Macbook suddenly goes to sleep when connected to external monitor

Discussion in 'MacBook' started by jagan, Apr 6, 2011.

  1. jagan macrumors newbie

    Joined:
    May 1, 2006
    #1
    Hi

    I'm having the following problem:

    My macbook sometimes suddenly goes to sleep when connected to an external monitor/screen (connected via. mini-DVI to DVI).

    I have set the Energy saving-preferences to "Never go to sleep", but it stills happens sometimes.

    Any ideas of what might be causing it?
     
  2. SandboxGeneral Moderator emeritus

    SandboxGeneral

    Joined:
    Sep 8, 2010
    Location:
    Detroit
    #2
    Is it plugged in? If you have an external monitor hooked up, it needs to be plugged in, otherwise on battery it will automatically go to sleep.
     
  3. atticus18244fsa macrumors 6502

    atticus18244fsa

    Joined:
    Jul 11, 2008
    Location:
    Waterloo, ON
    #3
    Better than completely freezing like mine requiring a hard reset.:rolleyes:
     

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