Hi, I connected my PC's HDMI output port to the input port of the Samsung Q90R Dolby Atmos sound bar. Then, the output port of the sound bar to the HDMI 3 ARC input port of my TV. After a firmware update of the soundbar, the soundbar always turns itself off after short inactivity of the PC. How do I fix this issue? Somebody asked me to check if I have enable passthrough of the TV. How do I do that? I cannot find such option. Thanks