Subwoofer works in Windows Test but won't pick up bass otherwise (1 Viewer)

[SonicPlyr]

Hi community,

I'm really confused. I'm having a LG SC9S soundbar set up with my LG C2 plugged on the E-ARC/ARC port.

My PC, with a 3080, is plugged on the HDMI 3 port of my TV. All drivers are up to date

I went in the Manage Audio Devices settings to set up Dolby Atmos as Audio Channel. (I downloaded the Dolby Access app and everything.)

Now when testing on this very window the various channels I have no issues. All channels emit a sound when clicked on.

However when testing the channels while watching a video, No sounds on the subwoofer. The rest is fine.

I tried multiple videos and same issue.

Would you happen to know why and how to fix it?

I read that I should set the speakers to small in order to have the low frequencies sent to the subwoofer but I have no idea how to change that with my configuration.

Many many thanks in advance.

PS: Since I've set up Dolby atmos, there's some kind of lag before hearing the audio. No lags whatsoever when channels is set to Stereo. Is the lag normal, is there anyway to have it behave like when set on Stereo? (Not a big deal for me but still a bit frustrating)

 

[SonicPlyr]

Upon further inspection; the subwoofer seems to emit some low frequencies sounds but nothing from the dedicated channel of the subwoofer as i understand.
Am I been mislead by the videos ?

 

[SonicPlyr]

No I just confirmed there's a software issue since using the Youtube App from my smart tv I was able to hear the subwoofer channel. Furthermore on Windows there were no sound activity when the subwoofer played.

 

[SonicPlyr]

Has anyone has a recommendation as to where I could bring this software issue?