How to make atmos work?

[yoursonly_guru87]

I have Lg 49SJ81 and Sony HT-FX9000 2.1 dolby atmos and Dts virual X and i dont know how to make the atmos work. I have plugged hdmi from soundbar to tv port(arc) but it still doesn't show atmos whenever i play any atmos movie. What should i do?

 

[HamsterKing]

Hi, if im not wrong for the Atmos its setup on the movie settings which is the main screen of the movie.