So, I recently updated my TCL google tv 6 series mini led (55r646) this week. ever since then ive been experiencing audio issues. before the update HDMI CEC was turned off and everything was working normal, after it was updated HDMI CEC was turned on, and audio would only work if left on. if cec gets turned off by myself, audio would be shut off (unless turned back on in tv audio settings). I have a Vizio 5.1.2 sound bar (model VIZIO M-SERIES M512A-H6 5.1.2) If I could get any help it would be greatly appreciated. I don't and won't ever feel the need to have HDMI cec turned on. I think its annoying rathe than helpful/convenient. Thank you.
I can only assume ARC is enabled alongside HMDI CEC, CEC should turn the soundbar on along with the TV and then ARC plays the audio