gerryex wrote:
HI, The HDMI output of the Roku Ultra is directly connected to my AVR (a Denon 6200W) and then the output of the AVR is directly connected to my 4K compatible LG OLED TV. I do not use ARC since the TV is old and while it does have ARC it does not support Atmos. That is why I'm using the Ultra rather than the TV's own apps. When I'm in the Ultra's settings for Audio/HDMI for both Auto Detect and Auto Passthrough Atmos is indicated as available. Lastly, the Ultra is on a remote controlled power outlet and is powered off when not in use. When its in use it has just been powered on and thus has been re-booted.
I'm not sure what else to try!
I'm assuming you have a 2016 or earlier LG OLED.
Could you enumerate exactly what is detected at Settings/Audio/HDMI/Auto passthrough (as in, an exact quote)?