Earlier this week support for Intel's GMA 4-Series Chipsets was committed to the xf86-video-intel DDX driver and OpenGL support in Mesa. In preparation for the forthcoming Intel GMA X4500, the Intel Linux driver has received some added work last night. In particular, HDMI should now be working with Intel hardware. In addition, DisplayPort registers have been added to the Intel driver, but it doesn't look like that connection is fully supported yet. These features should be part of the xf86-video-intel 2.4.0 driver release.