Table of Contents

## Name

radeon - ATI RADEON video driver

## Synopsis

    Section "Device"
      Identifier "devname"
      Driver "radeon"
      ...
    EndSection

## Description

radeon is a XFree86 driver for ATI RADEON based video cards. It contains full support for 8, 15, 16 and 24 bit pixel depths, dual-head setup, flat panel, hardware 2D acceleration, hardware 3D acceleration (except R300 cards), hardware cursor, XV extension, Xinerama extension.

## Supported Hardware

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

R100
  Radeon 7200
RV100
  Radeon 7000(VE), M6
RV200
  Radeon 7500, M7
R200
  Radeon 8500, 9100, FireGL 8800/8700
RV250
  Radeon 9000, M9
R300
  Radeon 9700PRO/9700/9500PRO/9500, FireGL X1/Z1

## 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 all device information necessary to initialize the card. However, if you have problems with auto-detection, you can specify:

> 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 key.
  The default value is undefined.
Option "UseFBDev" "boolean"
  Enable or disable use of an OS-specific framebuffer device interface (which is not supported on all OSs). See fbdevhw(4) for further information.
  The default is off.
Option "AGPMode" "integer"
  Set AGP data transfer rate. (used only when DRI is enabled)
  1 -- x1 (default)
  2 -- x2
  4 -- x4
  others -- invalid
Option "AGPFastWrite" "boolean"
  Enable AGP fast write.
  (used only when DRI is enabled)
  The default is off.
Option "ForcePCIMode" "boolean"
  Force to use PCI GART for DRI acceleration.
  (used only when DRI is enabled)
  The default is off.
Option "DDCMode" "boolean"
  Force to use the modes queried from the connected monitor.
  The default is off.
Option "CloneDisplay" "integer"
  This option is only used for dual-head cards with only single screen section specified in the configuration file.

  0 -- disable
  1 -- auto-detect (default)
  2 -- force on
  3 -- auto-detect + 2nd head overlay
  4 -- force on + 2nd head overlay
  others -- auto-detect

  disable means only one CRTC is used for both heads. auto-detect means the secondary head will be driven by CRTC2 if a monitor is detected there. force on means the secondary head will be driven by CRTC2 even no monitor is detected there. 2nd-head overlay means the only hardware overlay will be placed to the secondary head.

  Primary/Secondary head for dual-head cards:
  (when only one port is used, it will be treated as the primary regardless)
  Primary head:
  DVI port on DVI+VGA cards
  LCD output on laptops
  Internal TMDS prot on DVI+DVI cards
  Secondary head:
  VGA port on DVI+VGA cards
  VGA port on laptops
  External TMDS port on DVI+DVI cards

Option "CloneMode" "string"
  Set the first mode for the secondary head. It can be different from the modes used for the primary head. If you don't have this line while clone is on, the modes specified for the primary head will be used for the secondary head.
Option "CloneHSync" "string"
  Set the horizontal sync range for the secondary monitor. It is not required if a DDC-capable monitor is connected.
  The default value is undefined.
Option "CloneVRefresh" "string"
  Set the vertical refresh range for the secondary monitor. It is not required if a DDC-capable monitor is connected.
  The default value is undefined.
Option "PanelOff" "boolean"
  Disable panel output. Only used when clone is enabled.
  The default value is off.
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.

## See Also

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

## Authors

    Authors include: ...