Won't sleep, yet won't wake.

I have a problem with my MacBook that I think others have had too, but I can't find a post about it. Probably 1 out of 2 times that I close my MacBook to put it to sleep, it won't go to sleep. And no, I'm not waiting for 2 seconds and deciding that it won't sleep...I wait for around 30 seconds. If I open it up, however, it won't wake up, and the computer is completely frozen and I have to force-shutdown.
I am running Leopard, however this happened with Tiger as well, so I don't think its a Leopard-related bug.
Also, it seemed to go away (when I had Tiger) after I deleted the hidden volume that it uses to store content for safe sleep, but I would like to be able to keep safe sleep enabled.
Any ideas?
Thanks,
Zeb

You just described my exact same problem to a tee. But, I want to include an additional nightmare. Not only did I have these problems, it actually would sleep when I opened the lid. Then I'd close again and it would wake.
Then, I upgraded to Leopard last Friday. I crossed my fingers but to no avail - no change.
Then Saturday morning I noticed that the screen saver wouldn't come on. I tried a shut down and that didn't work either. I held the power button for 5 seconds and left Starbucks thinking that it might not come back on.
When I got home, I started my Macbook (it worked thank goodness) and immediately tried a re-set of SMC, PRAM, and Permissions for the umpteenth time since about August.
Guess what? To my surprise, everything started working like I had a brand new MacBook. It sleeps and wakes like it's supposed to, screensaver is good, and it will shutdown when commanded.
Please give it a try and see if you have the same result.
I'll root for you. Good luck.

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I'm using a late 2006 2.33GHz imac.I clean installed 10.6 from disc then updated to 10.7 from download.Now every time my computer goes into sleep it won't wake up.Anyone know how to cure this problem please??

I'm using a late 2006 2.33GHz imac.
I clean installed 10.6 from disc then updated to 10.7 from download.
Now every time my computer goes into sleep it won't wake up.
The only way it will restart is to pull the mains lead out of the imac, put it back and try until it will start.
This only happened after reinstalling. Only Apple OS was on the imac and so it must be an issue with the software I believe.....
Anyone know how to cure this problem please?
Thanks
paul

This isn't a fix, more a workaround I used when I had wake from sleep problems that lasted from some point in 10.6.x, through 10.7 and into 10.8 (got fixed for me in 10.8.2). It seems to be connected with Bluetooth failing to wake up properly:
System Preferences>Energy Saver and set 'computer sleep' to 'never'.

Won't sleep, wakes spontaneously

My new Mac Pro has some odd behaviors. First, when using the keyboard shortcut to make it sleep it sometimes won't respond the first time. Sometimes it sleeps right away. Sometimes it takes a few seconds. Sometimes it won't sleep at all unless I use the menu item.
Another oddity is that it sometimes wakes spontaneously for a few seconds then goes back to sleep by itself.
Are these known issues? Are there fixes known?
Thanks.

Look at your kernel log with the Console.app (in your /Applications/Utilities folder). It might give you a clue who might be waking you machine back up. Look for a line that contains the words "Wake reason". There will be some letters to the right of the equals sign following the wake reason indicating the device that caused the wake.
Here's a list of some of the reason codes, and for that matter it's part of an article about sleep failures.

Mac Mini either won't sleep or continually wakes up from sleep

Well, I think I've tried everything...
My mini won't sleep on it's own through energy saver. I can force it to sleep by choosing it in the apple menu - and it will stay asleep. And it will go to sleep through the schedule. I installed "Please Sleep" which forces the mini to sleep but it wakes up 10 seconds later. The monitor sleep works fine.
I unplugged all USB devices - still didn't work.
So it must be a rogue process or something? Is there a way to know which one is forcing the Mac to stay awake? Or any other suggestions?

If you haven't already, try resetting the SMC per this link: Intel-based iMac, Intel-based Mac mini: How to reset the System Management Controller
Luck-
-DP

Won't sleep, wakes right up

Everytime I put my MacPro to sleep it wakes up 4 seconds later and TURNS ON MY SCANNER? I've reinstalled the scanner to no avail. Also after falling asleep due to inactivity, it wakes up and goes to sleep off and on during the night. Any suggestions?
MacPro G5 Mac OS X (10.4.8)

This is for a Mac that won't sleep.
First, read things in Apple doc.#25801 on sleep settings.
Here is Apple doc.#303698 with their tips.
Mine follow;
USB devices and hubs often cause Macs to not sleep or wake quickly from sleep (notably HP printers and scanners, HP all in ones, and Cannon scanners). Disconnect all USB except for keyboard and mouse and try. If it sleeps, add one back at a time testing after each one to find the culprit.
If you've set your Mac to recieve faxes, it may not be able to sleep. It might also have a damaged preferences file.
If you use your Mac for faxing, open System Preferences. click Print & Fax, click the Faxing tab, and uncheck the Recieve Faxes On This Computer box.
If that does'nt work or you've never faxed on your Mac, go to Finder/Hard Drive /Library/Preferences/SystemConfiguration and delete the com.apple.PowerManagement.plist and com..apple.AutoWake.plist files (if your Mac asks, type your admin. password).
If the latter file isn't present in the folder, go to user name(probably your name)/Library/Preferences, delete the com.apple.systemuiserver.plist file, and reboot your Mac.
Hope this helps!
P.S. One member here reported this (Michael Gleason);
"I have had this problem with my IMac G5. It is surprisingly irritating. LaCie's Silverkeeper backup software was the cause. By default it gave itself permission to wake up the computer to check if a backup was needed. Do you have this or a similar program installed which has scheduled activities including wake-up permissions as an option?"
Dave Hamilton provided this link, xlr8yourmac.com, to a member, which addresses failure of deep sleep with some users that updated and added new FireWire and USB cards.
tomhorvat adds this; After few days of messing around I found out that I had desktop background (wallpaper) set to change every 1 minute.
After unchecking "Change picture..." in system preferences (under Desktop/Screen saver), my powerbook went to sleep all by itself.
Cheers!
DALE

My iMac 27 2010 vintage goes to sleep and won't wake up...I have to push the on off button and hold till it shuts down and then re start...This is not good..Help please

My mac iMac 27 2010 vintage goes to sleep and won't wake up till I hold the on off power button....Then I have to restart as it is locked up....This it intermittent..
Help Please
Jim

Ops I replied to myself in error.....
Tom:
I performed the steps indicated but this morning when I clicked the mouse and hit the space key and clicked the track pad again as before nothing happens.
I hold the power button for a few seconds and the screen fills as if the computer was normally awakened but it is locked up.
Then I have to shut it down with the power button and then power it up as a reboot.
Not good...SMC reset didn't work....Throughout the day yesterday I put the computer to sleep and woke it up normally. It seems to be a overnight problem.
Am I going to have to shut it down everynight?
Jim

MacBook Pro won't stay asleep with external monitor attached. When sleep is selected from the Apple menu the computer will go to sleep only to continually wake up...go back to sleep...wake up...etc. every few seconds.

MacBook Pro won't stay asleep with external monitor attached. When sleep is selected from the Apple menu the computer will go to sleep only to continually wake up...go back to sleep...wake up...etc. every few seconds. This only happens when using the external monitor. Does anyone have any suggestions?

Mine does that too. The worst thing is when it goes to sleep, then wakes up and keeps running while the lid is closed and it is wrapped up in a case. I am afraid when the hot weather comes it is going to burn up. I am hoping Apple fixes it in the software or they may have a melted MBP to replace.
Then when I open the lid it is crashed running at fill tilt, pumping out heat to beat the band. I am forced to hold the button down and reboot.
I wiped my hard disk and reinstalled my OS, but it didn't help. I reversed my OS to 10.5.0 and it solved the DVI problem but still won't sleep. This post will probably be deleted by Apple, they did it a few days ago. I just don't know what to do, and I consider myself a real Apple expert. Just hoping you realize you are not the only one.

My Macbook pro, (late 2010) sometimes will sleep and won't wake up. then the sleep light flashes.What's the problem?

My Macbook pro, (late 2010) sometimes will sleep and won't wake up. then the sleep light flashes.What's the problem

Hi I've been following this thread (along with a different one on the same topic). I've been having the same problem with my ibook. I can add that I have no problem with startup. It's just that the screen "goes to sleep" unexpectedly and may operate normally for a few minutes or a few hours at most. Opening and closing the lid or restarting seems to cause it to awaken but then usually for just a few seconds or minutes. If it is connected to another video display that display continues functioning fine even though the computer screen is blank. In addition the desktop is there and visible faintly or if totally blank can be backlit through the apple logo and can be read. I've had my logic board replaced twice under the extended warranty and assumed it was that but now I'm thinking of the reed switch. Apple refuses to consider any further work under warranty as the last repair was in Jan, 06 and they claim only a 90 parts warranty and the machine is from 03. Any thoughts before I cut the wires? I have reset the pmu, run cocktail and disk utility. Other than the sleep issue the machine works fine. thanks Ronda or anyone else who has any ideas... Dave

Mac Mini 2009 SL 6.0.1 won't sleep with Wake on Demand turned on...

I'm having an issue where my Mac Mini 2009 won't go to sleep at all when I have Wake on Demand turned on. I have been manually making it go to sleep and then loath and behold its back on a few minutes later. I know it's supposed to turn on once every two hours or so, but my Mini appears to not be sleeping at all after it turns back on. I thought this feature was supposed to save me electricity and money, not the opposite. I also have the Mac to go to asleep after 5 minutes. It's not doing that either. I haven't checked the logs to see what's going on. Any ideas?

Nope. I did change a few settings and the mac now manages to sleep. However, it wakes a few minutes later and then eventually goes back to sleep. This process cycles.
I found some good info on this site...
http://reviews.cnet.com/8301-13727_7-10330473-263.html?tag=mncol
I basically just went into the terminal and with root privileges did a "pmset -a ttyskeepawake 0" which turns off the possibility of a remote login event.
Because my initial error message also was saying something about my airport I assumed it might be worth turning on AirPort on the Mini and forcing it not to make any connections to my AirPort Extreme station. At this point, I have turned off AirPort to see what it does with just the ttyskeepawake option turned off.
I might try a PMU reset to see if that has any effect.
Another thing that comes to mind is I have the Mac Mini hooked up to a Denon AV Receiver and then to an HDTV via a mini DisplayPort to HDMI adapter. Perhaps, the Denon is waking it up?

Won't sleep, won't wake

I'm having two problems with sleep mode:
WON'T SLEEP
my iMac G5 won't sleep even though sleep mode is activated in Energy Save preference pane (file sharing off).
WON'T WAKE
When I put my machine to sleep at night (sleep item under apple menu), it won't wake up in the morning. The blinking sleep light indicates my iMac is in sleep mode. I hit a key to wake it. The sleep light turns off. Nothing else: no noise, no screen but the black on. I wait a few minutes and press the power button: nothing happens. Once it starts up after a hard boot (power button, 5 secons). Most of the time I have to wait an hour or two and then I can start up my machine by pushing the power button.
This problem occured yesterday for the first time. Today I did many test with same results: no wake after "manual" sleep mode and no "automatic" sleep.
Note: Apple Hardware Test did not detected any problem.

Even though the hardware test did not indicate a problem, you may still have one. I'd give AppleCare a call. Also note, if you are out of the one year or AppleCare coverage, you may still qualify for this program:
http://www.apple.com/ca/support/imac/repairextensionprogram/

Macbook Pro late 2008 17inch won't sleep or wake up

Recently I inset a SSD as a primary disk for the system and the original hard drive for storage. The system was upgraded to Marvericks 10.9.2. The computer is Macbook Pro 17 inches Late 2008 edition, A1229.
When I close the lid, the computer won't sleep. I tried to close lid under safe mode. It works fine. However, even if all the programs are closed, the computer won't sleep when the lid is closed. I tried to change the settings for power saver and bluetooth. It doesn't help.
There are so many people experiencing the same problem. I can't believe there is still no solution. PLEASE HELP.

I have tried to imput "pmset -g" in the terminal. The output was
sleep 10 (sleep prevented by UserEventAgent, mds, backupd, backupd)

Machine won't sleep on it's own.

This may not be a Leopard specific issue, I had it with Tiger also. My eMac and new iMac won't sleep with the HP All-in-One printer software installed. The software has three active apps (one which controls a root process) that won't let it sleep. I can manually sleep it, but the energy saver setting is useless. The display will sleep, but not the machine.
I posted in the eMac category, but this is not machine specific, either, seems to be HP specific.
I trashed the culprit apps, but then I couldn't scan (the device was not found); it did let the machine sleep, though. I tried fixing the permissions after re-installing the latest software from the HP site (a VERY long process), and turning off the printer, still no sleep.
Anyone else have this issue? Any suggestions? I thought maybe if I created an alias for the culprit apps and stored the originals on a removable device, or even a .dmg and only mount it when I need certain printer functions, that may stop them from constantly running.
Any help would be appreciated
Bob
Message was edited by: Robert Treadway

Thanks gws,
My eMac FINALLY achieved sleep last night after about 50 min. I have the sleep timer set for 1 minute, maybe the fact there was a scheduled TM backup kept it awake. I have the printer turned off, and it has been manually slept and re-started since it was turned off, don't know if any of those was a factor.
A few logs from last night/this morning:
Feb 29 23:23:15 Robert-Treadways-Computer kernel[0]: System Wake
Feb 29 23:23:15 Robert-Treadways-Computer kernel[0]: Wake event 0020
Feb 29 23:23:15 Robert-Treadways-Computer kernel[0]: Sound assertion "0 != err" failed in "AppleLegacyAudio/AppleTexas2Audio/AppleTexas2Audio.cpp" at line 960 goto Exit
Feb 29 23:23:15 Robert-Treadways-Computer kernel[0]: ^P
Feb 29 23:23:15 Robert-Treadways-Computer kernel[0]: USB caused wake event (OHCI)
Feb 29 23:23:16 Robert-Treadways-Computer kernel[0]: UniNEnet::monitorLinkStatus - Link is up at 100 Mbps - Full Duplex (PHY regs 5,6:0x4de1,0x0007)
Feb 29 23:34:25 Robert-Treadways-Computer fseventsd[38]: callback_client: ERROR: d2fcallbackrpc() => (ipc/send) invalid destination port (268435459) for pid 219
Feb 29 23:36:02 Robert-Treadways-Computer Mail[226]: Trying to add a To Do UID (3FA8ABA1-EC04-4B4B-A3D8-B9E27DE7C614) that already exists in the cache and for the same mailbox. Perhaps this should have been an update. Skipping to avoid cyclic reconciliation.
Feb 29 23:36:09 Robert-Treadways-Computer /usr/sbin/ocspd[229]: starting
Feb 29 23:39:04 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: Starting standard backup
Feb 29 23:39:04 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: Backing up to: /Volumes/Time Machine/Backups.backupdb
Feb 29 23:39:24 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: No pre-backup thinning needed: 100.0 MB requested (including padding), 167.86 GB available
Feb 29 23:39:54 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: Copied 3569 files (10.1 MB) from volume Macintosh HD.
Feb 29 23:39:55 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: No pre-backup thinning needed: 100.0 MB requested (including padding), 167.84 GB available
Feb 29 23:39:58 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: Copied 441 files (32 KB) from volume Macintosh HD.
Feb 29 23:40:00 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: Starting post-backup thinning
Feb 29 23:40:14 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: Deleted backup /Volumes/Time Machine/Backups.backupdb/Robert Treadways Computer/2008-01-30-201029: 167.85 GB now available
Feb 29 23:40:19 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: Deleted backup /Volumes/Time Machine/Backups.backupdb/Robert Treadways Computer/2008-02-27-231957: 167.86 GB now available
Feb 29 23:40:19 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: Post-back up thinning complete: 2 expired backups removed
Feb 29 23:40:19 Robert-Treadways-Computer /System/Library/CoreServices/backupd[236]: Backup completed successfully.
Mar 1 00:00:35 Robert-Treadways-Computer newsyslog[260]: logfile turned over
Mar 1 00:00:35 Robert-Treadways-Computer newsyslog[260]: logfile turned over
Mar 1 00:11:00 Robert-Treadways-Computer kernel[0]: System Sleep
Mar 1 05:55:37 Robert-Treadways-Computer kernel[0]: System Wake
Mar 1 05:55:37 Robert-Treadways-Computer kernel[0]: Wake event 0020
Mar 1 05:55:37 Robert-Treadways-Computer kernel[0]: Sound assertion "0 != err" failed in "AppleLegacyAudio/AppleTexas2Audio/AppleTexas2Audio.cpp" at line 960 goto Exit
Mar 1 05:55:37 Robert-Treadways-Computer kernel[0]: ^P
Mar 1 05:55:37 Robert-Treadways-Computer kernel[0]: USB caused wake event (OHCI)
Mar 1 05:55:39 Robert-Treadways-Computer kernel[0]: UniNEnet::monitorLinkStatus - Link is up at 100 Mbps - Full Duplex (PHY regs 5,6:0x4de1,0x0007)
I had anacron installed, but removed it the best I could, it is not needed in Leopard.........
Thanks for the advice, gws, maybe your system would react the same after re-start and/or sleep with printer turned off?
Bob
P.S. Be sure your Mail is not set to check for new mail every 1 minute, that will stop sleep, too
Message was edited by: Robert Treadway

LaCie thunderbolt won't sleep on Mac Mini 2014

Hello,
When my external LaCie 2Big 12 TB thunderbolt external drive is connected to my new Mac Mini the system isn't going into sleep mode and the LaCie keeps spinning all the time (and getting quite warm in the end).
I tried to solve this by running the disk utility program and to change settings in the energy settings but it won't help.
PS: I use the Mac Mini as a server for file sharing and to host the iTunes media file.

Hi Triphonius,
I'm sorry to hear you are having issues with your Mac Mini. It sounds like you have been on the right track in your troubleshooting. If you are having issues with your computer and/or your external hard drive not going to sleep as expected, you may want to double-check your Energy Saver settings, as detailed in the following article. In particular, you would want to make sure that the "Put the hard disk(s) to sleep when possible" and "wake for network access" is selected (Note: if you are using it as a server, it may not sleep due to continous network access). You may also want to test the Sleep function by seeing if it will allow you to manually (immediately) put your system to sleep from the Apple menu.
About Energy Saver sleep and idle modes in Mac OS X - Apple Support
Regards,
- Brenden

My MBP won't sleep HD, and I have tried every solution already posted.

This is a persistent problem that began over 1 year ago, so information about how this unit might have been configured when it began is no longer available, but I have scoured this and google in general, using all search terms I can think of and still I can not pin point a reason my HD will not sleep. I have been advised that there is a "process" keeping my unit awake, but I don't understand how that is possible when it won't even sleep when it is on the startup screen. So here are some particulars.....maybe you have some new thoughts?
I drive a MBP with a 2.4 Core Duo processor running OS 10.9.1, 5gb of mem, 750gb of storage with 500+ free.
1) I made a clean install of system software and a clean upgrade to Mavericks (as a way to try to solve the problem which began when I was using Mtn Lion). There is no third part software loaded onto the machine, yet.
2) I have yet to launch iTunes, or iPhoto, or a Browser, no printer has been added.
3) The result is the same regardless of user or preferences. It does it in "safe mode". The Terminal doesn't give any reason for aborting sleep using "pmset -g" command. It just has a "10". Bluetooth is turned off, notifications are turned off, sharing is turned off, airport is turned off...it's not even connected to the internet. The only software on the computer is the system. There are no peripherals.
4) It won't sleep even on the start-up screen. It won't sleep if I go through the menu or close the lid. It will power off the monitor, and begin to wind down the HD, but just as it reaches the end of the sequence BING and the screen comes on again. If the lid is closed, it will stay that way until the battery runs out, unless it's plugged in. SMC and VMRAM resets not effective.
5) I have no files on this computer so I don't care about losing them.
6) This computer did not have this problem using Snow Leopard, and even worked for a time using Mtn Lion and changing to Mavericks has not affected the problem which leads me to think it's not OS related. It acts like a firmware issue, but as far as I can find there is no firmware upgrade for my unit.

Hello Bobz,
Thank you for responding. You require that I modify #2, above. I have now gone on internet, opened Safari. I downloaded etrecheck, restarted, waited for computer to cycle through sleep cycle (1 min). After failure, I ran etrecheck. Here are the results:
Hardware Information:
          MacBook Pro (15-inch Early 2008)
          MacBook Pro - model: MacBookPro4,1
          1 2.4 GHz Intel Core 2 Duo CPU: 2 cores
          5 GB RAM
Video Information:
          GeForce 8600M GT     - VRAM: 256 MB
System Software:
          OS X 10.9.1 (13B42) - Uptime: 0 days 0:29:13
Disk Information:
          ST9750420AS disk0 : (750.16 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    inni (disk0s2) /: 749.3 GB (353.92 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
USB Information:
          Apple Inc. Built-in iSight
          Apple Inc. BRCM2046 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Apple Computer, Inc. IR Receiver
          Apple, Inc. Apple Internal Keyboard / Trackpad
FireWire Information:
Thunderbolt Information:
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
Launch Agents:
User Launch Agents:
User Login Items:
          None
Internet Plug-ins:
          Default Browser: Version: 537 - SDK 10.9
          QuickTime Plugin: Version: 7.7.3
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
          AirPlay: Version: 1.9 - SDK 10.9
          AppleAVBAudio: Version: 2.0.0 - SDK 10.9
          iSightAudio: Version: 7.7.3 - SDK 10.9
3rd Party Preference Panes:
          None
Bad Fonts:
          None
Old Applications:
          None
Time Machine:
          Time Machine not configured!
Top Processes by CPU:
               5%          WindowServer
               2%          EtreCheck
               0%          mds_stores
               0%          mds
               0%          imagent
Top Processes by Memory:
          61 MB          Finder
          51 MB          mds_stores
          46 MB          WindowServer
          31 MB          mds
          31 MB          Dock
Virtual Memory Information:
          3.75 GB          Free RAM
          617 MB          Active RAM
          130 MB          Inactive RAM
          530 MB          Wired RAM
          218 MB          Page-ins
          0 B          Page-outs

MacBook Pro won't sleep with external monitor

Hello,
have a problem. I'm using external monitor with my MacBook Pro. If I close the lid, I see all windows on external monitor and Yosemite won't sleep. Can you help me please? My external monitor is Samsung 21.5" and I'm connecting it to MacBook Pro via DVI.
Thank you

Hey Renecek,
My first thought was, "Hey, you are using closed-clamshell mode".
How to use your Mac notebook computer in closed-clamshell (display closed) mode with an external display - Apple Support
But then I realized, wait, you want it to sleep.
For that, check out the suggestions in these articles.
OS X Yosemite: If your Mac won’t go to or stay in sleep
OS X: When your Mac doesn't sleep or wake - Apple Support
Take care,
Nubz

Won't sleep, yet won't wake.

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