Windows 8.1 won't go to sleep

This started about a week, maybe 2, ago. I can't get the computer to go to sleep and I have no idea why. If I manually select sleep from the power menu it works the way I want, but after hours of inactivity it will never fall asleep.
I did a full re-install of Windows 8.1 pro, all drivers are up to date ( and no errors / warnings in Device Manager ). I have made it so only the mouse and keyboard can wake up the computer or keep it awake, below is the output of
λ powercfg devicequery wake_armedHID Keyboard Device
HID-compliant mouse
Any good tools to better diagnose what is stopping windows from putting the computer to sleep?

Hi,
Please run
powercfg -requests
and see the output, the Request switch lists application and driver power requests. These requests prevent the computer from powering of the display or entering sleep. Then we can change related settings according to the output.
More information
Sleep failures can be caused by any of the following:
Software running that configures Windows not to sleep, such as DVD playback software.
Drivers can also make a request to prevent sleep.
Some Windows maintenance software performing a task, such as the disk defragmenter, may request that Windows not sleep.
You may also see driver, device or software problems that unexpectedly result in error messages while trying to sleep.
You might also be intreasted in this link
http://support.microsoft.com/kb/941145
Yolanda Zhu
TechNet Community Support

Similar Messages

My computer won't shutdown and sleep

I'm using Windows 8.1 Pro x64 and my computer won't shutdown and sleep. When i try to shutdown pc, everything shutsdown (hdd etc.) but only fans and led's stay on. I have to press power button to shut it down. Even i try to sleep the pc everything shutsdown
but fans and stuff is still on i have to press power button to completely turn it off. I tried to write powercfg -energy code to command prompt and i got 8 errors and 7 warnings. How to solve that problem?
This is what i got:
Power Efficiency Diagnostics Report
Computer Name
DARKORION11
Scan Time
2014-08-13T14:06:49Z
Scan Duration
60 seconds
System Manufacturer
System manufacturer
System Product Name
System Product Name
BIOS Date
03/18/2014
BIOS Version
0805
OS Build
9600
Platform Role
PlatformRoleDesktop
Plugged In
true
Process Count
67
Thread Count
971
Report GUID
{ca7e44e7-3f05-4462-9ce9-72cb0493f6df}
Analysis Results
Errors
System Availability Requests:System Required Request
The program has made a request to prevent the system from automatically entering sleep.
Requesting Process
\Device\HarddiskVolume1\Program Files\Windows Media Player\wmpnetwk.exe
System Availability Requests:System 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
USB Composite Device
Host Controller ID
PCI\VEN_8086&DEV_1E26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_09DA&PID_90C0
Port Path
1,5
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
USB Root Hub
Host Controller ID
PCI\VEN_8086&DEV_1E26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_8086&PID_1E26
Port Path
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
Generic USB Hub
Host Controller ID
PCI\VEN_8086&DEV_1E26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_8087&PID_0024
Port Path
1
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
USB Composite Device
Host Controller ID
PCI\VEN_8086&DEV_1E26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_09DA&PID_9090
Port Path
1,6
CPU Utilization:Processor utilization is high
The average processor utilization during the trace was high. The system will consume less power when the average processor utilization is very low. Review processor utilization for individual processes to determine which applications and services contribute
the most to total processor utilization.
Average Utilization (%)
6.38
Platform Power Management Capabilities:PCI 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.
Warnings
Platform Timer Resolution:Platform Timer Resolution
The default platform timer resolution is 15.6ms (15625000ns) and should be used whenever the system is idle. If the timer resolution is increased, processor power management technologies may not be effective. The timer resolution may be increased due to
multimedia playback or graphical animations.
Current Timer Resolution (100ns units)
10005
Maximum Timer Period (100ns units)
156250
Platform Timer Resolution:Outstanding Timer Request
A program or service has requested a timer resolution smaller than the platform maximum timer resolution.
Requested Period
10000
Requesting Process ID
4120
Requesting Process Path
\Device\HarddiskVolume1\Windows\System32\audiodg.exe
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
2428
Average Utilization (%)
1.21
Module
Average Module Utilization (%)
\Program Files (x86)\Google\Chrome\Application\36.0.1985.125\chrome_child.dll
0.96
\SystemRoot\system32\ntoskrnl.exe
0.10
0.03
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
3096
Average Utilization (%)
1.14
Module
Average Module Utilization (%)
\Device\HarddiskVolume1\Program Files (x86)\Google\Chrome\Application\36.0.1985.125\chrome.dll
0.61
\SystemRoot\system32\ntoskrnl.exe
0.20
\SystemRoot\System32\win32k.sys
0.09
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
2956
Average Utilization (%)
0.61
Module
Average Module Utilization (%)
\Device\HarddiskVolume1\Program Files (x86)\Google\Chrome\Application\36.0.1985.125\libglesv2.dll
0.12
\Device\HarddiskVolume1\Windows\SysWOW64\atidxx32.dll
0.12
\Device\HarddiskVolume1\Program Files (x86)\Google\Chrome\Application\36.0.1985.125\chrome_child.dll
0.10
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
4512
Average Utilization (%)
0.45
Module
Average Module Utilization (%)
\Program Files (x86)\Google\Chrome\Application\36.0.1985.125\chrome_child.dll
0.36
\SystemRoot\system32\ntoskrnl.exe
0.04
\SystemRoot\SysWOW64\ntdll.dll
0.01
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
dwm.exe
PID
880
Average Utilization (%)
0.21
Module
Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe
0.04
\Device\HarddiskVolume1\Windows\System32\dwmcore.dll
0.04
\Device\HarddiskVolume1\Windows\System32\atidxx64.dll
0.03
Information
Platform Timer Resolution:Timer Request Stack
The stack of modules responsible for the lowest platform timer setting in this process.
Requested Period
10000
Requesting Process ID
4120
Requesting Process Path
\Device\HarddiskVolume1\Windows\System32\audiodg.exe
Calling Module Stack
\Device\HarddiskVolume1\Windows\System32\ntdll.dll
\Device\HarddiskVolume1\Windows\System32\AudioEng.dll
\Device\HarddiskVolume1\Windows\System32\audiodg.exe
\Device\HarddiskVolume1\Windows\System32\rpcrt4.dll
\Device\HarddiskVolume1\Windows\System32\combase.dll
\Device\HarddiskVolume1\Windows\System32\rpcrt4.dll
\Device\HarddiskVolume1\Windows\System32\ntdll.dll
\Device\HarddiskVolume1\Windows\System32\kernel32.dll
\Device\HarddiskVolume1\Windows\System32\ntdll.dll
Power Policy:Active Power Plan
The current power plan in use
Plan Name
OEM Balanced
Plan GUID
{381b4222-f694-41f0-9685-ff5bb260df2e}
Power Policy:Power Plan Personality (Plugged In)
The personality of the current power plan when the system is plugged in.
Personality
Balanced
Power Policy:802.11 Radio Power Policy is Maximum Performance (Plugged In)
The current power policy for 802.11-compatible wireless network adapters is not configured to use low-power modes.
Power Policy:Video quality (Plugged In)
Enables Windows Media Player to optimize for quality or power savings when playing video.
Quality Mode
Optimize for Video Quality
Battery:Analysis Success
Analysis was successful. No energy efficiency problems were found. No information was returned.
Platform Power Management Capabilities:Supported Sleep States
Sleep states allow the computer to enter low-power modes after a period of inactivity. The S3 sleep state is the default sleep state for Windows platforms. The S3 sleep state consumes only enough power to preserve memory contents and allow the computer
to resume working quickly. Very few platforms support the S1 or S2 Sleep states.
S1 Sleep Supported
false
S2 Sleep Supported
false
S3 Sleep Supported
true
S4 Sleep Supported
true
Platform Power Management Capabilities:Connected Standby Support
Connected standby allows the computer to enter a low-power mode in which it is always on and connected. If supported, connected standby is used instead of system sleep states.
Connected Standby Supported
false
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
0
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
3301
Maximum Performance Percentage
100
Lowest Performance Percentage
48
Lowest Throttle Percentage
48
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
1
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
3301
Maximum Performance Percentage
100
Lowest Performance Percentage
48
Lowest Throttle Percentage
48
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
2
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
3301
Maximum Performance Percentage
100
Lowest Performance Percentage
48
Lowest Throttle Percentage
48
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
3
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
3301
Maximum Performance Percentage
100
Lowest Performance Percentage
48
Lowest Throttle Percentage
48
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Device Drivers:Analysis Success
Analysis was successful. No energy efficiency problems were found. No information was returned.

I've just updated my LAN driver and tested again. This is what i got:
Power Efficiency Diagnostics Report
Computer Name
DARKORION11
Scan Time
2014-08-14T09:48:32Z
Scan Duration
60 seconds
System Manufacturer
System manufacturer
System Product Name
System Product Name
BIOS Date
03/18/2014
BIOS Version
0805
OS Build
9600
Platform Role
PlatformRoleDesktop
Plugged In
true
Process Count
77
Thread Count
1286
Report GUID
{25c91f45-b37e-445f-89b7-e2425a6c60f9}
Analysis Results
Errors
Power Policy:Disk idle is disabled (Plugged In)
The disk is not configured to turn off after a period of disk inactivity.
System Availability Requests:System Required Request
The device or driver has made a request to prevent the system from automatically entering sleep.
Requesting Driver Instance
ROOT\MEDIA\0000
Requesting Driver Device
DFX Audio Enhancer 11.1
System Availability Requests:System Required Request
The device or driver has made a request to prevent the system from automatically entering sleep.
Requesting Driver Instance
HDAUDIO\FUNC_01&VEN_10EC&DEV_0887&SUBSYS_10438445&REV_1003\4&3ad857fa&0&0001
Requesting Driver Device
Realtek High Definition Audio
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
USB Root Hub
Host Controller ID
PCI\VEN_8086&DEV_1E26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_8086&PID_1E26
Port Path
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
Generic USB Hub
Host Controller ID
PCI\VEN_8086&DEV_1E26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_8087&PID_0024
Port Path
1
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
USB Composite Device
Host Controller ID
PCI\VEN_8086&DEV_1E26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_09DA&PID_90C0
Port Path
1,5
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
USB Composite Device
Host Controller ID
PCI\VEN_8086&DEV_1E26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_09DA&PID_9090
Port Path
1,6
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
Xbox 360 Controller for Windows
Host Controller ID
PCI\VEN_8086&DEV_1E26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_046D&PID_C21F
Port Path
1,7
CPU Utilization:Processor utilization is high
The average processor utilization during the trace was high. The system will consume less power when the average processor utilization is very low. Review processor utilization for individual processes to determine which applications and services contribute
the most to total processor utilization.
Average Utilization (%)
8.94
Platform Power Management Capabilities:PCI 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.
Warnings
Platform Timer Resolution:Platform Timer Resolution
The default platform timer resolution is 15.6ms (15625000ns) and should be used whenever the system is idle. If the timer resolution is increased, processor power management technologies may not be effective. The timer resolution may be increased due to
multimedia playback or graphical animations.
Current Timer Resolution (100ns units)
10005
Maximum Timer Period (100ns units)
156250
Platform Timer Resolution:Outstanding Timer Request
A program or service has requested a timer resolution smaller than the platform maximum timer resolution.
Requested Period
10000
Requesting Process ID
5024
Requesting Process Path
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\chrome.exe
Platform Timer Resolution:Outstanding Timer Request
A program or service has requested a timer resolution smaller than the platform maximum timer resolution.
Requested Period
10000
Requesting Process ID
1120
Requesting Process Path
\Device\HarddiskVolume4\Windows\System32\audiodg.exe
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
4868
Average Utilization (%)
2.39
Module
Average Module Utilization (%)
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\36.0.1985.143\chrome_child.dll
1.97
0.19
\SystemRoot\system32\ntoskrnl.exe
0.11
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
348
Average Utilization (%)
1.07
Module
Average Module Utilization (%)
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\36.0.1985.143\chrome.dll
0.64
\SystemRoot\system32\ntoskrnl.exe
0.17
\SystemRoot\System32\win32k.sys
0.07
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
DFX.exe
PID
1988
Average Utilization (%)
1.02
Module
Average Module Utilization (%)
\Device\HarddiskVolume4\Program Files (x86)\DFX\DFX.exe
0.75
\SystemRoot\system32\ntoskrnl.exe
0.15
\Device\HarddiskVolume4\Windows\SysWOW64\AudioSes.dll
0.02
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
4284
Average Utilization (%)
0.54
Module
Average Module Utilization (%)
0.35
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\36.0.1985.143\chrome_child.dll
0.17
\SystemRoot\system32\ntoskrnl.exe
0.01
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
audiodg.exe
PID
1120
Average Utilization (%)
0.43
Module
Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe
0.13
\Device\HarddiskVolume4\Windows\System32\RltkAPO64.dll
0.09
\Device\HarddiskVolume4\Windows\System32\AudioEng.dll
0.09
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
WWAHost.exe
PID
4840
Average Utilization (%)
0.39
Module
Average Module Utilization (%)
\Device\HarddiskVolume4\Windows\System32\MP3DMOD.DLL
0.20
\Device\HarddiskVolume4\Windows\System32\RESAMPLEDMO.DLL
0.12
\SystemRoot\system32\ntoskrnl.exe
0.00
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
1944
Average Utilization (%)
0.33
Module
Average Module Utilization (%)
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\36.0.1985.143\libglesv2.dll
0.07
\SystemRoot\system32\ntoskrnl.exe
0.06
\Device\HarddiskVolume4\Windows\SysWOW64\atidxx32.dll
0.06
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
explorer.exe
PID
2972
Average Utilization (%)
0.25
Module
Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe
0.08
\SystemRoot\System32\win32k.sys
0.05
\Device\HarddiskVolume4\Windows\System32\WindowsCodecs.dll
0.04
Information
Platform Timer Resolution:Timer Request Stack
The stack of modules responsible for the lowest platform timer setting in this process.
Requested Period
10000
Requesting Process ID
5024
Requesting Process Path
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\chrome.exe
Calling Module Stack
\Device\HarddiskVolume4\Windows\SysWOW64\ntdll.dll
\Device\HarddiskVolume4\Windows\SysWOW64\kernel32.dll
\Device\HarddiskVolume4\Program Files (x86)\Google\Chrome\Application\36.0.1985.143\chrome_child.dll
\Device\HarddiskVolume4\Windows\SysWOW64\kernel32.dll
\Device\HarddiskVolume4\Windows\SysWOW64\ntdll.dll
Platform Timer Resolution:Timer Request Stack
The stack of modules responsible for the lowest platform timer setting in this process.
Requested Period
10000
Requesting Process ID
1120
Requesting Process Path
\Device\HarddiskVolume4\Windows\System32\audiodg.exe
Calling Module Stack
\Device\HarddiskVolume4\Windows\System32\ntdll.dll
\Device\HarddiskVolume4\Windows\System32\AudioEng.dll
\Device\HarddiskVolume4\Windows\System32\audiodg.exe
\Device\HarddiskVolume4\Windows\System32\rpcrt4.dll
\Device\HarddiskVolume4\Windows\System32\combase.dll
\Device\HarddiskVolume4\Windows\System32\rpcrt4.dll
\Device\HarddiskVolume4\Windows\System32\ntdll.dll
\Device\HarddiskVolume4\Windows\System32\kernel32.dll
\Device\HarddiskVolume4\Windows\System32\ntdll.dll
Power Policy:Active Power Plan
The current power plan in use
Plan Name
OEM Balanced
Plan GUID
{381b4222-f694-41f0-9685-ff5bb260df2e}
Power Policy:Power Plan Personality (Plugged In)
The personality of the current power plan when the system is plugged in.
Personality
Balanced
Power Policy:802.11 Radio Power Policy is Maximum Performance (Plugged In)
The current power policy for 802.11-compatible wireless network adapters is not configured to use low-power modes.
Power Policy:Video quality (Plugged In)
Enables Windows Media Player to optimize for quality or power savings when playing video.
Quality Mode
Optimize for Video Quality
Battery:Analysis Success
Analysis was successful. No energy efficiency problems were found. No information was returned.
Platform Power Management Capabilities:Supported Sleep States
Sleep states allow the computer to enter low-power modes after a period of inactivity. The S3 sleep state is the default sleep state for Windows platforms. The S3 sleep state consumes only enough power to preserve memory contents and allow the computer
to resume working quickly. Very few platforms support the S1 or S2 Sleep states.
S1 Sleep Supported
false
S2 Sleep Supported
false
S3 Sleep Supported
true
S4 Sleep Supported
true
Platform Power Management Capabilities:Connected Standby Support
Connected standby allows the computer to enter a low-power mode in which it is always on and connected. If supported, connected standby is used instead of system sleep states.
Connected Standby Supported
false
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
0
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
3301
Maximum Performance Percentage
100
Lowest Performance Percentage
48
Lowest Throttle Percentage
48
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
1
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
3301
Maximum Performance Percentage
100
Lowest Performance Percentage
48
Lowest Throttle Percentage
48
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
2
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
3301
Maximum Performance Percentage
100
Lowest Performance Percentage
48
Lowest Throttle Percentage
48
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
3
Idle State Count
3
Idle State Type
ACPI Idle (C) States
Nominal Frequency (MHz)
3301
Maximum Performance Percentage
100
Lowest Performance Percentage
48
Lowest Throttle Percentage
48
Performance Controls Type
ACPI Performance (P) / Throttle (T) States
Device Drivers:Analysis Success
Analysis was successful. No energy efficiency problems were found. No information was returned.

HT2490 My MacBook pro won't go to sleep

My MacBook Pro simply won't go to sleep on it's own. I can manually put it to sleep. I have restarted it and didn't work, I turned it off and removed the battery and still didn't work. I have no external device connecting to my MacBook pro. No blue tooth either. Any suggestions? Thanks. . Kia

Test after each of the following steps that you haven’t already tried:
Step 1
 ▹ System Preferences ▹ Print & Scan ▹ Open Print Queue...
Check all printers for unfinished jobs. Deal with any you find.
Step 2
 ▹ System Preferences ▹ Energy Saver ▹ Power Adapter ▹ Wake for network access: uncheck. You may need to unlock the preference pane by clicking the lock icon in the lower left corner and entering your administrator password.
Step 3
 ▹ System Preferences ▹ Energy Saver ▹ Schedule… ▹ Start up or wake: uncheck
Step 4
Disconnect all wired peripherals except keyboard, mouse or trackball, and monitor, if applicable.
Step 5
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Activity Monitor in the page that opens.
Select All Processes from the menu in the toolbar of the Activity Monitor window, if not already selected. Enter “powerd” (without the quotes) in the "Filter" text field. Select the powerd process and click the Quit Process button in the toobar (stop-sign icon.) In the sheet that opens, click Force Quit. You’ll be prompted for your administrator password. The process will be relaunched immediately.
Step 6
Boot in safe mode and log in. The instructions provided by Apple are as follows:
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
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.
Note: If FileVault is enabled under Mac OS X 10.7 or later, or if a firmware password is set, you can’t boot in safe mode.
Safe mode is much slower to boot and run than normal. Don’t launch any applications at first. If sleep still doesn’t work properly, back up all data and reinstall the Mac OS. After that, if you still have the issue, make a “Genius” appointment at an Apple Store to have the machine tested.
If sleep now works as expected, go on to the next step.
Step 7
Still in safe mode, launch the usual set of applications that are running when you have the problem, including your login items, one at a time, testing after each one. Some applications may not work; skip them. You might be able to identify the cause of the problem this way.
Step 8
If sleep is still working after you’ve launched all the usual applications, reboot as usual (not in safe mode) and test again. If sleep still works, you’re done, at least for the moment.
If you still have the sleep issue after booting out of safe mode, post again.

Mac Mini Server won't go to sleep!

Like a naughty child, my Mac Mini server (i7 2Ghz, OS X 10.7.3) won't go to sleep. I use it as a personal computer, not a server, and I like to put it to sleep at night. But about 20 seconds after going to sleep, it wakes up again.
I've shut off all the server functions I can think of, and it's still waking up. Is there any way to determine WHAT is waking it up when I put it to sleep?
Thanks.
David

Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Terminal in the page that opens.
Drag or copy — do not type — the following line into the Terminal window, then press return:
syslog -k Sender kernel -k Message Req Wake
Post any lines of output that appear below what you entered — the text, please, not a screenshot.
Important: The name of your computer will appear in the output. If that information is private (for example, if the computer name contains your own name), edit it out by search-and-replace in a text editor before posting.

Compter won't wake from sleep mode

My Pavilion 17 notebook computer, purchased in Oct. '13, won't wake from sleep mode; I must shut down and reboot each time. I know this is not due to Windows 8, as I have another Win 8 computer that works normally.

I've done some more experimentation and found a workaround. I had Sleep and the Screensaver both set to Never, and by activating the Screensaver the wake up issue has gone away. This doesn't change the fact that there is an issue with my ATV sleeping when it shouldn't and failing to wake up, but having the screensaver active stops it sleeping in the first place I guess.
It's slightly annoying because I like to have music playing with the description and album art running, and this disappears when the screensaver comes on, but it is better than unplugging the thing every time I use it. Hopefully this will be fixed in the next update, because it only appeared in the last one.

23" momitor won't wake after sleep after installing Radeon AGP 128 dual dvi

hello,
My monitor won't wake after sleep mode. This is new after installing the radeon 128mb dual dvi card. I assumed it should be "ready to go" because I bought it at Tekserve, which sells and fixes Macs.
And if I have my 17" acer display connected the desktop, upon wake-up, partially swithches to the 17" -minus the tool bar. And without the tool bar I cannot access the OS or preferences. I have to restart.
Is there a driver to solve this dilemma? I can keep the computer on without sleep and turn off the monitors but that seems to be a poor solution.
G5 dual processor circa 2005 Mac OS X (10.4.11) 6.5 gigs of ram

How much free space on the startup disk?
Right or control click the MacintoshHD icon. Click Get Info. In the Get Info window you will see Capacity and Available. Make sure you have a minimum of 15% free disk space.
Check for Login Items
Open System Preferences/Accounts then select the Login Items tab. Delete any files or apps you have listed there.
And go to /Library/Startup Items. Move any files in the Startup Items folder to the Trash
If there's enough disk space and login items aren't an issue, launch Disk Utility. The startup disk may need repairing.
Select MacintoshHD in the panel on the left then select the First Aid tab.
Select: Verify Disk (not Verify Disk Permissions).
If the disk needs repairing >
Using Disk Utility to verify or repair disks

My macbook pro won't go to sleep when I close the lid

I've been having this problem for a couple of years now, and it's getting pretty annoying.
I got this MacBook Pro in April of 2011. Otherwise, it works great. It goes to sleep when I go up to the apple menu and select "sleep." BUT, when I close the lid, it stays on. Heaven forbid I don't have it plugged in, because then the battery will be shot! It also won't go to sleep automatically when I leave it for a long time. Yet another potential battery drain.
How do I fix it so that it goes to sleep automatically when I close the lid and when I leave it alone for a while?
In Energy Saver, I have checked all the boxes necessary: "Put the hard disk(s) to sleep when possible" "Wake for network access" and "Automatically reduce brightness before display goes to sleep."
Am I missing something here, or does my computer just have a defect?

I had the same issue.
I used an external monitor but all of a sudden when I closed the lid my Macbook Pro did not go to sleep!
I solved the problem with a SMC reset.
Try to do it...

Windows 8.1 does not go to sleep reliably anymore

I recently did a clean install of Windows 8.1 Pro x64 (final version). Before doing the clean install, all hardware being identical, my Windows 8 was ran smoothly and went to sleep fine automatically after the set time.
Now, after the clean install, although I believe I have installed and set up everything as before, the computer does not reach standby automatically anymore most of the time. To be precise, when I reboot or log off and on the PC, the sleep functionality
is re-established for a while, but after 1 or 2 hours of work it invariably gets lost.
However, as soon as I disable the Ethernet adapter, the PC sleeps as expected.
I do not seem to be able to figure out why this is, or how my configuration is different than before.
Here are a few specs about my hardware: ASRock Z77E-ITX mainboard (http://www.asrock.com/mb/Intel/Z77E-ITX/, has the Windows 8.1 compatibility sticker), Intel Core i7-3770, 4x 3.40GHz including Intel HD 4000 integrated graphics (no external graphics installed),
Intel 530 Series SSD, Intel 520 Series SSD, WD HDD. I have use a wired Ethernet connection, my Ethernet chip is from Broadcom. Wifi chip is disabled.
Since this has been a pervasive issue with all Windows versions, the internet is full of suggestions how to resolve this matter. Why I am not convinced that the old advice still has any bearing as I tend to think Windows 8.1 introduced new issues (bugs?),
for the sake of covering all bases, I tried almost every tip I could find on the net and will list my fruitless attempts in the following. It might also be useful as reference for other people trying to tackle such issues.
1) Installed latest Windows 8.1 drivers from Asrock's homepage. I also tried chip manufacturer's like Intel's own drivers, did not make any difference (so far).
2) Left the homegroup and disabled homegroup functionality as for example in these threads it has been argued that this is a new issue with Windows 8.1: http://www.eightforums.com/general-support/28226-windows-8-1-refuses-sleep-2.html
http://www.eightforums.com/general-support/33221-windows-8-1-does-not-go-sleep-standby-automatically.html
3) In the Ethernet adapter's settings, I unchecked ipv6. I also made sure the device cannot be awaken through the network.
4) I even went so far to disable network discovery as
file and printer sharing (both in private and public profiles) and disable
public folders.
5) Even though sharing is disabled, I also made sure that within the energy options the computer is
allowed to sleep when sharing media.
6) powercfg /requests returns "none".
7) ran powercfg /energy duration 300 from an elevated command prompt while the ethernet adapter was enabled. It found 9 errors, mostly related to USB hubs, but the same errors were also recorded when I repeated the exercise having the ethernet
adapter disabled. So these errors are probably not relevant for the problem at hand.
8) powercfg /devicequery wake_armed : just the mouse and keyboard appear
9) I tried netstat which shows many connections but do not know how to interpret them or what to look for. Same for
Wireshark. If anybody can guide me on how to use these tools, I am happy to learn about it.
10) powercfg -requestsoverride DRIVER \FileSystem\srvnet SYSTEM
did not help, reverted it.
11) Uninstalled software some would find suspicious: Cisco Anyconnect VPN Client, Shadowprotect Desktop backup software, VMware player. Did not help.
12) I also have a MySQL server installed, which I did NOT uninstall because it would be too much point reinstalling and reconfiguring it. However, I doubt this is the culprit as with Windows 8 it did not prevent any sleep. Even when I stop the server the
PC does not go to sleep.
This is more or less it. I am out of ideas and welcome any feedback.
Again, when the Ethernet adapter is disabled, the PC sleeps as programmed, but I cannot figure out what communication is responsible for keeping it awake.
Thanks,
Steve

Hi Steve,
I don't know if you'll feel better but - You are not alone facing the same problems, I am sure that all the power handling in 8.1 is a mess. If I force the comp. to go to sleep mode, after a while it is
not staying in the sleep mode but shutting down autonomously. I suppose there is more hidden bugs.
Tazlam
Isn't your computer just switching from sleep mode to hibernation mode after the amount of time set in your power management settings? This sounds like it, as in hibernation the computer is effectively shut off. This is also intended behaviour.
As you guys, I hope MS releases a fix soon.

Windows 8.1 won't install on partition

Hi,
I have a late 2012 mac mini and trying to install Windows 8.1 through Boot Camp, using a USB drive.
When I get to the point of choosing the partition to install the Windows in, the only formattable partition (the Windows dedicated one) won't let me install.
When I click the details, a message stating that the partition is MBR and windows needs a GPT partition and thus cannot be installed.
However, checking with Disk Utility the disk appears as GPT.
What am I missing here and what's the solution for my problem?
I'm kind of frustrated and need that windows to run some work applications.
Thanks!

I have another external hard disk connected via USB.
Can it be the issue?
I did choose EFI during boot because if I let it run alone and choose "Windows" I only get a DOS looking message that tells me to put a bootable media and press any key, but it doesn't respond to anything, forcing me to hard shut down the computer pressing long time the power button.
The results:
gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 1953525167
       start        size index contents
           0           1         MBR
           1           1         Pri GPT header
           2          32         Pri GPT table
          34           6
          40      409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
      409640 1053408448      2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
1053818088     1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
1055087624        1016
1055088640   898435072      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1953523712        1423
1953525135          32         Sec GPT table
1953525167           1         Sec GPT header
Disk: /dev/disk0 geometry: 121601/255/63 [1953525168 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE 1023 254 63 - 1023 254 63 [         1 -     409639] <Unknown ID>
2: AF 1023 254 63 - 1023 254 63 [    409640 - 1053408448] HFS+
3: AB 1023 254 63 - 1023 254 63 [1053818088 -    1269536] Darwin Boot
4: 07 1023 254 63 - 1023 254 63 [1055088640 - 898435072] HPFS/QNX/AUX

Why WINDOWS 8.1 won't install/load on PC where WIN 8 runs Fine ?

Why WINDOWS 8.1 won't install/load on PC where WIN 8 runs Fine ?
As far as System Requirements go, they are the same for WIN 8 and WIN 8.1
Sympton:
Windows 8.1 Installation DVD loads for some time, no circle of dots, then PC reboots
with quick flash of six lines or so of white text (on black backgound) @ 106 seconds
Needed to use Smart Phone video camera to capture
Your PC needs to restart.
Please hold down the power button ...
Error Code:0x000000C4
Parameters:
0x000...91
0x000... F
0xFFFFF800699C5A80
0x00000000000000000
0x00000000000000001
Presumably message is intended for frozen PC, hence 'hold down power button'
In this case it flashes and re-boots
Windows 8.1 Image loads quickly, flash and reboots PC, having corrupted boot entry
(thankfully not other entries in Boot Manager situated on Dell System Reserved Partition)
PC Desktops affected:
Dimension 5000 - shipped JAN'05
RAM 4GB
Intel Pentium 4 640 3.20Ghz 64bit NX enabled
ATI Radeon HD 6450
Dimension 5150c/XPS 200 -shipped MAR'05
RAM 3GB
Intel Pentium D 820 2.80Ghz 64bit NX enabled
Intel 82945G WDDM 1.0
Both the above PC's Install and run Windows 8 without a hiccup
Another 'ancient' machine, but unaffected:
Precision 490 Desktop - shipped OCT'07
RAM 4GB
2 x XEON 5365 3.0Ghz
ATI HD 6450 (Now HD 7750)
All 8.0 & 8.1 clean Installs and Upgrades on this platform had no problems
Hope some of you can throw some light on this. What does WIN 8.1 do in the boot
process that WIN 8 does not?
And if anybody has encounterd this before...
Note to multi booters - keep or reinstall Dell or other System Reserved partition (PRI,Active)
EasyBCD/Windows Boot Manager held on this partition (eg. 350MB)
If it gets corrupted, you can Restore it, rather than Gigabytes of 1st Primary O/S
Also, it will solve a lot of problems, when manipulating/adding/backing up/restoring O/S's
That's it, happy computing...
Dell Precision 490 Desktop Intel XEON X5365 (Quadcore) x 2 Chipset X5000 321x/3221ESB Southbridge AMD Radeon HD7750 HDD ST3000DM001 3TB HDD ST2000DM001 2TB SSD OCZ Vertex 3 120GB SSD OCZ Vector3 128GB x2 RAID 0 Offline WD10EALX 1TB Barracuda 7200.10 250GB
USB 3.0 WD MyBook 1230 3TB USB 3.0 WD MyBook 1130 2TB

Fellow user from St. Louis, Missouri pointed in the right direction. I'm grateful
Thanks for pointing me in the right direction. Running upgrade assistant (going to Store rejects CPU, but no details)
Results in:
X You can't install Windows 8.1 because your processor doesn't support LAHF/SAHF.
X You can't install Windows 8.1 because your processor doesn't support PrefetchW.
There are at least three Processor requirements that M'soft does not list for WIN 8.1
and it's fairly well documented, if you ask the right question, eg.:
http://www.pcworld.com/article/2058683/new-windows-8-1-requirements-strand-some-users-on-windows-8.html
So that's it, exclusion by 'stealth' - at least M'soft told you that processor required NX - Execute Disable Bit
for Windows 8
For Intel units, look out for 'VT-x. Have a processor on the way, but will Motherboard pass CMPXCHG16b test?
AND PrefetchW AND LAHF/SAHF
Windows 8 support ends 2015, that means people who bought it will have had 2 years use
WIN 8.1 Upgrade/Update (sic) is free, but costly if it won't run on your machine
So, those many people who decried Windows 8 and stuck to WIN 7, were right after all
Early supporters of WIN 8, have been 'betrayed'
'Minimum Requirement for Processor 1Ghz - don't make me laugh! (Presumably for Phone 8)
M'soft have a 'more info' link on System Requirements page, so why not spell it out...
Otherwise it looks like a PR/Cosmetic exersize
Not helpful
Dell Precision 490 Desktop Intel XEON X5365 (Quadcore) x 2 Chipset X5000 321x/3221ESB Southbridge AMD Radeon HD7750 HDD ST3000DM001 3TB HDD ST2000DM001 2TB SSD OCZ Vertex 3 120GB SSD OCZ Vector3 128GB x2 RAID 0 Offline WD10EALX 1TB Barracuda 7200.10 250GB
USB 3.0 WD MyBook 1230 3TB USB 3.0 WD MyBook 1130 2TB

Won't Wake From Sleep

I held off from posting this until I'd scoured the boards looking for ideas, but I'm totally out.
Every since I updated to 10.4.8, my MacBook Pro won't wake from sleep. I've tried resetting the SMU and PRAM, enabled and disabled bluetooth device wake from sleep, and installed the latest EFI Firmware update that was just released. I've now narrowed it down to the 10.4.8 and a change in how it handles Expresscards. If I have my NitroAV FW 800 card plugged in during a session, it seems to prevent the MacBook from going to sleep properly. According to various Console messages, the PCI device prevents the computer from going to sleep, and /or places the computer into System Doze instead, from which it won't wake. The sleep light stays fixed and steady, only disappearing if I press the power button (it only reacts to the power button). From there the screen remains dark and all plugged in device fail to respond. I can hear the drive spin back up.
It reacts the same whether or not I eject the card before putting the computer to sleep. This behavior was not present before installing 10.4.8 and having fallen back on a back up of my 10.4.7 install, can say it's not present in the older OS version. I was hoping last night's EFI firmware update would deal with this, but after having installed it and 10.4.8 anew, I'm having the same old results.
If anyone has any new ideas or can direct me toward how I can make sure the folks at Apple see this, I'd greatly appreciate it.
MacBook Pro 2.16 Ghz Core Duo Mac OS X (10.4.8) 2 GB Ram, 7200 rpm HD, NitroAV ExpressCard FW 800

This is a typical console output for these incidents:
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: PCI sleep prevented by AppleFWOHCI (5)
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: PCI sleep prevented by PXS3 (1)
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: hibernate image path: /var/vm/sleepimage
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: sizeof(IOHibernateImageHeader) == 512
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: Opened file /var/vm/sleepimage, size 2147483648, partition base 0xc805000, maxio 400000
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: hibernate image major 14, minor 2, blocksize 512, pollers 3
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: hibernateallocpages flags 00000000, gobbling 0 pages
Nov 2 04:32:08 marlon-rubios-computer kernel[0]: IOBluetoothHCIController::terminateWL .. done
Nov 2 04:32:08 marlon-rubios-computer kernel[0]: System Doze
After that, nothing until I force a restart.

Windows 8.1 Won't Stay Asleep

I have a new computer with Windows v8.1 -- the computer goes into sleep mode in less than 2 minutes rather than the 10 minute default.
Has anyone else seen this problem?
Thanks!

What are your power settings? Can you post a screenshot from your system, like below one:
Arnav Sharma | http://arnavsharma.net/ Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading
the thread.

My macbook won't go to sleep unless I use the Apple icon on the task bar

I have a late 2008 macbook unibody (old i know, but its still kickin)
The computer won't go into sleep mode with the lid closed or if I hit the power button. i have to manually do it with the apple icon in the top of the screen.
The ambient light that blinks while in sleep doesn't light up when I do this either. Its been like this ever since Lion, Mountain Lion and now Mavericks.
I've done a clean install of Maverick on a brand new HDD. No change.
*I have modified the computer since I've owned it.
Upgraded from the OEM 2GB of memory to 4GB which is the max for my model.
It didn't come with the illuminated keyboard so I bought the backlit one and installed.
I also had to swap the motherboard to do this since my original did not have the backlight connector.
**Note the old motherboard also had the same problem with the computer not going into sleep. So I don't believe its a hardware issue.
(yes I plugged everything in and seated everything in a appropriate manner, I build custom PC's for friends all the time so I kind of know what to do and what not to do).
I have checked my sharing preferences and they're all unchecked as this is a fresh install of mavericks.
Everything else is all set to system defaults.
Any suggestions/insight?

Check System Preferences > Energy Saver
Select: Put hard disks to sleep when possible
Then click: Restore Defaults

My display won't go to sleep

I just recently upgraded to the Mountain Lion OS and now my computer won't go into the screen saver (set at 10 minutes) and the display won't go to sleep (after 15 minutes). It is on all the time. Any suggestions?

Same issue in ML (sorry for continuing this thread here).
Please let me know if you figure this out. I have tried SMC/PRAM resets, disk permission repairs. Nothing.

MacBook won't go to sleep when connected to external monitor

Dear all,
I have a MacBook connected to an external monitor via DVI to HDMI adapter. The MacBook is also connected to the power adapter and to an external aluminium Apple keyboard and a wired Mighty Mouse via USB. I use the computer with the lid closed. The problem is that, even though the system preferences are set to put the computer to sleep after a few minutes of inactivity, it won't go to sleep if it's connected to the external monitor, regardless of whether the monitor is on or off. Is this normal or is there a malfunction? If the latter, any ideas how to solve the problem?
Best regards,

Hello again, JasonFear,
Thank you for your help and I apologise for not having reply earlier, but I was trying and checking your suggestions. What I have done is safe booting my MacBook, and the problem disappeared, so I started tinkering with the login and the preferences. In the end, I replaced the preferences folder using a month-old version in Time Machine. And now, I don't know if my original problem was not external-monitor related or it is just that I have a different problem because, at the moment, the problem is like this:
My MacBook refuses to go to sleep by itself when iTunes (version 9.0.3)is open. However, I can make it go to sleep using the Apple menu, the keyboard or the remote control (pressing and holding the play button).
It doesn't matter if it's connected or not to the external monitor.
I've checked this page
http://support.apple.com/kb/HT1776
but the solution is not there. When iTunes is open, I make sure there is nothing playing or downloading (no song, no podcast). iTunes checks for new episodes of podcasts every hour, and the computer is set to go to sleep after a few minutes of inactivity.
Any ideas?
Best regards,
Jobuscon

Windows 8.1 won't go to sleep

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