Will not stay in sleep mode

Using 10.6.7 on a 27" iMac. In the last couple of days, when I put it to sleep using the apple icon, it wakes up after about 5 seconds. No big changes or new software. Repaired permissions. Any thoughts on how to fix the issue would be appreciated.

Unplug everything from the iMac except the original keyboard and mouse.
If this stops the problem, then one of your external peripherals is to blame.
Also take a look in this thread,
https://discussions.apple.com/message/737095#737095

Similar Messages

  • TS3402 iMac with OS X 10.8.4 will not stay in sleep mode.

    After installing latest OS updates, 10.8.4,  we cannot get our iMac to stay in sleep mode.  Energy saving settings have computer sleep and display sleep set to15 minutes, put hard disks to sleep when possible and allow power button to put to sleep are selected.  Wake for network is not selected.  Also allow bluetooth devices to wake computer is not selected. We are using Time Machine using a USB connected seagate disk, USB connected keyboard and bluetooth mouse.  Sleep mode worked before applying latest OS update to 10.8.4 level, which was the only recent change. Now, if put to sleep, monitor goes black for a few seconds then back on.  Appears that something that I haven't identified wakes it up.

    The solution was found in another post.  The suggestion made by marks33 says: 
    My computer would not stay in sleep mode either since update Mac OS 10.8.4 and I tried resetting the SMC.
    Resetting SMC:
    Shut down the computer
    Unplug the power cord and ALL peripherals (mouse, keyboard + ethernet cable also)
    Wait 20 seconds
    Attach power cable and wait another 10 seconds
    Press power button
    Attach all other cables after desktop appears.
    Try it if you haven't already. It cured the sleep issue on my iMac.

  • Mac will not stay in sleep mode

    My IMac running system 10.5.8 will not remain in sleep mode. I have tried closing all running applications and this makes no difference. After restarting the computer it seemed to function correctly for a short time then once again would not remain in sleep mode. The energy saver has no wake options set.

    Here are 3 shots...of course things keep moving but I think I got most off.

  • Why will my Mac 8,1 intel desktop not stay in sleep mode for more than 5 seconds?

    Why will my Mac 8,1 intel desktop not stay in sleep mode for more than 5 seconds?
    Have tried repeatedly and end up shutting down instead of "sleeping:.

    Hello, most usually it's some USB device causing that, but...
    One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
    PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
    Reboot, test again.
    If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts (Users & Groups in later OSX versions)>Login Items window to see if it or something relevant is listed. Or an errant process eating up RAM.
    Check the System Preferences>Other Row, for 3rd party Pref Panes.
    Also look in these if they exist, some are invisible...
    /private/var/run/StartupItems
    /Library/StartupItems
    /System/Library/StartupItems
    /System/Library/LaunchDaemons
    /Library/LaunchDaemons

  • Mac mini does not stay in sleep mode

    Another sleep issue here: Mac mini (late 2012) will not remain in sleep mode since updating to OSX 10.8.5, I had no problem with 10.8.4. System log seems to indicate that the USB controller is sending a wake signal (lists all USB contoller ports as possible source). I have reset the NVRAM to no effect. Any suggestions how to proceed. I am not ready to update to Mavericks yet, which may or may not solve problem. I would like to sort this out if possible in 10.8.5.

    Look down towards the bottom of > Why your Mac might not sleep or stay in sleep mode
    Are a keyboard and mouse connected and working correctly?
    Do you have any other external USB or FireWire devices connected? Try removing or disconnecting them one by one, when not in use, taking care to dismount any that are storage devices before disconnecting them.

  • MacBook pro 17" will not wake from sleep mode

    Ok so my MacBook Pro 17" with osx 10.6.8 will not awaken from sleep mode. when attempting to wake it up the screen dosent come on and the mouse and keyboard do not receve any power. to get back on the computer i have to force a hard restart by holding the power button for 10 seconds then pressing it again. then it boots to where i left off when i closed the lid. i have read a few forums about this problem and i have went through all the steps of reseting various things and went as far as going into terminal using sudo to disable safe sleep and nothing helps. i noticed an unusual error in my console. here is a  copy of my console log. the one in question is  {7/14/13 4:52:43 AM com.apple.UserEventAgent-Aqua[118] dontAutoLoad = EMPTY!}  someone please help me I am over 150 miles from the nearest apple store or authorised retailer

    Active Profiles:
    Battery Power                    -1*
    AC Power                    -1
    Currently in use:
    halfdim          1
    sms                    1
    hibernatefile          /var/vm/sleepimage
    gpuswitch          2
    disksleep          10
    sleep                    0 (imposed by 223)
    hibernatemode          3
    ttyskeepawake          1
    displaysleep          5
    acwake                    0
    lidwake          1
    Also I broke down and called support again this time a senior advisor's boss recorded the events and sent the data to their "engineering department" still waiting on the results hopefully they will get back to me sometime between today and saturday. will post the results of the tests. also this is a 2011 17in intel i5

  • IPhone 1.1.4 will not wake from sleep mode

    Hi all,
    I have an iPhone with 1.1.4 firmware. The problem that I have is that the phone will not wake from sleep mode by pressing the "home" button. I have to press both the "home" and "sleep/power" buttons and hold them for 6 seconds for the phone to restart. I did restore the phone twice - did not solve the problem. Then, one day, I left it charging for about 3 days and when I came back it started working fine. Not for long though( After about a week of normal usage the wake up problem came back. I don't know what to do. I don't think it's the software problem, since I did complete restoration 2 times.
    If the phone is connected to a charger or computer - it wakes up fine.
    Thanks, Gene K
    Message was edited by: rimini

    rimini,
    When you've restored the iPhone, have you tried setting it up as a new phone? This would truly eliminate software as a possibility.
    If setting it up as a new phone doesn't correct the issue, it's probably time for service: apple.com/support/iphone/service/faq/
    Hope this helps,
    Raleigh

  • Will not wake from sleep mode

    When I close then open the lid on my MacBook, it will not wake up from sleep mode.  I have to reboot by holding down the power button for 10 sec.  When it restarts, it takes a long time to get past the gray screen with the apple logo.  I also have this same problem when it goes into sleep mode, when left idle.  I have since changed the settings so it will not go into sleep mode when idle in system preferences.  I have reset PRAM and SMC, but the problem still persists.

    I have the same problem, intermittently.  I think it has something to do with full-screen mode, which I use intermittently.  Have you noticed this happening only when you are in a full-screen app?
    I also have a MacBook Pro from 2011, and I know for sure my MagSafe power adapter is fine and not part of the problem.
    I have noticed a few things that may be hints at what is happening:
    one time, (all??) while my screen was basking in the glow of sunlight from the side, I saw that the screen pixels were indeed "on", that the back-light of the screen was just off.
    Which led me to the conclusion that my MacBook Pro was indeed waking from sleep, the screen was just not lighting up.
    But that theory was disproved this morning, when when waking from sleep, the screen was black, except for my cursor. My cursor was completely visible on a black background.  Huh??  It was like some software was putting up a black modal dialog over the whole screen. Also, the Apple Logo on the back of the laptop screen was fully lit -- meaning the backlight was on.  The machine was awake (curson moving on a black background), and the screen was fully back-lit.
    I'm not sure yet how consistent this behavior is...  I will take more careful notes each time this problem happens in the future...  But, it looks like I have rogue software that is trying to make my machine look like it is sleeping.
    To "capture" the culprit I think I could set up a hot-key command that takes a snapshot of all running processes in Activity Monitor. This could show what processes are running when "waking" from sleep. nabbing the culprit?
    I use Snapz Pro. That is non-standard software running with control over screen functions. Maybe Snapz Pro has a problem?  I doubt it, but maybe, because it has hooks into background tasks with video. Snapz Pro is my only 32-bit process. Could Snapz Pro be the cause?  I use Snapz Pro all the time.
    The problem seems to be related to Full-Screen mode.  Could it be possible that full-screen apps sometimes have problems returning from sleep?  I know there are viewControllers responsible for handling events when waking. Could the symptoms of not waking from sleep be caused by bugs in full-screen apps?

  • Satellite P100 will not stay in hibernate mode

    Hi everyone~
    Satellite P100
    Vista
    Before going to bed I always put my computer in hibernate mode. It won't stay in hibernate mode. I'm not talking about sleep mode here.
    I click the start button then choose hibernate. It goes into hibernate and I go to bed so I don't know when it goes out of hibernate mode.
    I used to have to press the power button to get it up and running after it went into hibernate. Along the front of the computer are 5 blue lights. I will call them a,b,c,d, and e.
    d&e are generally off when I'm using the computer.
    a, b, and c are lit up when I'm on the computer. When it goes into hibernate mode b goes out.
    When I get up in the morning a,b and c are all back on and all I have to do is move my mouse around then log on instead of first pressing the power button.
    I have some scheduled tasks but I've always had those.
    Please help. Is there a setting I can do to take care of this issue? TIA

    You can create an on task!!!
    - go to Start > Control Panel > System and Maintenance > Administrative Tools > Task Scheduler- In the far right pane, click Create Basic Task.
    - In the Create Basic Task Wizard, type the name of your task then click Next.
    - schedule based on the calendar, click Daily, Weekly, Monthly, or One time and click Next.
    - Leave Start a program selected and click Next.
    - For Program/script, use this path C:\Windows\System32\Wuapp.exe (but you path could be different).
    - Click Next and then click Finish.
    For details you coudl also check this MS page:
    [Schedule a task - How to|http://207.46.197.98/Windows/en-US/Help/d2a0a504-6a29-4358-b04b-d4bd1abf36c51033.mspx]
    _But if you want to change ONLY the Windows update then go here:_
    - Control Panel -> Windows Update
    - On the left click Change settings
    - There you can set the date and time when the update should be installed
    Regards

  • Touchsmart 520-1047c Mouse and Keyboard will not work after sleep mode

    I have an issue which I need some help with. When my computer goes to sleep the wireless mouse and keyboard will not work unless I restart, however each one will wake the system up but will not operate after that. I have tried just making the display go to sleep, both go to sleep but that makes no difference same issue occurs. The only work around I have found is going into the power settings and turning the sleep mode off for booth the computer and display. This does not solve the problem it just masks it. New batteries, unplugged and replugged the dongle, updated the bios and all drivers. Don't know what else to try. Anybody know how to fix this? Thank you in advance for your help.

    Hello , Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More. I understand that the mouse and keyboard on your desktop computer does not work if your computer enters sleep mode, and I would be happy to assist you in this matter! To correct this issue, I recommend following the steps in this document on Troubleshooting sleep and hibernate issues (Windows 7). This should help enable your system to wake from sleep mode using your wireless keyboard and mouse. I also recommend connecting wired peripherals to diagnose the functionality of your keyboard and mouse. If your system is still not able to wake from sleep mode, please follow the steps below to restore the default power schemes on your computer: Step 1. Click the Start button
    Step 2. In the search box, type "Command Prompt"
    Step 3. Right-click Command PromptStep 4. Click Run as administrator
    Step 5. At the command prompt, type powercfg /restoredefaultschemes and press Enter  reference: http://superuser.com/questions/669571/windows-8-1-64-bit-power-schemes-gone Please re-post with the results of your troubleshooting, as well as the requested information above. I look forward to your reply!
    Regards  

  • Safari will not work after sleep mode

    After going into sleep mode safari will not work. Firefox works fine, mail is fine. Happened after upgrade  to O S x .  Browser is Safari 8.  How do I fix this?

    Please read this whole message before doing anything.
    This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
    Step 1
    The purpose of this step is to determine whether the problem is localized to your user account.
    Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
    While logged in as Guest, you won’t have access to any of your documents or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this behavior; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
    Test while logged in as Guest. Same problem?
    After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
    *Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.
    Step 2
    The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
    Please take this step regardless of the results of Step 1.
    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
    Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
    Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
    The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
    Test while in safe mode. Same problem?
    After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of Steps 1 and 2.

  • HP Officejet Pro 8500 Wireless (Vista x64) Will not print after Sleep Mode

    Hello,
    As the title says the printer does not print after coming back from sleep mode. Before entering sleep mode the printer works fine and is responsive. After coming back from sleep mode the printer is still responsive (buttons on the touch screen can be pressed) but unfortunately does not accept any print jobs. Currently, I restart the printer to get it to print. It is connected wirelessly through WRT610N Linksys Router. Any suggestions or solutions would be greatly appreciated.
    -Artem Durytskyy

    I have been having the same problem all during my warranty period. But no one ever told me it was a firmware problem until two days ago connected to the sleep mode for the wireless one. Supposedly, they have downloads for wire ones now online which I found for 909a and 909b, but not 909g which is wireless. Now I am out of warranty and they won't replace it. I have a long history with tech support since early 2010. Right now, they are sending me a power adapter to try, said to turn off sleep mode (which I dont' know how). Then I told them I found online a firmware download, Apr 2010 to update firmware. My current version is different that the one listed for the download. So, I'm going back to TS to have them fool with it. Has anything worked for you?
    Officejet Pro 8500 Wireless, A909g. It's been a problem from the beginning

  • My itouch will not go into sleep mode please help

    Every time I play on my itouch it and then set it down for a minute it just turns completly off instead of going into sleep mode. How do I get it to go to sleep mode?

    Try restting the PRAM

  • Why wont my screensaver activate, my computer will not go into sleep mode automatically.

    I just bought a new iMac i5 processor 21.5 inch and I cannot get the screensaver to engage and the spaces / expose will not work either.  Any ideas what is wrong?

    Try restting the PRAM

  • I have a mac mini which will not wake from sleep mode since installing yosemite.

    The cursor moves when using a track pad and magic mouse, but I can't click on anything. Also computer always starts in safe mode now.
    Am I the only one having this problem. I have sent the error messages to Apple, but have not seen any updates that might address this issue.
    I now have to turn off the sleep function which don't seem right to me. Any advice would be appreciated.

    Hi ..
    See:  "If your machine only boots into Safe Mode (Shift key) any of these may be the cause"  >  ..Step by Step to fix your Mac | Apple Support Communities

Maybe you are looking for