Read the statement by Michael Teeuw here.
libCEC LG TV
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Hi.
I searched the forum but I can not find the information why the command doest not work:
TV Off:
echo “standby 0” | cec-client -s -d 1Tv on and scan working fine.
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Ok. I found the answer here:
https://github.com/Pulse-Eight/libcec/issues/363“LG do not support Power Off (Standby) in their CEC implementation”
I use pir sensor and relay to turn off/on TV. Is there any other solution to turn off/on the screen but that the OSD does not show up? -
Since you cannot put your tv into standby via CEC I guess you have to find a hardware way. You should analyze the button panel of your screen and see if you can simulate pressing the power button of your screen via relay/gpio
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There is no power button, there is a small joystick. you have to move and press. I am thinking about controlling the power supply - relay, it works. Only when TV turning on, shows the LG start screen /input screen- OSD
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Are there any secret codes for LG TV…?
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