5 Replies Latest reply: Nov 24, 2011 10:42 AM by lsb
lsb Level 1 Level 1 (120 points)

Hi,

 

After Lion, I had the sleep problems where the display goes black but hard drive stays on and active.  I turned off all sharing and that resolved the problem.

 

Yesterday, however, problem returned.  So here is where I am:

 

1) All sharing off

2) CMD OPT P +R reset

3) wake for network access unchecked

4) bluetooth devices off

5) removed all peripherals and still won't sleep

6) shut down all programs and still won't sleep

7) downloaded Please Sleep-does not work

 

I did download a program yesterday "Duplicate Annihilator" for Aperture to remove file duplicates but otherwise, no changes to system.

 

Does anyone have any ideas how to resolve this issue-I can't have hard drive running all the time.

 

Thanks.

lsb


iMac, Mac OS X (10.3.x)
  • durignieux pierre Level 6 Level 6 (10,625 points)

    Hello

     

    Try reset P-Ran and SMC

     

    keep your system up to date , try see if an EFI update missing ?

     

    Just for testing try create a new user acount , see if new account go to sleep mode in normal way ?

     

    if is possible use an external drive or flash drive with a fresh system installed on it , boot from it and see if problem ocure again ?

     

    need to know ,do you adding or replace ram or harddrive on this imac ?

     

    HTH

    Pierre

  • lsb Level 1 Level 1 (120 points)

    Hi,

     

    I'm not sure how to reset p-ran and smc.

     

    System is up to date.

     

    No updates missing.

     

    New user account did same: black screen, hard drive still running

     

    No replacement of ram or harddrive on imac.

     

    Thanks.

  • lsb Level 1 Level 1 (120 points)

    Also, reset pran and SMC.

     

    Still won't sleep-can hear the hard drive running so some activity must be going on-display goes to sleep.

     

    Any other ideas?  I simply don't know what to do.

     

    Thanks.

    lsb

  • durignieux pierre Level 6 Level 6 (10,625 points)

    Hello

     

    Try boot from an other system , installed on external drive ?

     

    advanced power save setting ? about spin down hard drive when not used ?

     

    ( yes i guess you alraidy done that dozen time )

     

    if is possible try snapshoot your setting an post them ( CMD  -SHIFT - 4 ( not use numeric keypad )

     

    for power save - screen saver option -

     

    do you use file vault ? any back ground application ? anti-virus ? task who are specialy launch when sleep mode is activated ?

     

    re-install a totaly new fresh system could be a good idea at this point , BUT do a back up first

     

    no more ideas for now

     

    HTH

    Pierre

  • lsb Level 1 Level 1 (120 points)

    I don't have an external system to boot from, but yes tried all you suggested.

     

    I don't use file vault or any background applications, no anti-virus...

     

    Thanks for thoughts-open to anything else