One of the special abilities of ATI's R600 GPU family is the
integrated 5.1 surround sound audio support through HDMI. Many Radeon HD
2000 and HD 3800 series graphics cards also ship with a DVI to HDMI
dongle, so that one can experience the full video playback capabilities
of these discrete graphics cards. But what level of HDMI support can
Linux users expect when using these latest ATI graphics cards? We have
done some testing internally and have the initial ATI Linux HDMI video
and audio results to report in this article.