webOS 04.71.00 on LG OLED65C7P no longer outputs to Optical/HDMI ARC?

[sebastienbarre]

I'm not sure if something happened with webOS update 04.71.00, but my LG OLED65C7P no longer outputs sound to my LG SJ9 soundbar in Optical/HDMI ARC mode. SIMPLINK is on, HDMI cable hasn't moved, everything had been working like a charm for a year+, then no sound unless I switch to TV speakers, which is a bummer.

Anybody else in that situation?

Ugh, apparently it started with 04.70.85, others are having this issue here.

[Chris H]

exactly same situation, trying to connect to home theatre system , I can tell the syslink is working as the volume indicator changes on both the stereo and the tv but no actual sound coming out

[sebastienbarre]

3 minutes ago, Chris H said:

exactly same situation, trying to connect to home theatre system , I can tell the syslink is working as the volume indicator changes on both the stereo and the tv but no actual sound coming out

Do you have a LG soundbar? Are your HDMI cables close to your power cables? (as in, maybe tied together so it looks cleaner?)

[Chris H]

no soundbar, trying to connect to home theatre stereo .

[Chris H]

I've raised it to support in Australia. How do you know that others are having the same issue? Can you provide details or links? The more people having issues the more chance of them lookihn at it.

[sebastienbarre]

My TV was still under warranty, so they had somebody come to my place and replace the board. His suspicion is that the power cable had interfered with the HDMI cables and send a pulse to the board, frying some HDMI components.