TV does not turn on through HDMI CEC

[wangvictorh]

Just bought a Samsung S95D and the TV  does not reliably turn on through HDMI CEC ... I've tried using an Apple TV and a Playstation 5, both of which are set to turn the TV on through HDMI CEC and have the appropriate cables to do so (i.e. both of these devices turned my previous Samsung Q90T on without any issues prior to this TV).

This seems to be an issue  when the TV is off for more than an hour ... if the TV was just recently turned off (e.g. in the past hour), the Apple TV and the Playstation 5 are both able to turn the TV on. Anything more than an hour, the TV does not turn on successfully through these two devices

[Prash88]

Same issue with Samsung Frame 2024 LS03D, apple tv CEC command for turning on is not working after long stand by.

I believe this happens because the TV is getting turned on by its sensors (motion, mic on the TV, and light sensor)

which is causing the HDMI handshake to break.

you can turn off the TV microphone only with a hard switch in TV control panel, ref (https://www.youtube.com/watch?v=oIyv4Y8cw2M&pp=ygUec2Ftc3VuZyBUViBtaWNyb3Bob25lIHR1cm4gb2Zm)

[userxhPmxvQtEI]

Does this fix the issue?

[Surreality]

Not sure that’s the fix for the issue as I have my Apple TV turning on the TV at the moment with the microphone enabled.

I’m worried about losing a working setup so I don’t want to experiment further but I think installing the Smart Hub may prevent the TV from going into a deep sleep, this allowing it to respond to commands. Has anyone else had success installing it?

[exeter_acres]

Mid Nov...  new S95D   with Q990d and Apple tv.. exact same issue..   Apple TV turns tv on  if within a short period, but not after time....    I have disabled the microphone just now to test..  but it hasn't been long enough

Anyone else have info on this?