I use to watch HDMI through a mini display adapter to my Panasonic Plasma. It worked great. Now nothing. The MacBook Pro has audio in the output stream normally; both audio and video are not present. Only silent black and a flash when I plug in HDMI cable through adapter. Only thing different: MAVERICKS 9.2! I tried downgrading, but no can do, and I had to restore to Mavericks 9.2 Help!!!!
MacBook
Pro, OS X Mavericks (10.9.2), No multiple display under mavericks
