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Using HDMI With ATI Radeon HD Linux Drivers

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.

The graphics card used for this Linux HDMI (High Definition Media Interface) testing was the ASUS Radeon HD 2600PRO 256MB, which was connected via a DVI-to-HDMI dongle to a Sharp Aquos LC37D43U 37" LCD HDTV. For the video portion of the HDMI, we had tested both the fglrx and RadeonHD drivers and ALSA for audio.

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