I followed his procedure but I found a bit of ambiguity in it.

It was in a post on Joseph Lorenzo Hall's Not Quite a Blog. However, the other day, I discovered a software process that also worked for me. I found that a Japanese toothpick worked to flip the switch inside. The MacBook Pro thought that there was still a TOSLINK connector attached even though there wasn’t anything plugged into the port. It seems that when removing the headphones with a yank after editing some audio, I must have accidentally flicked a switch inside the port. You can use a TOSLINK minijack cable or an inexpensive adapter that connects to less-expensive TOSLINK cable with plugs.īut the changeover to TOSLINK can happen at any time. Check for System Preferences: Click on Apple menu > System Preferences > Sound. If you still cannot hear sound from your TV, log out of your accoun t on your MacBook Pro, and then log back in. Open the Sound dialog on the MacBook Pro (System preferences > Sound > Input). Make sure sound output is selected, and you can see the speaker icon next to HDMI in the list of devices. Use the following settings on the PicoStream receiver Audio Output.

The TOSLINK connector is just a skosh (0.5mm) longer than the stereo analog 3.5mm minijack. Select the wheel icon with a down-pointing triangle in the bottom left window. Suddenly, the audio port is glowing red and the built-in speakers stop working. 2) Press the Shift, Control and Option keys on the left side on your keyboard and the Power buttons at the same time. I have a new model of the MacBook Pro, however, the problem remains.

As I wrote in a post several years ago, the issue is annoying.

Macbook pro audio output