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macbook pro yosemite hdmi vga display arrangement

  1. M

    Arrangement tab in Display won't appear in MacBook Pro OS X Yosemite

    Hi I want to connect my Acer x193w (Mac compatible) as an external monitor to my MacBook Pro OS X Yosemite. I'm using a HDMI/VGA adapter to connect them together. The arrangement tab in the display doesn't show itself even though my wallpaper became blue. The monitor maintains itself in sleep...