radeonhd driver is abandoned and unsupported. The reasons for two different drivers are historical, and starting to be a thing of the past as all the new DRM (direct rendering manager), 3D and KMS (kernel mode setting) work is done in a single place. (radeonhd was for long the one with HDMI audio support, but 2.6.33 kernel now has HDMI audio support for ati as well).radeon supports tear-free video playback.radeon supports the kernel mode-setting (KMS).The differences between radeon and radeonhd with r5xx-r7xx series:

Radeon has some features not available in radeonhd and vice versa, but generally they are starting to be quite close while radeon supports all the cards and radeonhd only r5xx-r7xx. What about other drivers?įor an alternative R500/R600/R700 driver see radeonhd. For more 3D information see Radeon 3D acceleration Portal. See RadeonFeature and ?RadeonProgram for driver feature and supported program lists. Latest changes in the development tree can be seen at: Status

: 6.14.0: KMS EXA/Xv support for Evergreen GPUs (Radeon HD 5000 series), Fusion APUs (Ontario series) and Northern Islands GPUs (Radeon HD 6000 series but not 6900), KMS pageflipping support for all radeons.

: 6.14.1: Cayman (Radeon HD 6900) support (shadowfb, kms-only), big endian support.

: 6.14.2: Cayman (Radeon HD 6900) acceleration support, Fusion APU tiling fixes, other fixes.

: 6.14.3: Llano APU support, KMS page flipping fixes, vdpau/XvMC support, tiling fixes.

: 6.14.4: Trinity APU support, 2D tiling on R6xx+, KMS tiling for r1xx-r2xx, lots of bug fixes.

: 6.14.5: Solid picture accel, tiling fixes, new PCI-IDs, 6xx-9xx Xv improvements, support for upcoming xserver API changes, bug fixes.: 6.14.6: Few bugfixes, final release with UMS support (future releases will support only KMS).: 7.0.0: First KMS only release, enable 2D tiling by default on r6xx+ asics, xserver 1.13 support including prime, glamor support, SI support.: 7.1.0: Enable full 2D acceleration for SI (glamor), few bug fixes.Driver for ATI/AMD Radeon based video chips, everything from Radeon 7000 (R100) to Radeon HD 7000 (Southern Islands) series.

Radeon drivers