Previous 1 2 Next 21 Replies Latest reply: Mar 31, 2013 2:04 PM by BDAqua Go to original post
  • BDAqua Level 10 (122,227 points)

    Well, does the same problem occur if those 4 are not running?

  • maclover6 Level 1 (15 points)

    It still seems to happen when no applications or programs are running.

  • BDAqua Level 10 (122,227 points)

    Hmmm, open Console search for wake... any entries?

  • maclover6 Level 1 (15 points)

    There are no entries at all. I also checked online to see if any of my background running applications would prevent it from sleeping and none of them do. The fact that this only happends when I connect the Apple monitor is puzzling me.

  • Brewster Magneto Level 1 (50 points)

    maclover6, have you tried the AppleJack utility? Recently I had some sleep/wake issues on my PM G5 that I couldn't cure via the usual suspects. In my case, when waking the display from display sleep--the CPU wasn't asleep--by moving the mouse or hitting a key, the screen would wake up, then about a second later the curtain of death would descend, and the display locked up. I had to power off the G5 and restart every time this happened--the logs show kernel panics at those times, but those may have been caused by my powering off a running machine which simply had no active display (vs. shutting it down). Anyway, I remembered I had installed AppleJack, which is a disk repair utility that also removes system disk caches; these get rebuilt automatically in the next restart. Running AppleJack cured the sleep problem on my computer (knock on aluminum). I looks to me that something had corrupted one of the system cache files on disk, and the system has now successfully rebuilt that file.


    AppleJack is at:


    After installation, restart your Mac in single-user mode <Command-S>, then at the command line type:

      applejack auto restart


    This will run AppleJack by iterating through all its tasks in order, then restart your computer in normal mode.

  • maclover6 Level 1 (15 points)

    Thank you so much! This worked! Not only did it work, but it is actually running a little faster! Thanks again!

  • BDAqua Level 10 (122,227 points)

    Great suggestion, thanks... I use it frequently!

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