iMac waking from sleep on occasion

Discussion in 'Mac OS X Lion (10.7)' started by mojo50, Apr 9, 2012.

  1. mojo50 macrumors newbie

    Jun 21, 2011
    Sorry if this has been asked previously. Occasionally our late 2011 iMac, (latest updated Lion OS X), wakes up by itself, and sits at the login screen. It is not consistent. p.s. Yes, I'm sure we haven't clicked the mouse or anything.

    As always, I appreciate any feedback as I have learned a lot from this forum!
  2. GGJstudios macrumors Westmere


    May 16, 2008
    You may find some useful ideas here:

    Mac OS X: Why your Mac might not sleep or stay in sleep mode
    Determine why your Mac wakes up from sleep
    One sleep problem caused by printers - solved ... and another

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