Graphics driver for ATI RADEON chipsets


io-display [-vf]
           -d vid=[0x]vendor_id,did=[0x]device_id[,deviceindex=index]
           [-c config_file] [-p priority]

Runs on:



x86, PowerPC


For the general io-display options that you can use with this driver, see io-display.


The driver provides accelerated 2D support for the specified graphics chipsets.

The DVI (digital video interface) is enabled by default, so you can connect LCD panels to your Radeon cards. The only requirement is that you connect the LCD to the DVI connector at boot time so the video BIOS can set up the digital output.

Dual-headed display is supported on cards with dual outputs (x86 only). The video BIOS initializes both outputs at boot time. Ensure that both outputs are connected.

  • If you use with two cards that have the same vendor and device IDs, the driver fails.
  • Graphics drivers run at a higher priority than applications, but they shouldn't run at a higher priority than the audio, or else breaks in the audio occur. You can use the on command to adjust the priorities of the audio and graphics drivers.

Supported chipsets

Acceleration features

Feature Provision
Solid fills Yes
Pattern fills Yes
Onscreen blitting Yes
Offscreen blitting Yes
Chroma-keyed blitting Yes
Alpha blending No
Raster OPs Full
Bitmaps No

Video Overlay/Scaler support

Feature Provision
YUV formats Yes (packed and planar)
RGB formats Yes (RGB 555, 565, 8888)
Up scaling Yes
Down scaling Yes

Other features

Feature Provision
Hardware Cursor Yes
TV Out No
Video capture No
DPMS (power saving) Yes

Resolution and refresh support

Display size (pixels): Refresh rate (Hz): Color depth (bits per pixel):
640x480 60, 70, 75, 85 8, 15, 16, 32
800x600 60, 70, 75, 85 8, 15, 16, 32
1024x768 60, 70, 75, 85 8, 15, 16, 32
1152x864 60, 70, 75, 85 8, 15, 16, 32
1280x800 60, 70, 75, 85 8, 15, 16, 32
1280x1024 60, 70, 75, 85 8, 15, 16, 32
1440x900 60, 70, 75, 85 8, 15, 16, 32
1600x1200 60, 70, 75, 85 8, 15, 16, 32



This driver needs the following at run time:
Software rasterization library.

See also: