Your deviceLG M5 OLED
Step 1 of 425%
What to do now
Check the cable
Make sure the device is connected with an HDMI cable, ideally to a port marked ARC or eARC for a soundbar.
Device-matched visualLG M5 OLED · LG webOS

LG M5 OLEDLG webOS · 14:32
Back of the TV
HDMI 1
HDMI 2 (ARC)