Hi Sam,
Maybe a lead
Looking for issue about CEC with my Sony TV I may have something similar. I’m on the October update and after a while the CEC entry disappear from the external source. On Sony TV you can select external source but when an CEC device is connected and recognized it appears on the top of the external source list. After stop/start both TV and RPI the entry appears but after some time (days? to determine) it’s gone. HDMI cable changed already, CEC adapter enabled/disabled, no change.
I added a new H…
I’m still on October update, but on my Sony TV CEC failed too. I was able to get it back but it disappeared at the end. Searching with the below error (with “cec-client -r”)
unhandled response received: opcode=84 initiator=1 destination=f response=1
I’ve found https://github.com/Pulse-Eight/libcec/issues/306 but I need to test the scenario