I am trying to troubleshoot the brightness of a projector connected through a Marantz AV receiver, to my mac Mini running Mojave. I have exhausted the settings on the actual projector.
I am trying to access the Projector brightness, as outlined in a few places online, including this iMore article: https://www.imore.com/how-adjust-your-mac-home-theater-pc-display-properties
I never see the Projector button, when looking at the Display preferences settings. Here is the screenshot from the iMore article.
If anyone knows how to enable this button, I would love to know.