soon.

       Option "AccelMethod" "none|default|shadowfb|xaa|exa"
              Use the indicated accleration method.

              none     does not accelerate anything at all. Discouraged.
              shadowfb is  a  software-only  acceleration  technique. Does not
                       work together with DRI at the moment.
              xaa      is the older  but  stable  hardware-based  acceleration
              exa      is  the  newer  but  more  experimental  hardware-based
                       acceleration technique.

              Default value  depends  on  the  chipset  and  the  acceleration
              techniques available for that chipset, and is chosen to give the
              best user experience.

              Note that R600 and above require DRI to be enabled for "exa".

              Rotation  isn’t  supported  for  the  AccelMethods  "none"   and

       Option "DRI"
              Use  this  option  to  enable  3D and Xv acceleration using DRI.
              Default is on.

       Option "OffscreenSize" "<integer>M|<integer>%"
              Specify the amount of  framebuffer  memory  used  for  offscreen
              pixmaps,  in  megabytes  or  percent  of  available memory. This
              amount of memory is not available for DRI. Certain hardware  and
              software limits apply. The default is 10%.

       Option "ScaleType" "none|center|scale|scale_keep_aspect_ratio|default"
              Sets  the scaling mode for laptop flat panels when used together
              with an external  screen.  The  scaling  engine  is  capable  of
              scaling both up and down.

              none     means  to  not  scale  at  all,  i.e. the image will be
                       displayed in the top left corner of the  panel  if  the
                       resolution  of  the  external display is lower than the
                       panel resolution.
              center   means not to scale but center the image  on  the  panel
                       i.e.  apply a black frame around the image on the panel
                       if the resolution of the external display is lower than
                       the panel resolution.
              scale    means to always scale to the resolution of the external
                       display filling the entire panel.
                       scales the panel display but keeps the aspect ratio  of
                       the  external  display,  which  means  if  the external
                       display has a different aspect ratio than the panel  it
                       black  borders  will  be added to the top and bottom or
                       left and right.
              default  keeps  the  aspect  ratio,  but  does  not   to   scale

              The default is to keep the aspect ratio.

       Option "NoRandr"
              Disable  RandR  1.2  support.  This turns the driver back to use
              standard modesetting behavior. The default is  to  enable  RandR
              1.2 support.

       Option "SWcursor" "boolean"
              Enable  or  disable  the software cursor. The hardware cursor is
              inactive when the software cursor is  enabled.  The  default  is

       Option "ForceReduced" "boolean"
              Force  the  use  of reduced blanking modes. Use this if your LCD
              monitor does not provide  correct  EDID  data  and  you  need  a
              reduced  blanking  mode  to  drive a high resolution mode over a
              single link DVI connection. The default is off.

       Option "UnverifiedFeatures" "boolean"
              The radeonhd driver sometimes relies on unverified graphics card
              features.  You  can  add  Option  "UnverifiedFeatures"  "off" to
              disable those when you run into difficulties.

       Option "RROutputOrder" "list-of-outputs"
              RandR modesetting only.
              Several legacy application rely on  the  Xinerama  extension  to
              determine   the  primary  screen.  RandR  returns  the  viewport
              displayed on the first attached output of the internal table  as
              the  first  Xinerama screen.  If your outputs are ordered in the
              wrong way, you can reorder them by adding their names (separated
              by spaces or commas) to the list-of-outputs.  Typically only the
              first (primary) output has to be listed, remaining  outputs  are
              added automatically. The default is none.

       Option "IgnoreConnector" "string"
              Standard (non-RandR) modesetting only.
              Connector  to  be  ignored  during  non-RandR  modesetting.  The
              default is none.

       Option "UseConfiguredMonitor" "boolean"
              Standard (non-RandR) modesetting only.
              Use or ignore the monitor section  in  xorg.conf.   In  standard
              modesetting  radeonhd ignores the EDID data if a monitor section
              is configured.  This is different to what  most  drivers  behave
              like  and  a  common source of configuration problems.  Thus the
              default is off (i.e. ignore).

       Option "NoAccel"
              Disable all hardware acceleration.  The  default  is  to  enable
              hardware acceleration.

              NOTE:   Use   of  this  option  is  considered  deprecated.  The
              AccelMethod option is considered to be more flexible.

       Option "HPD" "auto|off|normal|swap"
              Change the use of the hot plug detection (HPD) pins. On R5xx the
              according  connector  tables  are  often  broken  and have to be
              worked around.

              Auto    Select method depending on chipset and board
              Off     Don’t use HPD pins. Some connectors might not be able to
                      detect connections at all
              Normal  Use connector table information as-is
              Swap    Swap HPD pin 1 and 2 in connector table

              NOTE: Use of this option is discouraged. Whenever this option is
              needed to detect connected monitors correctly, please report  to
              the mailing list.  The default is Auto.

       Option "ForceDPI" "integer"
              Force  the  use of the specified pixel density in Dots Per Inch.
              The default is to use the monitor supplied values.

              NOTE: Use of this option is discouraged. Monitors should  return
              valid  DPI values, and the Xserver should honour them correctly.

       Option "UseAtomBIOS" "boolean"
              Selects the mode setting path. The default is chipset dependent.

              NOTE:  Use  of  this  option  is  discouraged. The driver should
              select the right path. If this option is needed to get your card
              working correctly, please report to the mailing list.

       Option "Audio" "boolean"
              This option enables the audio hardware, which is responsible for
              delivering audio data to the different HDMI  capable  connectors
              and  used  to communicate with the audio driver of the operation
              system. The default is off.

       Option "HDMI" "string"
              Possible  values  are   "DVI-I_0",   "DVI-I_1"..,"DVI-D_0","DVI-
              I_1",..,  "all".   This  option enables HDMI-Audio and HDMI-Info
              packets on the  specified  connector.   This  is  the  only  way
              enabling HDMI at the moment, since decoding E-EDID data to check
              if monitor supports HDMI is not implemented (yet).

       Option "Coherent" "string"
              There are two different ways to program the TMDS encoder  in  an
              output  for  best  signal  quality for the transmitter chip used
              inside a digital monitor. This option may be  used  to  set  the
              programming  for each output individually. The string is a space
              separated list of <output_transmitter>=on|off.  Possible  values
              for   <output_transmitter>   are:   TMDS_A,   TMDS_B,  UNIPHY_A,
              UNIPHY_B,           AtomOutputTMDSA,            AtomOutputLVTMA,
              AtomOutputKldskpLvtma,   AtomOutputUniphyA,   AtomOutputUniphyB.
              The log file should be consulted on which ones to use. The line:
              Option  "Coherent" "TMDS_A=off TMDS_B=on" will set coherent mode
              to off for TMDS A and to on for TMDS B.   The  default  for  all
              outputs is off.

       Option "TVMode" "tv-mode"
              The TV standard to use on the TV output.

              CV      Composite Video

              NOTE: This option isn’t implemented yet and has no effect.

       Option "ForceLowPowerMode" "boolean"
              Enable  to  statically  set  GPU  engine  clock  to a lower than
              default value. This  can  help  reduce  power  consumption.  The
              default is off.

       Option "LowPowerModeEngineClock" "integer"
              Engine clock frequency to use when ForceLowPowerMode is enabled,
              in Hz. If not set, the minimum known working frequency is  used.
              If  integer is negative, validation is skipped, and the absolute
              value is used for the engine clock.


       The following properties can be queried with xrandr --prop and some  of
       them  can be set with xrandr --output <output> --set <property> <value>
       .  Those not starting with an underscore ’_’  are  RandR  1.3  standard
       properties.   See  the RandR 1.3 protocol description for more details.
       Properties  marked  Read-Only  are   provided   by   the   driver   for
       informational  purpose  only,  those  marked Static won’t change during

       SignalFormat   Read-Only

              Type:           string
              Range/List:     unknown VGA TMDS LVDS DisplayPort

              Signal format / physical protocol format that is  used  for  the
              specified output.

       ConnectorType   Read-Only Static

              Type:           string
              Range/List:     unknown  VGA  DVI  DVI-I  DVI-A DVI-D HDMI Panel

              Connector type, as far as known to the driver.  Panel  describes
              laptop-internal (normally LVDS) displays.

       ConnectorNumber   Read-Only Static

              Type:           int32

              Range/List:     0-
              Outputs  that route their signal to the same connector MUST have
              the same connector  number.  Outputs  with  the  same  connector
              number  MUST route their signal to the same connector, except if
              it is 0, which indicates unknown connectivity.

       _OutputNumber   Read-Only Static

              Type:           int32

              Range/List:     0-
              A card may route one  internal  output  to  several  connectors.
              Connectors  that  are driven by the same output cannot be driven
              by different Crtcs and are thus only allowed to be used in clone
              mode.  The  driver  SHOULD emit an error message and continue as
              gracefully as possible if using different  Crtcs  for  the  same
              internal output is requested.
              Internal  outputs  are  numbered from 1, 0 indicates that output
              routing is unknown.


              Type:           string
              Format:         <width>x<height>[+<xoffset>+<yoffset>]

              Specifies the panning area in RandR mode per output.
              It actually is  a  Crtc-specific  property,  but  RandR  doesn’t
              support  that  yet.   As the xrandr application typically always
              resets  the   framebuffer   size   with   every   action,   --fb
              <width>x<height>  has  to  be  added on every invocation, unless
              there is an additional output configured that is using this size
              as its resolution.
              This property cannot be changed when in a rotated mode.

              NOTE:  Use  of this option is considered deprecated.  The driver
              supports RandR 1.3 panning, which is included  in  Xserver  1.6.
              It  is  considerable  more  flexible, and should support rotated


              Type:           int32
              Range/List:     0-255

              Specifies  the  backlight  intensity  on   laptop   panels,   if
              controllable by the driver.


              Type:           int32
              Range/List:     0-1

              Sets  the  coherent  flag  for  TMDS  signals.  See  also Option


       On R600 and above, the following XVideo attributes are supported.   Use
       xvattr to query and set these values at runtime.

              Select  the  Y’CbCr  color  space of the source video.  Accepted
              values are ’auto-detect’(0), ’Rec.601’(1), and ’Rec.709’(2).

              Rec.709  is  the  standard  which  applies  to   high-definition
              television  broadcasting  and  "HD"  digital  video  in general;
              Rec.601 applies to all other digital video.  When  ’auto-detect’
              is  selected,  Rec.709 is used for videos encoded at least 928px
              wide, and Rec.601 is used otherwise.  This cut-off is lower than
              720p  so  that  the  correct  color space can be applied to some
              media with non-standard resolutions that  have  high-probability
              of having originated from Rec.709 encoded content.

              Default is ’auto-detect(0).


       As the radeonhd driver is still in development, some non-obvious things
       might not work yet. A list of major known bugs  is  maintained  on  the
       wiki.   Other  places  to  check  for  known bugs and solutions are the
       bugtracker at
       and the mailing list archives at

       radeonhd development caused a few bugs in Xorg and a number of bugs  in
       xrandr(1)  to  be discovered. If you are using xrandr(1) versions older
       than 2007-11-10, you should try updating xrandr(1).
       Alternatively, you can try to always specify different  CRTCs  for  all
       monitors  by  explicitly  selecting  them  with  --crtc  [0|1]  on  the
       xrandr(1) command line.


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

        1. The official radeonhd wiki

        2. The radeonhd mailing list

        3. Overview about radeonhd development code

        4. Query the bugtracker for radeonhd bugs


       Egbert Eich, Luc Verhaegen,  Matthias  Hopf,  Hans  Ulrich  Niedermann,
       Christian Koenig, Alexander Deucher, and others.