New iMac won't go to sleep? Any ideas?

Discussion in 'iMac' started by ctznpark, Dec 5, 2006.

  1. ctznpark macrumors newbie

    Nov 16, 2006
    Hey everyone,

    Just two days ago my iMac no longer falls asleep. It'll go to sleep for like 4 seconds and then it'll turn back on. Does anyone have any ideas about what might be going on. Thanks in advance for any advice...
  2. Gee macrumors 65816

    Feb 27, 2004
    London, UK
    Did you install anything new two days ago? External drives, new software, system updates?
  3. dalvin200 macrumors 68040

    Mar 24, 2006
    Nottingham, UK
    have you got any bluetooth devices nearby?

    there's a setting in the prefs that is checked by default to "allow bluetooth devices to wake this computer"

    i know it bugged me when my bluetooth mouse kept waking the imac!! lol..

    if it's not that then have you tried erbooting the imac and see if that makes any difference?
  4. mad jew Moderator emeritus

    mad jew

    Apr 3, 2004
    Adelaide, Australia
    If it is a Bluetooth (or even a directly connected) device then check the manufacturer's site for driver updates. :)
  5. 4JNA macrumors 68000


    Feb 8, 2006
    looking for trash files
    i have a 1gb usb 2.0 flash drive that will do that to my imac everytime. if it is plugged in and i forget to remove it, then click on sleep, the screen goes off and right back on... light sleeper i guess :rolleyes:
  6. ctznpark thread starter macrumors newbie

    Nov 16, 2006
    thanks guys you guys rock. It was due to a cheap USB 1.0 hub that i was using. my imac is now getting some sleep. thanks again!
  7. amd4me macrumors 6502

    Nov 19, 2006
    Try reading it a story and if that doesnt work get a night light.
  8. Chundles macrumors G4


    Jul 4, 2005
    I was going to suggest jet-lag.

    Good to see it's all sorted now though.
  9. countach macrumors regular

    Oct 23, 2006
    I thought I heard that something in the latest firmware fixes something about imacs going to sleep.
  10. sted macrumors newbie

    Dec 6, 2006
    For me the not going to sleep problem was related to Dashboard being activated. Once it had been opened my iMac would not go to sleep afterwards. I have installed byebye dashboard and now have no problem. I am not sure if this is the case with other reported sleep issues.

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