Intermittent HDMI-CEC power loop with Sony TV + Apple TV — temporarily fixed by toggling “eARC Power Interlock”

Support
#1

Hi,

I’m experiencing an intermittent HDMI-CEC power issue with my setup:

  • Sony TV (HDMI ARC/eARC)
  • HiFi Rose RS520 (connected via HDMI ARC/eARC)
  • Apple TV (regular HDMI input)
  • Control via Apple TV remote

Everything works normally at first: turning Apple TV on/off correctly powers the TV and the HiFi Rose.

However, after some time (hours or days), a power loop appears:

  1. I put Apple TV to sleep
  2. TV and HiFi Rose turn off
  3. After 1–2 seconds they turn back on
  4. I must repeat shutdown several times before they stay off

I tested multiple settings on the TV and Apple TV, but the issue persists.

Toggling “eARC Power Interlock” on the HiFi Rose (OFF→ON or ON→OFF)

temporarily stops the loop, but only for a limited time.

Eventually the problem returns, regardless of the setting state.

This suggests the feature may be triggering an unintended CEC power command or conflicting with Sony’s Bravia Sync.

I can provide models and firmware versions if needed.

Thanks!

#2

Hmmm
Do you live in an apartment or condo?
I have a similar issue w my Samsung TV where we shut it off and leave the room only to find that it turned itself back on minutes later.

To be honest, these smart TVs / Gadgets are ‘asleep’ but still on and they are connected to the internet.
So that makes you wonder…