After choosing "5.1 digital output" in Realtek Audio customer can not get sound through HDMI.
The above symptom may occur on the following systems:
IdeaPad Y450, IdeaPad Y550, IdeaPad Y650
This is a designed feature - by enabling this option customer turns on S/PDIF output on front panel that is inside of audio jack. To use HDMI as Audio Output customer needs to right-click standard Windows Audio icon in tray and chose "Output Devices" there, signing HDMI as default output device. Some players need to be restarted for changes to take effect.
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