737- 39986: Absence of Audio through the HDMI connection when using HDMI Receivers

The information in this article applies to the following configuration(s):
Video Driver:
ATI Catalyst™ Display Driver 8.11 or higher

HDMI Receiver:
HDMI Receivers (various brands and models)

Graphics Card (any of the following):
Radeon™ HD 4000 Series
Radeon™ HD 3000 Series
Radeon™ HD 2000 Series
FirePro™ V5700
FirePro™ V8700
FireGL™ V7600
FireGL™ V7700
FireGL™ V8600
FireGL™ V8650

Operating System (any of the following):
Windows Vista 32-bit Edition
Windows Vista 64-bit Edition
Windows XP Professional
Windows XP Home Edition
Windows XP Media Center Edition
Windows XP Professional x64 Edition
Symptoms:

In Catalyst™ Control Center, the HDMI connection is detected as a DVI connection. This results in the absence of an audio signal through the HDMI connection for any of the above video driver / graphics card / OS combinations.

Workaround:

AMD is investigating this issue. In some cases, connecting the HDMI cable from the graphics card to another HDMI input on the HDMI receiver may resolve the issue. In other cases the HDMI input designed for DVD may work correctly with the graphics card.

AMD plans to continue to investigate the issue and will publish any updates that become available.

ERP #245470

Enabling the DTS (Digital Theater Systems) function Before DTS is enabled, you would get only 2-channel output signals (from the front speakers) when playing 2-channel music. You must play 4-, 5.1-, or 7.1- channel music sources to produce 4-, 5.1-, or 7.1- channel audio effects. With DTS enabled, the system will transform two-channel stereo source material into multi-channel audio output, creating a virtual surround sound environment(Note).