iMac external monitor turn display off issue

Discussion in 'iMac' started by knemonic, Jul 13, 2015.

  1. knemonic macrumors 6502a

    Joined:
    Jan 14, 2009
    #1
    Hello,

    I have a dual monitor setup with my 2014 iMac the 1.4ghz model.

    My monitors are set to turn off but my system does not sleep. When I hit the keyboard to Turn the monitors back on, the secondary monitor stays black, doesn't turn back on.

    I'm using a thunderbolt to vga adapter to the monitor. Did a pram and smc reset with no luck.

    What's weird is I was using this monitor on a 27" 2013 iMac just a week ago and not a single issue, which leads me to believe is the iMac. I've also tried another vga adapter. I thought it might be splash top streamer causing problems, which I uninstalled, with no luck and reinstalled and still no luck.

    Any suggestions would be great. Thanks
     
  2. cruisin macrumors 6502a

    cruisin

    Joined:
    Apr 1, 2014
    Location:
    Canada
    #2
    You could make another user account to see if an installed app on your main account is causing issues.
     
  3. knemonic thread starter macrumors 6502a

    Joined:
    Jan 14, 2009
    #3
    Will give that a try, thanks!
     
  4. knemonic thread starter macrumors 6502a

    Joined:
    Jan 14, 2009
    #4
    Unfortunately that did not. I'm beginning to think this is a hardware issue, not software. Gonna try using an hdmi adapter with and hdmi monitor tomorrow.
     
  5. cruisin macrumors 6502a

    cruisin

    Joined:
    Apr 1, 2014
    Location:
    Canada
    #5

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