RADEONHD(4)

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

SYNOPSIS
Section "Device"
  Identifier "devname"
  Driver "radeonhd"
  ...
EndSection

DESCRIPTION
radeonhd is an Xorg driver for AMD GPG (ATI) R5xx/R6xx based video cards. RADEONHD is still very much work in progress. At the time of this writing, radeonhd has the following major limitations:

•   NO support for 2D & 3D acceleration, no support for Xvideo.

•   No TV, Component, and HDMI connector support so far.

•   Suspend & Resume is pretty much untested. Often it just works, but your milage may vary.

•   After using the fglrx driver, the display can get very jittery with radeonhd. Also suspend & resume will probably fail. A reboot fixes this problem 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.

SUPPORTED HARDWARE
The radeonhd driver supports video cards based on the following ATI chips:

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 3850, HD 3870, FireGL V7700
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 XT
M82 Mobility Radeon HD 3400
M86 Mobility Radeon HD 3600
RS600
    Radeon Xpress 1200, Xpress 1250
RS690
    Radeon X1200, X1250, X1270

CONFIGURATION DETAILS
Please refer to xorg.conf(5) for general configuration details. This section only covers configuration options specific to this driver. Some options may be deprecated and considered to be removed or replaced by better implementations soon.

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

Option "AccelMethod" "none|default|shadowfb|xaa|exa"
    Use the indicated accleration method. The default is depending on chipset version and state of acceleration techniques and tries to give the best user experience. shadowfb is a software-only acceleration technique, while xaa and exa are hardware-based acceleration techniques.

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 "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 "HPD" "hpd-mode"
    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 "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 "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 "ShadowFB" "boolean"
    Enable or disable shadow framebuffer support. This greatly improves the speed of unaccelerated drivers. The default depends on chipset and acceleration state.
    NOTE: Use of this option is considered deprecated. The AccelMethod option is considered to be more flexible.

Option "RRUseXF86Edid" "boolean"
    RandR modesetting only.
    Enable or disable the use of xf86OutputGetEDID() and xf86OutputGetEDIDModes() instead of the default routines from radeonhd, which are better adapted to the chipset. Panels will often fail to work with these calls. The default is off.
    NOTE: Use of this option is considered deprecated. Report to the mailing list if this is needed for your configuration.

RANDR OUTPUT PROPERTIES
The following properties can be queried with xrandr --prop and some of them can be set with xrandr --output <output> --set <property> <value> . Those marked with RR13 are probably merged into a RandR 1.3 standard. Properties marked Read-Only are provided by the driver for informational purpose only, those marked Static won't change during runtime.

RANDR_SIGNAL_FORMAT   Read-Only RR13

    Type:
        string
    Range/List:
        unknown VGA TMDS LVDS FBAS FBAS-PAL FBAS-NTSC FBAS-SECAM SVideo YPbPr DisplayPort

    Signal format / physical protocol format that is used for the specified output.
    A driver MAY change this property of an output if the underlying hardware indicates a protocol change (e.g. TV formats). Values with dashes (FBAS-PAL) describe more specific versions of the base values (FBAS) and SHOULD be used if known to the driver.

RANDR_CONNECTOR_TYPE   Read-Only Static RR13

    Type:
        string
    Range/List:
        unknown VGA DVI DVI-I DVI-A DVI-D HDMI PANEL TV TV-FBAS TV-SVideo TV-YPbPr TV-SCART TV-C4 DisplayPort

    Connector type, as far as known to the driver.
    Values with dashes (TV-FBAS) describe more specific versions of the base values (TV). The former SHOULD be used if the connector is not capable of producing other signal formats. The later SHOULD be used if the exact connector is unknown, or the connector is a multi-format connector that is not described otherwise. DVI, for instance, SHOULD be handled like a DVI-I connector, unless additional information is available to the user agent. PANEL describes laptop-internal (normally LVDS) displays. TV, TV-SCART, TV-YPbPr, and TV-C4 with signal format VGA are valid combinations and describe RGB TV signals.

RANDR_CONNECTOR_NUMBER   Read-Only Static RR13

    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. 1 is called the primary connector, 2 the secondary. 3 is often a TV connector, but that is completely driver / hardware dependent.
    Outputs with the same connector number SHOULD have the same connector type. Meaning and client behavior for mismatching connector types is undefined at the moment.

RANDR_OUTPUT_NUMBER   Read-Only Static RR13

    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.

RANDR_PANNING_AREA

    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.

KNOWN BUGS
As the radeonhd driver is still in an early stage of development, many non-obvious things do 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
https://bugs.freedesktop.org/query.cgi?product=xorg&component=Driver/radeonhd
and the mailing list archives at http://lists.opensuse.org/radeonhd/

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.

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

1.  The official radeonhd wiki
    http://wiki.x.org/wiki/radeonhd

2.  The radeonhd mailing list
    http://lists.opensuse.org/radeonhd/

3.  Overview about radeonhd development code
    http://gitweb.freedesktop.org/?p=xorg/driver/xf86-video-radeonhd

4.  Query the bugtracker for radeonhd bugs
    https://bugs.freedesktop.org/query.cgi?product=xorg&component=Driver/radeonhd

AUTHORS
Driver written by Egbert Eich, Luc Verhaegen, Matthias Hopf, and others.

Man page written by Hans Ulrich Niedermann, Matthias Hopf, and others.