CEC partially works

[nik188]

I have a Vizio TV - CEC is enabled and I am able to discover my chromecast device. 

CEC works to power the TV on and off, but it does not work for audio. I am unable to adjust the volume (up or down) as well as mute the TV. The input feature also does not work. Any thoughts? 

The firmware is all up-to-date and it works fine otherwise. I am just using two remotes still. 

[ovidioj]

Hello @nik188,

Thanks for reaching out to the community! It can be frustrating when volume control isn't working the way you expect it to. Thanks for your effort. Let's troubleshoot the issue with CEC volume control on your Vizio TV and Chromecast.

Here are a few steps to try:

1. Double-check CEC settings:

• On your Vizio TV, navigate to the CEC settings menu (the exact wording might vary depending on your model).
• Ensure CEC is enabled and look for other CEC-related options like "HDMI CEC Sound Output" or similar. Make sure these options are also enabled.

2. Restart Chromecast and Vizio TV:

• A simple restart can sometimes resolve temporary glitches with CEC.
• Turn off both your Chromecast and Vizio TV completely (unplug the power for a few seconds). Then, turn them back on and wait for them to boot up entirely.

3. Verify HDMI Cable:

• Try using a different, high-quality HDMI cable to connect the Chromecast to your Vizio TV.
• Faulty cables can sometimes disrupt CEC communication.

Once you have a chance, letting me know the specific Chromecast model you're using might help narrow down the troubleshooting further. In the meantime, these initial steps should help get your CEC volume control working properly. Let me know if you have any other questions.

Regards,

Jorge