External monitor doesn't turn off with sleep

Discussion in 'MacBook Pro' started by mageus, Jul 15, 2012.

  1. mageus macrumors newbie

    Joined:
    Jun 16, 2012
    #1
    I have an external monitor connected to a 2012 15" cMBP via a DP->DVI adapter. When I put the Mac to sleep, the external monitor stays on. The monitor goes to sleep correctly when connected to any other computer.

    Any ideas?
     
  2. phyrexia macrumors 6502a

    Joined:
    Sep 3, 2010
  3. Auzburner macrumors 65816

    Auzburner

    Joined:
    Apr 11, 2008
    Location:
    Syracuse, NY - USA
    #3
    My 2010 17" MBP did the same thing over mDP to HDMI.
    My rMBP does the same thing as well from HDMI out.

    Connected to a Samsung display.

    When connected to my PowerMac G5 over DVI = No issues when sleeping.

    Not sure what causes this, but I'm guessing it has a lot to do with the connection type?
     
  4. lightrack macrumors newbie

    Joined:
    Jul 6, 2013
    #4
    Hello,

    I meet the same problem with MBP 15" 2012. The problem occurs with Samsung 27" SA850 (connected with mDP-DP) and Nec 19" 19070NX (connected with Apple mDP-DVI adapter).

    Some weeks ago everything was fine.

    It seems the problem is with MBP.

    Any ideas?
     
  5. lightrack macrumors newbie

    Joined:
    Jul 6, 2013
    #5
    It seems it was a software problem. I unplugged MagSafe from MBP and external monitor for some minutes and it is fine now :)
     

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