Imac sleep problem

the display goes to sleep after a few minutes and sometimes dosnt wake when i move the mouse or keyboard, i know its just the display becasue i can play music using the keyboard... i have to put my mac to sleep (CMDalteject) and then wake it for my display to start again .

Hi rajr110
Reset the SMC > http://support.apple.com/kb/HT3964
+1. Shut down the computer.+
+2. Unplug the computer's power cord.+
+3. Press and hold the power button for 5 seconds.+
+4. Release the power button.+
+5. Attach the computers power cable.+
+6. Press the power button to turn on the computer.+
Restart resetting the PRAM > http://support.apple.com/kb/HT1379
+1. Shut down the computer.+
+2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.+
+3. Turn on the computer.+
+4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.+
+5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.+
+6. Release the keys.+
Dennis

Similar Messages

IMac - sleeping problem

Hi Guys,
i have new model of iMac (Late 2012 with 10.8.3) and i have in my point of view problem with "deep sleep".
1) after about 60 min (pmset -g, timer - autopoweroffdelay14400) away from keyboard iMac sleeps "deep sleep".
2) no possible to wake-up with keyboard or mouse
3) only power buttons work
4) iMac needs two login, first for FileVault and second to the System (why ? on MacBook Air you need only one)
5) all applications starts again (why ? The new start take 1 or 2 minutes :-((( On MacBook Air all applications starts where im finished, no restart, etc. I can working instantly without waiting)
6) no applications (for example iTunes) can't prevent iMac from this type of sleep. If i listen to iTunes (music play, using remote to change albs, etc.) and after about 60 minutes away from the keyboard, iMac sleeps (why ?)
7) in this type od sleep can't use remote desktop from through internet (use AirPort Extreme), no possible iMac to wake up (you need to push power button, why ?)
8) in this type od sleep no application can't iMac wake-up. For example remote from iOS :-(
What i try to fix my problem:
1) in pmset set sleep to 0, iMac now can wake-up with keyboard and mouse
2) restart SMC and PRAM https://discussions.apple.com/docs/DOC-3603
3) repair disk permissions http://support.apple.com/kb/ht1452
4) delete sleep file http://www.maclife.com/article/howtos/how_remove_diskhogging_sleepimage_file_you r_mac (BTW: my sleep file have only 2G and i have 16G RAM)
5) in pmset set autopoweroff to 0
6) in pmset set hibernatemode to all modes
7) in pmset set sleep to 0 (i try to sleep to never, but iMac sleeps again)
8) in pmset set setautopoweroffdelay to 0
Nothing helps :-(
Do you have any recommendation ? In next steps i try to erase whole system and install new vanilla and will see :-(((
Thank you guys ! Im so tired :-)))

Have you tried "fsck -fy" repairs under single-user mode?
http://support.apple.com/kb/ht1492
Reboot and hold down the Command (Apple) and S keys before the grey screen appears.
Wait for the command prompt, then type:
sbin/fsck -fy
Repeat that command until "file system was modified" is no longer reported back, type:
reboot
Or try Titanium Software's "Onyx": http://www.titanium.free.fr/downloadonyx.php (not affiliated)
Check your preferences for corruption: Under the "preferences" tab, within the "Verify" tab.
Hope that helps.

Intel iMac sleep problem, need help !

My 17" Intel iMac has sleep problem past few days.
I use the Ctrl+Eject on the keyboard to put my iMac to sleep and it only needs 3 to 5 sec before.
But now I use same method, it got 30 sec. to sleep; same result thru Apple menu>sleep.
Used Onyx & repair permissions, still no change.
Anyone know what's the problem, how to fix it?
Plz help!
Thx!

Danlam,
A simple SMC (System Management Controller) reset is known to resolve a lot of sleep/wake related issues.
Here's how to do the reset:
- From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).
- Unplug all cables from the computer, including the power cord and any display cables.
- Wait at least 15 seconds.
- Plug the power cord back in, making sure the power button is not being pressed at the time.
-Then reconnect your keyboard and mouse to the computer.
- Press the power button on the back to start up your computer.
Follow this link to the Apple Article that describes the SMC and how to reset it in more detail: http://docs.info.apple.com/article.html?artnum=303446
Hope this helps you out.

IMac Sleep Problem Waking - Screen Black and Pixelization

I am having a screen problem "waking" my iMac (2010 model)
After the iMac is in (deep?) sleep mode
(I have it set to enter a password after sleep mode)
Screen is blank/off
I "wiggle" my mouse or trackpad
Screen is still blank (sometimes it may display my screen saver, but the screensaver is frozen)
If I start moving the mouse or trackpad, it starts "un painting" the black screen. You can see whatever is supposed to be on the screen, such as the logon "button".
It is really wierd. Like a black "overlay" is painted on the resume from sleep screen. As I move my mouse or trackpad, it is basically erasing the black, to show what is underneath. Each movement of the mouse, erases a small black square.
I usually move my mouse around the middle of the screen to uncover the logon button. Press the logon button. The screen magically reappears as normal. I enter my password and system logs back on normally.
It only seems to be when the iMac is in (deep?) sleep mode. If the screen is just blank for short time: I move the mouse/trackpad, and the logon screen is immediately displayed normally.
Any thoughts or recommendations?
There is a few other treads on this issue e.g. on the macrumors site, but no solutions.
Thanks to all in advance.
--john--

Hi! When you say "the power light goes off once again" are you talking about the power light on the monitor or the computer? If it's on the computer then it's likely the computer but if it's the monitor it could be the monitor or the video card. You may have to find another monitor to troubleshoot it. Tom

IMac Sleep problems. Mac gets stuck in sleep mode

My iMac has been having Sleep issues for a couple of months now. At First when you put it to sleep, you could hear it was still on. It would take about 15 minutes for it to go to sleep. During this time you could not wake it even by moving the mouse or keyboard. The screen also remained blank.
If you didn’t touch the machine, it would sleep after 15 minutes. If you moved the mouse/keyboard, after 15 minutes it would load to the last position.
Now the problem has worsened. When you put it to sleep the same above happens except it never sleeps. After 15 minutes it wakes itself automatically with the screen remaining blank. Then after 10 minutes or so it will try to go to sleep on its own but you can still hear the machine is on. This process repeats itself continuously. If you try and wake the computer it can take 5 – 10 minutes to come out of the cycle and then it works.
Any ideas?

Hi This is the output.
Mitan-Patels-iMac-239:~ mitanpatel257905$ Assertion status system-wide:
   PreventUserIdleDisplaySleep             0
   CPUBoundAssertion                       0
   DisableInflow                           0
   ChargeInhibit                           0
   PreventSystemSleep                      0
   PreventUserIdleSystemSleep              0
   ExternalMedia                           0
   DisableLowPowerBatteryWarnings          0
   EnableIdleSleep                         1
   NoRealPowerSources_debug                0
   UserIsActive                            0
   ApplePushServiceTask                    0
Kernel Assertions: 0x0012
* Kernel Assertion ID = 500
   Created At = 01/01/1970 01:02:35 GMT+
   Modified At = 03/06/2014 09:20:14 GMT+
   Owner ID = 0xffffff80202a3000
   Level = 255
   Assertions Set = None (4)
* Kernel Assertion ID = 501
   Created At = 01/01/1970 01:02:37 GMT+
   Modified At = 01/01/1970 01:00:00 GMT+
   Owner ID = 0xffffff80202e4000
   Level = 0
   Assertions Set = None (4)
* Kernel Assertion ID = 507
   Created At = -bash: Assertion: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    PreventUserIdleDisplaySleep             0
-bash: PreventUserIdleDisplaySleep: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    CPUBoundAssertion                       0
-bash: CPUBoundAssertion: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    DisableInflow                           0
-bash: DisableInflow: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    ChargeInhibit                           0
-bash: ChargeInhibit: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    PreventSystemSleep                      0
-bash: PreventSystemSleep: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    PreventUserIdleSystemSleep              0
-bash: PreventUserIdleSystemSleep: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    ExternalMedia                           0
-bash: ExternalMedia: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    DisableLowPowerBatteryWarnings          0
-bash: DisableLowPowerBatteryWarnings: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    EnableIdleSleep                         1
-bash: EnableIdleSleep: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    NoRealPowerSources_debug                0
-bash: NoRealPowerSources_debug: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    UserIsActive                            0
-bash: UserIsActive: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    ApplePushServiceTask                    0
-bash: ApplePushServiceTask: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$
Mitan-Patels-iMac-239:~ mitanpatel257905$ Kernel Assertions: 0x0012
-bash: Kernel: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$ * Kernel Assertion ID = 500
-bash: HeM+l%AF%DDpȻِ%CF̓%F4%C8O%DE{%AE2ߤ%D8~%E3%EB%8Cؔ%DA%EF: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Created At = 01/01/1970 01:02:35 GMT+
-bash: Created: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Modified At = 03/06/2014 09:20:14 GMT+
-bash: Modified: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Owner ID = 0xffffff80202a3000
-bash: Owner: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Level = 255
-bash: Level: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Assertions Set = None (4)
-bash: syntax error near unexpected token `('
Mitan-Patels-iMac-239:~ mitanpatel257905$
Mitan-Patels-iMac-239:~ mitanpatel257905$ * Kernel Assertion ID = 501
-bash: HeM+l%AF%DDpȻِ%CF̓%F4%C8O%DE{%AE2ߤ%D8~%E3%EB%8Cؔ%DA%EF: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Created At = 01/01/1970 01:02:37 GMT+
-bash: Created: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Modified At = 01/01/1970 01:00:00 GMT+
-bash: Modified: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Owner ID = 0xffffff80202e4000
-bash: Owner: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Level = 0
-bash: Level: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Assertions Set = None (4)
-bash: syntax error near unexpected token `('
Mitan-Patels-iMac-239:~ mitanpatel257905$
Mitan-Patels-iMac-239:~ mitanpatel257905$ * Kernel Assertion ID = 507
-bash: HeM+l%AF%DDpȻِ%CF̓%F4%C8O%DE{%AE2ߤ%D8~%E3%EB%8Cؔ%DA%EF: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Created At = 03/06/2014 18:40:04 GMT+
-bash: Created: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Modified At = 01/01/1970 01:00:00 GMT+
-bash: Modified: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Owner ID = 0xffffff80249e2a00
-bash: Owner: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Level = 255
-bash: Level: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Assertions Set = None (8)
-bash: syntax error near unexpected token `('
Mitan-Patels-iMac-239:~ mitanpatel257905$
Mitan-Patels-iMac-239:~ mitanpatel257905$ * Kernel Assertion ID = 508
-bash: HeM+l%AF%DDpȻِ%CF̓%F4%C8O%DE{%AE2ߤ%D8~%E3%EB%8Cؔ%DA%EF: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Created At = 04/06/2014 00:00:07 GMT+
-bash: Created: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Modified At = 01/01/1970 01:00:00 GMT+
-bash: Modified: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Owner ID = 0xffffff803813c800
-bash: Owner: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Level = 255
-bash: Level: command not found
Mitan-Patels-iMac-239:~ mitanpatel257905$    Assertions Set = None (8)
-bash: syntax error near unexpected token `('

IMac sleeping problems

After my iMac goes to sleep, it takes ages to wake back up and for the mouse to connect. I know this mode is called Safe Sleep but before I upgraded to Yosemite, I had managed to stop it. I can't remember how now - can anyone help?
Cheers

Hello there, andiefromqld.
The following Knowledge Base article offers up some great information in regards to your Mac having issues with when waking from sleep and offers some practical troubleshooting steps as well:
OS X: When your Mac doesn't sleep or wake - Apple Support
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

Possible reason for the iMac G5 with 10.4.3 Sleep Problems

Ok first off let me say that I got this new iMac G5 20" about 4 days ago. It's wonderful. If anyone out there is holding out for the intel machines, don't wait, get a G5. It's a fantastic machine. Now on to the meat of the subject. The story goes like this; I hooked up my Plextor PVR with eyeTV to my iMac to see how well it would do (been using it with a P4 Windoze XP machine and my iBook G4 14" with no problems). It worked just great. No problems with the iMac, the PVR or any of my other addons (including the boatload of software I migrated over from the iBook). So I set up EyeTV to record some stuff while I was asleep. It's supposed to wake up the Mac, record the shows then the Mac goes back to sleep. Easy huh? Well the wakeup, record part went just fine but the Mac wouldn't go back to sleep. Perplexed (actually thrilled, this is where I have my most fun with new machines, figuring out why they aren't working correctly) I did all the standard "I can't get my Mac to sleep automatically" things. You know, blow away all the plist files that have anything to do with powermanagement and autowake, reset NVRAM from OF, reset the PRAM (3 times just like the old days), reset the SMU, blow away all the Bluetooth plist files, etc, etc. Did them all, don't suggest any, I did them all I swear, really. I've been through this kind of thing before. One big difference with this iMac. Nothing and I mean nothing would work to fix the problem. The only way the bad boy would sleep is by hitting the Power button for a second or selecting "Sleep" from the Apple menu. Hmmmm. Spent the better part of a morning reading every thread here about peoples problems like mine. One post and I mean exactly one had something I hadn't tried. I rebooted the Mac in Safe Mode (hold the shift key down while it boots until you get the login screen with the red text "Safe Mode".) I forgot that OSX even did that. Logged in as myself (normal login but still in safe mode) and low and behold the thing would sleep automatically! I repeated this (boot in normal mode, boot in safe mode) many times. Every single time the Mac would sleep from safe mode but not from normal mode. Tells me it's software not hardware. In each mode I run "Activity Monitor" and save a list of the running processes to a text file. Now compare them and shutdown each process that is different one at a time. To make this story somewhat shorter (heh) I finally found that I could consistantly make the machine sleep or not sleep by killing the "mdimport" process and restarting it. This has to do with Spotlight. To be exact, it's the process that imports Metadata into Spotlights data list (I'm no expert, have a basic understanding of this). So on a hunch I ran the terminal and entered the command to delete then rebuild Spotlights databases, "mdutil -E /". Then I let Spotlight rebuild that databases and rebooted. Guess what? The iMac sleeps perfectly now, go figure. I did this once so far and the Mac has been working correctly now for about 5 hours. I've got a feeling that the problem will come back. Especially if it's an inherent problem in Spotlight and the 10.4.3 upgrade. I don't seem to have this problem with 10.4 or earlier. Long post I know but I thought it could help someone out. Please post any comments. I'd like to know if what I did is coincidence (I really don't think so since I reproduced it many times) or not.
-joe-
iBook G4 1Gig, iMac G5 2.1 Gig, iMac 266 Mac OS X (10.4.3) iMac 266 running 10.3.6, been using Macs since the '80s

Right guy's i to have researched this problem
concerning my auto sleep problem.I started off by
following Joeaux's original post by safe
booting,noting what was running in the activity
monitor,booting normaly and again noting what was
running now.I eliminated the same processes that were
running from both boots, and then started quiting one
by one, the extra processes, from the normal boot, in
activity monitor.Once you quit a process, allow the
computer to try to go to sleep i.e set energy saver
to 1minute and wait to see what happens.I tried the "
mdimport"as of Joeaux but this was not my problem.In
my case the sleep problem was down to two
applications called N67U_ButtonManager and
N124U_ButtonManager.These are for use with my Canon
scanner.I also noted that if i left the scanner
connected to the computer this would also stop it
going to sleep,even after deleting the two
applications.Hope this helps!
Thank you now i know that those login items are for my scanner, and not logic audio i am a little less angry(Logic is now an apple application but the version I run was from the emagic days and i presumed that the button managers were from this app as it was the oldest bit of software running on my machine) By the way any apps that may cause a problem like this are more than likely simply residing in your user login items and can be disabled from there permanently as far as i can see.

IMac wake from sleep problem

I have an Intel imac that I've had for about 9 months. It is on a normal sleep setting and I usually wake it from sleep by moving the mouse.
In the past 3 weeks, though, I have had to wake it up by pressing the space bar. When I do this the computer pauses for a moment and I hear something wind down (I would say it is the hard drive, but the tone of the sound actually goes down rather than up - as if something got stuck on its way to sleeping).
Any ideas about this ? I also had the computer go to sleep yesterday and not wake up (led lights on screen were on, but nothing on the screen). I powered it down and tried to turn it back on, but same result (backlight on, but no boot up). I finally had to pull the power plug and restart the computer with the power button depressed. This seemed to shake up the computer and get it running again.
My sleep problem, though, is still the same. I'm not sure if these issues are related or not, but looking for some feedback on possible issues...
Thanks, Mark

Hi Mark
+The System Management Controller (SMC) is a chip on the logic board that controls all power functions for your computer. If your computer is experiencing any power issue, resetting the SMC may resolve it. The SMC controls several functions, including:+
+* Telling the computer when to turn on, turn off, sleep, wake, idle, and so forth.+
+* Handling system resets from various commands.+
+* Controlling the fans.+
If you are still having any of the above issues reset the SMC as described in the following article!
http://support.apple.com/kb/HT1543
Dennis

Odd iMac sleep issues

I first noticed the issues a couple of weeks ago - mid-2007 iMac, running SL.
The iMac will sleep fine if I use the command in the apple menu or the power button.
But it won't sleep automatically as suggested in the Energy Saving preference pane. If I select the 'sleep' keyboard combination (option, command, eject), the iMac sleeps but instantly wakes again.
I've tried everything! These problems aren't due to peripherals - it was working fine with the same peripherals connected. Wake for LAN isn't selected, nor is the wake for BT option (and I don't have any BT devices). I've looked in Activity Monitor and Console and can't find any obvious process that might be keeing the Mac awake. I've tried restoring plists from a TM backup, deleting plists, resetting the PRAM and SMC. One of these measures (not sure which one) worked ONCE. But when I went into the energy saving preference pane, it stopped sleeping automatically again.
My main concern is the lack of auto-sleep. I've scoured the forums and no one seems to have this problem together with the mac waking instantly after the sleep keyboard combo. I'm hoping this peculiar combination of probems might shed some light on what's causing them.
Any help would be greatly appreciated.

Can be very hard to impossible to track down auto sleep issues. Just get PleaseSleep.
http://www.dragonone.com/products/macosx/pleasesleep/

IMac sleeping automatically more and more frequently with hudge fan noise

A few days when I was watching a DVD my computer started to sleep suddendly.
Of course I desactivated sleeping option in preferences panel and I also tried to reset the nvram without success.
It was getting worse when I tried to play games (on DVD) : every minutes the computer started to sleep (iMac G5 iSight 20")
Now it is not a matter of DVD, my computer often sleeps every 20 seconds even during startup, it is impossible to work. When I restart there are hudge fan noises which are not disappearing after starting.
The only way to work without the imac sleeping every 20 s is to boot under my safe tech tool pro partition.
I tried to repair permissions, reinstall combo update, delete caches with Onyx, ran techtools tests and as I said reset nvram...without result
If I can get some help it would be nice, I am currently backing up all my data in case...

You are dong the right thing by backing up, it sounds as if your power supply is going bad. What did TechTool report?
Have you tried booting from the install disc and verifying/repairing the drive? Try running the Apple Hardware Test as well, but it doesn't always catch things. It does sound like a hardware problem, if none of the suggestions helps, call Apple.

Firmware version explanation + sleep problem

My 10 days old iMac baby has problems to sleep. It goes to sleep but after 5-6 minutes it's awaken again. I tried everything I found relevant to this problem on this discussion board but no help at all. Mac baby was born with 10.4.8 and now it's at 10.4.10 - combo update, everything else is working perfectly well except this sleeping problem. I
After all, I went on Apple download in order to check if there are some EFI Firmware updates and now I'm more than confused with numbers.'
On Apple's site it's clearly written that the most recent firmware version for my iMac is "IM51.0090.B03 (20-inch late 2006)" http://www.apple.com/support/downloads/imacefifirmwareupdate11.html but my System Profiler shows higher number count: "IM51.0090.B08".
From System Profiler:
Hardware Overview:
Model Name: iMac
Model Identifier: iMac5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.16 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache (per processor): 4 MB
Memory: 2 GB
Bus Speed: 667 MHz
Boot ROM Version: IM51.0090.B08
SMC Version: 1.9f4
Does anybody has any idea about this?
Tnx,
Denis
iMac 20'' (Late 2006) Mac OS X (10.4.10) 2 Gb Crucial DDR2 RAM @ 667 MHZ, WD My Book Premium Edition 250 GB

Others have also found what appears to be a discrepancy in the firmware that System Profiler reports installed on their Mac versus the version reported in Apple Knowledge Base documents. The definitive document for me is Mac OS X: Firmware Updates for Intel-based Macs. This doc confirms the information that you report, so the logical explanation to me is that, although the doc was last updated by Apple on 1 MAY 2007, there has been an update to installed firmware in Macs shipping since the doc was last updated.
But the firmware shouldn't have anything to do with whether your Mac sleeps or not. Sleep is one of the things regulated by the System Management Controller. This can be reset.
But there are many other things that can interrupt the Mac auto-sleeping; external FW/USB peripheral devices, wifi, Bluetooth, etc. Have you added any such devices recently.

Imac display problem, the resolution seems to be unusual, top bar and all folders on the desktop background is off the screen

Need help with 21" imac display problem. The resolution seems to be unsual, everything on the desktop background goes off the screen. The resolution is set at 1920 x 1080

Quit the game and restart the iPad.
To quit the game - Go to the home screen first by tapping the home button. Quit/close open apps by double tapping the home button and the task bar will appear with all of you recent/open apps displayed at the bottom. Tap and hold down on any app icon until it begins to wiggle. Tap the minus sign in the upper left corner to close the apps. Restart the iPad. Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.
If that doesn't work try this.
Reset the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons.

IMac sleeps too soon since Mountain Lion

I have a mid 2011 iMac i5 27'' on which I have installed Mountain Lion.
Everything is working great, except for one thing.
I have my Energy Saver set to the default Sleep of 10 mins of non use. Whenever I was downloading anything under Lion it would always stay awake until the download had finished, even if that was 2 or 3 hours. Since changing to Mountain Lion my iMac sleeps exactly as per Energy Saver settings regardless of the fact that there is network/hard drive activity.
It does this whether downloading to the internal hard drive or an external USB drive.
Is there a setting somewhere which needs tweaking? I have tried checking/unchecking "Wake for Network Access", but that doesn't make any difference.
Any ideas?

Hi Stepppy,
I have always used uTorrent on windows for my torrent-downloads. When I got my first Mac 1 month ago, Mac Mini (mid 2011), I was amazed at how Lion handled uTorrent! The Lion slept, while the torrents were downloading. For 2 days I worked like this. When I saw a FREE upgrade possibility for Mountain Lion I did not hesitate and downloaded...... expecting it to be better ofcourse..... I was wrong.
I use the mac solely for downloads and watching movies and shows(hooked up to my Sony LED 46HX820...sweet!).
After some browsing I finally found the caffeinate command to be the best work-around see (h t t p : //apple. stackexchange. com/questions/57951/mountain-lion-sleeps-too-aggressively), that is until the guys at uTorrent update the software, which they promised to do see (h t t p : //forum. utorrent . com / viewtopic . php ? id= 122652)
This is my setup for uTorrent:
My sleep settings for screen and hard disks are set to 1 minute, just because, I don't know, just because!
I open Terminal and use this command everytime I start downloads with uTorrent:
caffeinate -i open -W -a utorrent.app
(for other apps use that app's name instead of utorrent.app)
This should keep the system awake as long as uTorrent is running and not idle. To prevent any sleep at all, use -s instead of -i.
And I always set my uTorrent to Sleep After Downloads Complete.
I hope this helps you and some others.
Ofcourse, this is not what we want eventually, but I don't find it necessary to go back to Lion for this problem and I just hope the app will get an update!
Good luck

15" AL PB G4 Sleep Problems

Another in the long list of sleep problems. Running the latest & greatest Tiger and all that. I have read and read and READ! the discussions and followed most of the advise to no avail. Here's what's up.
When I try to put the PB to sleep, either by closing the lid or through apple menu, everything starts out ok. Screen goes dark, LED comes on, Great! At the moment when the LED becomes brightest, the Superdrive makes a noise like it is cycling, and the PB wakes up. If I leave the lid closed it continues this indefinitely. If the lid is up, it wakes and the srceen flashes from desktop to black a couple of times the seems ok.
When I open the lid after experiencing this behavior I can hear the machine wake, but screen stays black. Must turn off by holding down power button, then start up again and all is fine.
Any one else experiencing this drive cycling?
Thanx,
Chris
San Clemente

Another in the long list of sleep problems. Running the latest & greatest Tiger and all that. I have read and read and READ! the discussions and followed most of the advise to no avail. Here's what's up.
When I try to put the PB to sleep, either by closing the lid or through apple menu, everything starts out ok. Screen goes dark, LED comes on, Great! At the moment when the LED becomes brightest, the Superdrive makes a noise like it is cycling, and the PB wakes up. If I leave the lid closed it continues this indefinitely. If the lid is up, it wakes and the srceen flashes from desktop to black a couple of times the seems ok.
When I open the lid after experiencing this behavior I can hear the machine wake, but screen stays black. Must turn off by holding down power button, then start up again and all is fine.
Any one else experiencing this drive cycling?
Thanx,
Chris
San Clemente

Unresponsive Keyboard and Trackpad problem AT STARTUP + Sleep problem

When I turn on my computer it boots the OS and everything works except for the trackpad and the keyboard. I wait for about 5-7 minutes and then the trackpad and the keyboard start working.
Additional problems:
If I try to sleep my computer, the screen turns off, but the computer never stops working, so I have to force it to shut down.
Temporal Solutions
1) Boot in safe mode, it solves the trackpad/keyboard problems but not the Sleeping problem
Attempted fixes
1) Conencted external keyboard mouse/keyboard. Doesn't work
2) Reset the battery controller.
3) Reinstalled 10.6
4) Installed 10.5
5) Installed 10.6.3
Known Stuff:
1) The trackpad/keyboard are always connected as I can move the mouse and use some gestures with the Better Touch Tool app, and the keyboard works because if I click the Caps Lock key, the small led turns on.
2) Also, I have the HardwareGrowler app which tells me if hardware gets connected or disconnected and it never tells me anything about the trackpad/keyboard getting disconnected.
3) The OS is working at startup because apps show stuff and get updated and I can still get growl notifications.
NOTE: This is an intermittent problem, about 1 out of 10 times I turn on the computer I GET the problem.
Thanks a lot!

I came across a similar issue as the original poster. My trackpad and keyboard are unresponsive for 5 - 7 minutes after startup. I've updated my OS to 10.6.4 twice and it's still happening. I recognized this behavior after the Preferences->Network pane froze while I was trying to remove a VPN setting. Removing /Library/Preferences/SystemConfigurations did not help the problem.
Do any of you have advice on debugging the issue?
windowserver.log
Aug 27 13:35:00 [58] Display 0x4271580: MappedDisplay Unit 0; ColorProfile "Color LCD" (MD5 de058e87398afe70975928a7b248fe42)
Aug 27 13:42:58 [58] CGXRunOneEventPass: timed out after 175 events with wait time of 0.010000
Aug 27 13:42:58 [58] kCGErrorIllegalArgument: CGXSetWindowListTags: Operation on a window 0x6 not owned by caller Dropbox
system.log
Aug 27 13:42:58 localhost WindowServer[58]: Timeout waiting for IOKit to be quiet

Imac sleep problem

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