Originally Posted by Hwgeek
Did you choose the TV as sound output on sound settings? (click on Speaker icon on taskbar and click on "SPEAKER(Realtek...)" and choose your TV).
as i sayd it works on intel HD4600 and yes u have to manualy choose output to get sound out from another device. with HD4600 i can see 4k tv option available but with hdmi connected to gpu its says not plugged in and greyed out.