How to turn off main display when using projector

Discussion in 'iMac' started by JonnyBlaze, Aug 29, 2015.

  1. JonnyBlaze macrumors regular

    Joined:
    May 5, 2008
    Location:
    UK
    #1
    Hi,

    I use a projector running from my iMac via a HDMI adapter and cable to watch films. I'd like to be able to turn the iMac's main display off when the projector is running but I haven't been able to figure out a way. Anyone know how I can do this? I've only recently got the iMac and used to use a 2008 MacBook. With that I could just turn the display off using the display brightness keyboard keys where the lowest setting was off, but on the iMac, the lowest brightness setting is still on.

    Thanks,

    J
     
  2. JonnyBlaze thread starter macrumors regular

    Joined:
    May 5, 2008
    Location:
    UK
    #2
    So answering my own question from another thread... http://forums.macrumors.com/threads...in-display-when-using-plex-on-the-tv.1927026/
    It has been suggested that using 'ctrl option eject' will turn off the screen. Haven't tried it yet.
    Also I have tried using F.lux's 'dark room' setting to really dim the screen.
     

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