
To use the DisplayPort interface with the open-source ATI driver (using the binary-only Catalyst driver should already work with DisplayPort monitor for many months), checking out separate Git branches of xf86-video-ati and DRM code is currently required. Fortunately, however, this code should be merged into the mainline xf86-video-ati driver soon and it looks like the kernel side of this support will be merged into the Linux 2.6.33 kernel. This support will also improve once R600 IRQ support emerges (coming very soon) and the code cleaned up to share some of the DisplayPort code with Intel's driver, which already supports this standard.
More details can be found on David Airlie's blog.
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