Samsung TV continuously turns on approximately 20-40 seconds after being turned off

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Level 1

4 points

Samsung TV continuously turns on approximately 20-40 seconds after being turned off

Hello!

I've got a Samsung Q8FN TV and a Bose Soundbar 700. When I connect the Apple TV to the TV I have an issue where the TV will turn back on after being turned off. It appears as though the command is traveling via CEC from the Apple TV to the Soundbar (I see it light up before the TV) which then turns on the TV.

The Apple TV appears to be asleep when this happens (no white light on front). Unplugging the Apple TV prevents the TV from turning back on. Disabling CEC functionality within Apple TV's settings has no affect.

Others with this mix of hardware also seem to have this issue (as seen on Reddit and this Apple discussions site).

All firmware is up to date on all devices.

Installing a CEC blocking dongle (disables HDMI Pin 13) fixes the issue, but obviously doesn't allow for the Apple TV's remote to control the TV on/off or HDMI switching functionality.

Other CEC enabled hardware is installed without issue (Fire TV 4k, Nintendo Switch).

Any recommendations? I submitted a bug report via the Apple website but I don't expect anyone will actually ever read it.

QNQ8FB,

Posted on Dec 28, 2021 5:17 AM

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Answer 1

vazandrew

Level 8

40,462 points

Dec 28, 2021 9:33 AM in response to scottwith1t

Feedback and bug submissions are taken into account, you just won't get a response. I could very well be a specific issue related to that mix of hardware and not just isolated to the Apple TV, have you tried reaching out to the other manufacturers as well?

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Answer 2

scottwith1t Author

Level 1

4 points

Dec 29, 2021 4:05 AM in response to vazandrew

I haven't specifically, but others have (At least according to users on Reddit...). The Bose Soundbar 700 also has 7 different HDMI-CEC profiles to choose from for troubleshooting and none make any difference.

The issue appears to be specific to the Apple TV however. Somehow the command is traveling via CEC from the Apple TV to turn everything back on even when the options are verified turned off in the Apple TV settings. Disabling Pin 13 on the HDMI cable (via dongle) connecting the Apple TV stops the undesirable behavior.

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Samsung TV continuously turns on approximately 20-40 seconds after being turned off

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