11 Replies Latest reply: Dec 31, 2012 4:24 AM by Cobbyco
Cobbyco Level 1 Level 1 (0 points)

If I leave my iMac alone a while the screen will go off but it seems that after I don't know how long it pops up the password box with the starry background. This is the box that appears when I jiggle the mouse or trackpad.

 

The problem is this box will not then disappear and it's actually burnt an image on the screen. It does seem to have faded after leaving it switched off for a few days but I'm nervous about leaving it on as it always seems to do this and I don't want a permanent image!

 

I read that Spotify can stop macs going to sleep but I've left Spotify off, in fact I've closed down all programs, but it still happens.  Anybody got any ideas to try?

 

I have the display and computer sleep options set to trigger after about 15m and am running Mountain Lion.  I have Carbonite running in the background but can't think of anything else relevant.

 

Thanks


imac 3.06GHz Core 2 Duo, Mac OS X (10.5.4)
  • 1. Re: IMac won't stay asleep
    1993's Nerd Level 1 Level 1 (15 points)

    Do you manually set it to go to sleep? If not check your 'energy saver' in system preferences to make sure its set to your own preferences.

    If it randomly wakes up, this could be a huge number of reasons such as an automatic software update to a faulty mouse which detects false movement. However if a mac is sleeping properly, moving the mouse shouldnt cause it to wake, you should have to actually click or press a key on the keyboard. It sounds like your mac is just on standby, not actually sleeping.

     

    What sort of mac is it? The 2006 white imacs with eyesight are nautorious for faulty screens. Mine unfortuently is suffering with the dreaded vertical lines. If you are getting screen burn however, I suggest changing your background to a plain colour and more importantly not leaving it on standby with the login screen. Just put it to sleep so that the screen turns off and that should help with avoiding the screen burn.

     

    hope this helps

  • 2. Re: IMac won't stay asleep
    Cobbyco Level 1 Level 1 (0 points)

    Thanks, it's not the latest iMac but the previous one so brushed aluminum rather than white.

     

    I will check those settings and change the batteries in the track pad to see if that helps.

  • 3. Re: IMac won't stay asleep
    seventy one Level 6 Level 6 (8,985 points)

    When the password box pops up it is usually when the mac is restarted after shutdown, rather than sleep.   What do you actually do when you are finished ... Click on Sleep, or Shut down?   Certainly check the settings but this could be something else entirely.

  • 4. Re: IMac won't stay asleep
    Cobbyco Level 1 Level 1 (0 points)

    Generally I just walk away and after a while the screen goes blank until I come back and click the trackpad.  Maybe I should actively click on sleep when I leave it but would that still allow me to access my music in iTunes through the iPhone and Apple TV etc?

  • 5. Re: IMac won't stay asleep
    seventy one Level 6 Level 6 (8,985 points)

    Well, we all have our ways of doing things      I generally put my Mac to sleep if I am away for even a few minutes.   You should check the settings in Systems Preferences > Energy.   My settings are 10 minutes for sleep and display, and items 1,3 and 4 checked off below that.   Then in the schedule screen both boxes are unchecked (this may be your problem).

     

    Of course, these are my choices, not the rule, you understand.

     

    Hope all this is some help.

  • 6. Re: IMac won't stay asleep
    Cobbyco Level 1 Level 1 (0 points)

    Thanks, I'll try those settings.  After observing it this morning I've noticed that it randomly brings up mission control after a while as well.  Batteries on Trackpad were at 18% so I've tried changing them. Ha, just randomly went onto mission control and out again while I was typing this on my iPad.  The iMac seems to be going insane! :)

  • 7. Re: IMac won't stay asleep
    seventy one Level 6 Level 6 (8,985 points)

    I notice also that you are on 10.5.4 if your profile is up to date.   Try updating to 10.5.8 via the combo update.    This passage by Pondini looks good advice, his usually is.   Scroll down to the final section    OSX Tips Installing the "combo" update and/or Reinstalling OSX

  • 8. Re: IMac won't stay asleep
    Cobbyco Level 1 Level 1 (0 points)

    Ah, bit of an oversight on my part there, I'm actually on 10.8.2.

     

    I've checked the energy settings, closed every single application put it to sleep and the display goes blank but after a while the password box pops up and stays there.  Big problem with iMac is I can't switch the display off so I need to shut down the whole thing everytime i leave it and then restart again.

  • 9. Re: IMac won't stay asleep
    seventy one Level 6 Level 6 (8,985 points)

    Ahhh.   I should have realised when you mentioned Mission Control.    Afraid that puts me out then; I don't have Mountain Lion and I am much less acquainted with its workings.   Hopefully someone else will stop by a littls later.

     

    Sorry I can't help further.

  • 10. Re: IMac won't stay asleep
    Cobbyco Level 1 Level 1 (0 points)

    Thanks for all your thoughts anyway.  Unless anyone else can help me it looks like this machine is finished.  It's no good to me if I have to do a complete shut down after each use and then start it up, I might as well have a Windows machine!

     

    So many problems lately I think Apple are going the same way as Windows.

  • 11. Re: IMac won't stay asleep
    Cobbyco Level 1 Level 1 (0 points)

    I found out eventually that my problem was a faulty keyboard!  Got a new one and everything is fine now.

     

    Thanks for all comments.