Setting up a secondary display via the HDMI-
If you want to use a high-definition TV as an audio output device, follow the steps below to
configure the audio settings.
To configure the audio output via an HDMI device:
From the Start screen, launch the Desktop Mode.
NOTE: For more details, refer to the section Start screen under Using Windows® 8.1.
Right-click the Volume Mixer icon on the Windows® taskbar and click Playback devices.
From the Playback screen, select Digital Audio (HDMI).
Click Configure and the Speaker Setup window pops up.
All-in-One PC ET2221I / A6410 Series