

The first tool that you can use to cast your Mac’s screen to your Samsung TV is an app called Mirror for Samsung TV. Can you connect a MacBook to a Samsung TV? Also, check the display cable connections, and update adapter software if applicable. Go to System Preferences > Displays and check the resolution and brightness settings.

Go to System Preferences > Displays, click Scaled and hold down the Option key to show and select the Detect Displays button. … Try a new or another known working HDMI cable. If the source device is connected with an HDMI® cable: Make sure the TV and source device are both turned on, then disconnect the HDMI cable from one of the devices and then connect it again. Verify that the source device has power and is turned on.
