hdmi not working mac resolution not supported

The output signal set on your source device may be indicated on its display or in its menus.Make sure the connected device is set to output through its HDMI connection and the video format being output is compatible with the TV. Try a different device that can output an HDMI video signal using the same connections. If the issue is resolved, use this HDMI port or try connecting back to the previous HDMI port.Try connecting to a different HDMI port on the TV.If you're using an audio system such as an amplifier or home theater system between the TV and your video source, make sure that the input setting on the audio system corresponds to the video output source. Note: The location of the Input button on your remote and the number and names of the inputs may be different on your TV. On the supplied TV remote control, press the INPUT button repeatedly until it shows the correct HDMI input where the source device is connected.Verify which HDMI input on the TV that the source device is connected to.On the supplied remote, press the HOME button, then select Settings → Device Preferences → About → Restart → Restart.On the supplied remote, press the HOME button, then select Settings → About → Restart → Restart.On the supplied remote, press the Quick Settings button, then select Settings → System → Restart → Restart.Use the option that best matches your TV to restart the TV using the Settings menu:.Press and hold the POWER button until a menu appears → select Restart.

Press and hold the POWER button until Power off appears on the screen.

Use the option that best matches your TV when using the power button on the supplied remote control to perform a restart:.Note: Skip this step if your power cord is not accessible.

Hdmi not working mac resolution not supported