How to Adjust Speaker Volume on a Display Port by Using the Mac’s Media Keys?

Sometimes, if you want to connect with Mac to an external display, then you might find that the Mac’s on-screen and keyboard volume controls are completely disabled. It is because the HDMI, Display Port, and Thunderbolt connections carry a permanent volume digital audio signal so that the external device will easily control the level of Read more about How to Adjust Speaker Volume on a Display Port by Using the Mac’s Media Keys?[…]