AMD HDMI Audio - Missing Device or Error In Device Manager on Windows® XP Based System

Article Number: 737-27794

After installing the Catalyst™ Drivers for an AMD Radeon™ HD Series Graphics Card on a Windows® XP based system, users may notice an error (!) beside the AMD HDMI Audio device, or find an Unknown Device entry in the Device Manager.

Please follow the steps below:

  1. Please install the Microsoft UAA HDMI Audio Class System Driver.
  2. Uninstall the AMD Catalyst Driver.
    Refer to GPU-57 for uninstall instructions.
  3. Reinstall the AMD Catalyst Driver for the graphics card.
    Refer to GPU-2 for installation instructions.​​


System Requirements:

  • Windows® XP (32 & 64-bit)

AMD Product Compatibility:

  • Radeon™ HD Series