radeonhd - AMD GPG (ATI) R5xx/R6xx/R7xx video driver
radeonhd is an Xorg driver for AMD GPG (ATI) R5xx/R6xx/R7xx based video cards.
At the time of this writing, radeonhd has the following limitations:
o Support for hardware-based 2D acceleration and Xvideo needs more testing on R6xx and
R7xx based cards.
o No TV and Component connector support so far.
o 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, some-
times 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 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 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 XT
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
RV770 Radeon HD 4800 Series; Everest, K2, Denali ATI FirePro
R700 Radeon R700
M98 Radeon M98 Mobility
RV730 Radeon HD4670, HD4650
M96 Radeon M96 Mobility
RV710 Radeon HD4570, HD4350
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 bet-
ter 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 technique.
exa is the newer but more experimental hardware-based acceleration technique.
The default is depending on the chipset, driver version, and state of acceleration
techniques and tries to give the best user experience.
Rotation isn't supported for the AccelMethods "none" and "shadowfb".
Use this option to enable 3D and Xv acceleration using DRI. Currently, the default
is on on R5xx and RS6xx chips, and off on all others.
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 dis-
play 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 dis-
play, 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 otherwise.
The default is to keep the aspect ratio.
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 off.
Option "ForceReduced" "boolean"
Force the use of reduced blanking modes. Use this if your LCD monitor does not pro-
vide correct EDID data and you need a reduced blanking mode to drive a high resolu-
tion 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 difficul-
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 com-
mas) 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).
Disable all hardware acceleration. The default is to enable hardware acceleration.
NOTE: Use of this option is considered deprecated. The AccelMethod option is con-
sidered to be more flexible.
Option "HPD" "auto|off|normal|swap"
Change the use of the hot plug detection (HPD) pins. On R5xx the according connec-
tor 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
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
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
Option "Audio" "boolean"
This option enables the audio hardware, which is responsible for delivering audio
data to the different HDMI capable conntectors 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 sig-
nal 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_trans-
mitter> 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.
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 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 informa-
tional purpose only, those marked Static won't change during runtime.
Range/List: unknown VGA TMDS LVDS DisplayPort
Signal format / physical protocol format that is used for the specified output.
ConnectorType Read-Only Static
Range/List: unknown VGA DVI DVI-I DVI-A DVI-D HDMI Panel DisplayPort
Connector type, as far as known to the driver. Panel describes laptop-internal
(normally LVDS) displays.
ConnectorNumber Read-Only Static
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
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 con-
tinue as gracefully as possible if using different Crtcs for the same internal out-
put is requested.
Internal outputs are numbered from 1, 0 indicates that output routing is unknown.
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 pans.
Specifies the backlight intensity on laptop panels, if controlable by the driver.
Sets the coherent flag for TMDS signals. See also Option Coherent.
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 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
Alternatively, you can try to always specify different CRTCs for all monitors by explic-
itly 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.
X Version 11 xf86-video-radeonhd 1.2.5 RADEONHD(4x)