5 Replies Latest reply: Aug 24, 2010 10:00 AM by JMVP
guitar guy Level 2 Level 2 (320 points)
hello. I have a 7 year old eMac. It's been great, but it doesn't always wake up from sleep mode. I'll click on the mouse, or press the buttons on the keyboard, but the sleep light keeps pulsing, and it just won't wake up. The screen stays off. The only option is to force shut down, and restart. Even that takes a few times. Any thoughts? Is it time for a new computer, or can I repair this problem. Thank you!!

eMac, Mac OS X (10.4.11), 1 GHz, 768 MB
  • 1. Re: won't wake from sleep...
    guitar guy Level 2 Level 2 (320 points)
    i mentioned that even when I force shut down, and restart, that even that takes a few times. What I meant by that is that when I restart (after a shut down), it seems to go right back into sleep mode. The monitor never lights up or turns on, and the sleep light is pulsing. AFter a few cycles of force shut down, and re-boot, it finally boots correctly, including the monitor.
  • 2. Re: won't wake from sleep...
    Allan Jones Level 7 Level 7 (30,445 points)
    One of the most common cause of wake-from-sleep issues are USB peripherals. Try disconnecting everything but the mouse and keyboards as see if the problem persists. If it goes away, add USB gadgets back on at a time until the problems returns.

    If you have an Airport card installed an are using the eMac wirelessly, post back. There can be an easily-rectified issue with the Airport software default settings that can create your issue. However, it's much more common on notebook computers that move around a lot.
  • 3. Re: won't wake from sleep...
    guitar guy Level 2 Level 2 (320 points)
    ok, will try. Thanks Allan
  • 4. Re: won't wake from sleep...
    Dale Weisshaar Level 6 Level 6 (15,855 points)

    Also, try a PRAM reset. Sometimes helps with this symptom.

     

    DALE

     

  • 5. Re: won't wake from sleep...
    JMVP Level 6 Level 6 (16,840 points)
    Try Allan and Dale's suggestions first; if further tricks are needed, try this:
    For a Mac OS X with sleep problems (file names and locations are for 10.4.x):
    -- trash /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
    -- trash /Users/[username]/Library/Preferences/com.apple.systemuiserver.plist
    -- reboot while resetting PRAM/NVRAM (see Dale's link)