
Then in the television menu, make sure that you select the HDMI input that matches the HDMI port connected to the Apple TV. Or try using a different HDMI cable to see if the cable causes the issue. Unplug both ends of the HDMI cable, then firmly plug them back in.
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Why is there no sound when I connect my Mac to the TV with HDMI?. How do I change Audio output on Apple TV?. How do I get my TV remote to control volume?. Why wont my Samsung TV connect to Apple TV?. Can you turn on Apple TV without remote?. Why does my Apple TV not turn on my TV?. Volume Control: Choose whether your Siri Remote or Apple TV Remote controls volume for your television or your receiver. Go to Settings > Remotes and Devices, then choose the following: Control TVs and Receivers: Choose whether your Siri Remote or Apple TV Remote automatically turns on your television or receiver. Why won’t my Apple TV remote turn off my TV? The new 4th generation Apple TV, unlike prior iterations of the Apple TV, includes support for HDMI-CEC which greatly extends the functionality of the Apple TV remote.
Then, if you have any external sound devices (soundbar or AV amp), you need to plug these into an HDMI port on your TV first, and then power them on. Where HDMI-CEC isn’t working properly, you need to turn everything off at the plug and remove all HDMI cables from your TV. Use the Apple TV remote, go to Settings, select Sleep Now to put soundbar & TV to standby. This will send the HDMI-CEC signal to power ON our soundbar immediately followed by powering ON the TV. Use the Apple 4K TV remote control to press any button to wake up Apple 4K TV.