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Click on the AirPlay icon in your menu at the top of your screen (a rectangle with a triangle below).Make sure your Apple TV and Mac are both on the same WiFi network – they need to both be connected to a WiFi network in order for the connection to be established (which is frustrating if there isn’t a WiFi network!).Plug your Apple TV into an HDMI port on the back of your TV.Make sure that you keep the HDMI cable connected throughout. Here, users reported that simply turning off the monitor while the MacBook was working solved the problem for them. This is a quick workaround but seemed to work for a number of people. Plug everything back in and check if the issue is resolved for good.Īnother workaround that worked for a number of people was simply turning off the monitor and then turning it back on.Now, plug out their power supply and press and hold the power button for 3-5 seconds.Shut down each of your devices completely by powering them down completely.Power cycling would force both devices to reset their configurations and in most cases, solve the problem. There are numerous instances where either of the device involved could be in an error configuration which might be glitching the HDMI sound. If none of the methods work, then we can attempt at power cycling our devices. Now make sure you let us know which method worked for you in the comment section below. Note: You may have to do some or all of the above steps to get sound coming out of your TV when connected using a DisplayPort-to-HDMI cable to your MacBook Pro. Select the HDMI device on the left panel, and change the “ Format” values to 00Hz.
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