My imac HD will not sleep

Hi,
I have an IMac and I can not get HD to go to sleep, I thought that I have tried all settings, but it does not help! Is there anyone who can help me.

I would first reset the SMC:
Shut down and unplug the Mac.
Keep the Mac unplugged for at least fifteen seconds.
Plug the Mac back in and do not turn it back on for at least five seconds.
Press the power button to turn the Mac back on.
Then I would reset the PRAM by rebooting the iMac while simultaneously holding the Command-Option-P-R keys until the machine restarts a second time.
Hope this helps

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Message was edited by: Paul131313

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The preference file (plist) tells OS X what default and/or user preferences to apply to a device or a program. They rarely become corrupt, but if they do they cause all sorts of odd behavior.
After you trash the preference file and restart, OS X will rebuild the missing file with default values. If you have some personal preferences, you would need to enter those.
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Message was edited by: Barry Hemphill

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My computer will sleep fine if I tell it to, but it won't do it automatically. That function is critical to my computer's security.
I confirm that I've told it to sleep after 1 minute, whether on battery or plugged in. If I tell it to dim the screen after a minute, that works fine, but it will not sleep.
Below is the Power Efficiency Diagnostics Report (Forum removed HTML) -- note the errors.
I have unplugged all USB devices. I have stopped the WIndows Media Network Sharing Service. I have disconnected from the network (airplane mode). It still will not sleep.
Please tell me what else to try.
Thanks.
Power Efficiency Diagnostics Report Computer Name HP_ENVY Scan Time 2014-05-16T02:26:12Z Scan Duration 60 seconds System Manufacturer Hewlett-Packard System Product Name HP ENVY TS 17 Notebook PC BIOS Date 03/05/2014 BIOS Version F.53 OS Build 9600 Platform Role PlatformRoleMobile Plugged In true Process Count 103 Thread Count 1174 Report GUID {85eba029-391e-4c52-b630-5313c8f32a3c} Analysis Results Errors
Power Policyisplay timeout disabled (On Battery)
The display is not configured to turn off after a period of inactivity.
Power Policyim timeout is disabled (On Battery)
The display is not configured to automatically dim after a period of inactivity.
Power Policyisplay timeout disabled (Plugged In)
The display is not configured to turn off after a period of inactivity.
Power Policyim timeout is disabled (Plugged In)
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System Availability Requestsystem Required Request
The device or driver has made a request to prevent the system from automatically entering sleep.
Driver Name \FileSystem\srvnet
USB Suspend:USB Device not Entering Selective Suspend
This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.
Device Name HP Wireless Mouse Host Controller ID PCI\VEN_8086&DEV_8C31 Host Controller Location PCI bus 0, device 20, function 0 Device ID USB\VID_03F0&PID_8207 Port Path 2
USB Suspend:USB Device not Entering Selective Suspend
This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping.
Device Name LSI USB 2.0 Soft Modem Host Controller ID PCI\VEN_8086&DEV_8C31 Host Controller Location PCI bus 0, device 20, function 0 Device ID USB\VID_047E&PID_2892 Port Path 1
Platform Power Management CapabilitiesCI Express Active-State Power Management (ASPM) Disabled
PCI Express Active-State Power Management (ASPM) has been disabled due to a known incompatibility with the hardware in this computer.
Al
HP Envy Touchsmart 17
Windows 8.1 Build 9600
This question was solved.
View Solution.

Hi, AQB,
Yes, I solved it. Here are my notes on the issue:
See this web site:
http://mingersoft.com/blog/2011/12/why-wont-windows-automatically-sleep/
Better:
http://helpdeskgeek.com/windows-8/fix-windows-8-1-will-sleep/
From the command prompt:
powercfg -requestsoverride driver \filesystem\srvnet system
or
powercfg /requestsoverride driver srvnet system
or
powercfg /energy /output c:\temp\requests.htm
See this web site:
http://mingersoft.com/blog/2011/12/why-wont-windows-automatically-sleep/
Better:
http://helpdeskgeek.com/windows-8/fix-windows-8-1-will-sleep/
Al
HP Envy Touchsmart 17
Windows 8.1 Build 9600

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Hello Community,
This is my first time using the forum. I have a macbook pro 13" 2009 model. Recently I had my MBP connected to an external monitor. I shut the lid while it was connected to the monitor and forgot to turn off my bluetooth mouse. Later that night the mouse was bumped, waking my macbook and setting it to clamshell mode. I put it to sleep again, opened the lid and woke it, but the LCD on the laptop did not turn on. I reset the PRAM and the NVRAM with no luck. I disconnected the monitor, rested the P/NVRAM and it would boot with the laptop screen and once everything was loaded my screen went black and then went to sleep on its own. I tried powering on and off using the P/NVRAM key commands...and nothing. So I opened the bottom case and physically disconnect the battery, reconnected the battery, put the bottom plate back on and powered it up. The screen began working again, now I have a new problem, the MBP WILL NOT sleep when I shut the lid anymore. I even reinstalled the OS and still no luck? If anyone has anything helpful that I could try to get this feature working again it would be much appreciated. If there is some terminal command I could try or some other troubleshooting method. I even put a magnet by the right side of the keyboard to try to trigger the sleep switch.
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After installing the recent java, daylight savings, and the security update. my computer will not sleep. Does anyone else have this problem? I do have an adaptec usb2 card installed but nothing is plugged into it. Also i don't have any Ipods or external things plugged in. I have had the same setup for the past year with no problems, now it will not sleep. I have also tried repairing the permissions. Please help

When you select Sleep from the Apple Menu nothing happens, is that correct? Try this: Go menu > Home > Library > Preferences. Drag the whole of the Preferences folder to the desktop. Restart your mac, don’t worry if things look different, you have not lost anything. Can the mac sleep now? If yes, then its a damaged or corrupted .plist or preference. If you are using Apple Mail, drag the com.apple.mail.plist back to the new preferences folder created on reboot, you dont really need anything else but keep hold of the old preferences (the one you dragged to your desktop) just in case for a month or two. If everything else is OK you can safely delete it. If it has not cured the problem then remove the new preferences folder created on reboot by taking it to the trash, drag back the preferences folder you moved to the desktop and reboot. Now reinstall a clean OS. See how you go from there

After installing recent java update, computer will not sleep.

After installing the recent java, daylight savings, and the security update. my computer will not sleep. Does anyone else have this problem? I do have an adaptec usb2 card installed but nothing is plugged into it. Also i don't have any Ipods or external things plugged in. I have had the same setup for the past year with no problems, now it will not sleep. I have also tried repairing the permissions. Please help

A number of sleep-related issues can appear after incremental Mac OSX updates, including the inability to properly go to sleep, problems waking from sleep, and having your display go to sleep without your Mac going to sleep. The most common culprit is Bluetooth. Try these tips to fix your sleep problems.
WAKE UP
In System Preferences>Bluetooth, uncheck Allow Bluetooth Devices To Wake This Computer. If you are using a Bluetooth mouse and keyboard, you'll have to wake your Mac by pressing the power button.
FILE CORRUPTION
Your Bluetooth preference file may be corrupt-you'll need to delete it. Turn Bluetooth off, then go to the /Users/user name/Library/Preferences folder. Look for a file called com.apple.Bluetooth.plist and trash it.The OS will create a new preference file when you enable Bluetooth again.
ENERGY SAVER
If you have issues with a Mac or display that goes to sleep at inappropriate times, you may have a problem with Energy Saver. Delete the following .plist files and restart:
-/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
-/Users/username/Library/Preferences/com.apple.systemuiserver.plist--
(username is your name or System Administrators name)
-/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
A restart is very important after deleting these plists. After a reboot your Mac will then generate new ones.
Some, in these forums, have had luck fixing sleep issues downloading the Combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try.
Yours would be the 10.4.8 Combo update. Others reading, download the combo update that applies to you!
Cheers!
DALE

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