Turn off HDMI Addon

Does CEC work with your TV? There is an option to put devices in standby when the screensaver starts.
Unfortunately, it doesn't seem to work with Black\Dim screensaver modes.

My mistake, is DOES work with Black & Dim modes.

I'm interested also in the same.

I have tried with /usr/sbin/fw_setenv hdmioutput 0

But not works.

Quote from minimoe

Does CEC work with your TV? There is an option to put devices in standby when the screensaver starts.
Unfortunately, it doesn't seem to work with Black\Dim screensaver modes.

My mistake, is DOES work with Black & Dim modes.

This is pretty much what I do.

I have the power button on my remote mapped to active the screensaver in remote.xml

<keymap>
  <global>
    <remote>
      <power>ActivateScreensaver</power>
    </remote>
  </global>
</keymap>

Then in CEC settings I have the setting to turn off the TV when the screensaver is activated.

These are my CEC settings. See if you missed something.

Quote from lrusak

Try

Code

echo 1 > /sys/class/graphics/fb0/blank

With echo 1 the screen goes to black, but my expectation was see the "no signal" msg on my TV.

I know this is an old post and stumbled upon it when I was looking for a problem I had.

I've had some weird experiences with LG TV's that do not fully support all HDMI-CEC commands.

I could turn the device on but not off and had to look for another solution. In the end it could be either resolved sending an UDP command via a network cable or RS232 which the screen luckily supported.