Chromecast will turn on my LG TV, but it will only turn it off when the HDMI screen is selected

[UncleSimmo]

Hi there,

I have a Chromecast connected to my LG TV and use my Google Home and Google Nest Mini to turn it on without any problem. However when I ask either of my speakers to turn it off it doesn't do anything, unless the TV source is actually on HDMI1, which is the port in which the Chromecast is connected.

If the TV source is on the aerial, or if I am watching something on an app like Netflix or Amazon (which is most of the time) then the speaker says it is turning off the TV but nothing happens.

Does anyone know what might be causing this and how to resolve it? Obviously It defeats the purpose of the voice control if I have to use the remote control to switch the TV input to HDMI1 every time!

Thanks

Chris

[Cathal_S]

Hi,

It's because of HDMI-CEC that the device can only control the input port that is being used.

https://support.google.com/chromecast/answer/7199917 

Maybe you could use a routine that switches to that port by requesting something is played and then another command that turns the TV off once it's switched to the HDMI that the Chromecast is in?

[JenniferV]

Hi there,

Thanks for the help, Cathal_S.

UncleSimmo, hope that helps. Feel free to let us know if you still need help.

Thanks,

Jennifer

[UncleSimmo]

Hi Cathal,

Thanks for your reply and suggested approach. I think I would probably just find it easier to use the TV remote control to turn the TV off rather than use two voice commands to first tell the TV to switch to HDMI and then a second to tell it to turn off.

What's frustrating is that I definitely used to be able to turn off the TV using a voice command regardless of whether the selected source was the aerial, an app or HDMI. So I know it's been possible to do it in the past, but a little while ago this simply stopped working for some reason.

So is it possible there's a setting that I just need to change to get it working again?

Thanks

Chris

[JenniferV]

Hello UncleSimmo,

Thanks for getting back to us. You may try to plug in the Chromecast into a different HDMI port on your TV and turn off/on the CEC on your TV. You may also contact your TV manufacturer for additional help.

Thanks,

Jennifer

[JenniferV]

Hey there,

It's me again. How's it going? Still need help?

Regards,

Jennifer

[UncleSimmo]

Hi Jennifer,

Unfortunately switching the Chromecast to a different HDMI port didn't work. Neither did turning the CEC off and back on again.

I guess I will have to try getting in touch with LG as the manufacturer of the TV.

I always find it annoying when something works fine and then suddenly stops working!

Thanks for your help

Chris

[UncleSimmo · Accepted solution]

Hi,

If anyone else finds this thread in the future and has the same problem as me, I managed to solve it by disconnecting my Chromecast and simply using the functionality already built into the LG TV.

I set up the device from my Google Home app using the "Works with Google" option and then through LG ThinQ. There are videos and information on the LG website about the process you have to follow (and also videos on YouTube).

Happy to say I can now turn the TV off / on regardless of whether it is on the aerial, apps or HDMI!

Thanks,

Chris

[JenniferV]

Hi UncleSimmo,

Woohoo! Glad to hear that the issue has been sorted out and thanks for sharing your resolution in the Community — we appreciate it! In the meantime, do you still have other questions and concerns?

Thanks,

Jennifer

[UncleSimmo]

Hi Jennifer,

Nope, no other questions or concerns.

Thanks

Chris

[JenniferV]

Hello there,

Got it. Since you don't have any more questions and concerns, I'll go ahead and lock this thread. Feel free to create a new one should you need help in the future.

Best,

Jennifer

[Jeran]

Hey there,

Did you have any more questions or need any additional help? If not, I'll go ahead and lock up this thread in 24 hours.

Just checking up,
Jeran
 

[UncleSimmo]

Hi Jeran,

See my reply above. I am going to contact LG to see if they can help.

Thanks

Chris