Sleep mode is a low-power state designed to provide very fast resuming of a computer's operation, with minimal power consumption.

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System connected to UPS goes to sleep short time after power is lost

I have a Win7 x64 system connected to the UPS. The UPS is capable of maintaining the system power for about 30 minutes. After I have connected the UPS, I have verified this by disconnecting the power ...
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How do I find out which one of those pesky programs keeps waking my machine from sleep?

Every night I put my Windows 7 machine into sleep mode, and every morning I wake up and the thing is running. How I can find out which process is waking the thing up? I've already looked at the ...
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Windows 7 can sleep but cannot hibernate

On my Lenovo T400, Windows 7 can sleep but cannot hibernate. When choosing hibernation, the screen turns black, but then there is one beep, and the screen turns back to what it was before choosing ...
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Put 'nix box to sleep from command line?

What command(s) do I type in the terminal to put the computer to sleep?
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Keep lan connection alive while going to sleep

Is it possible to keep lan connection alive when going to sleep? Although I would like a laptop independent(in general) answer, my laptop is Thinkpad T500 and the power manager shows in PCI options, ...
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1answer
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How can I put Windows Server 2008 into sleep mode?

I have Windows Server 2008 and I tried to put it into sleep mode at night. But I could not find it. Is there any way to make it sleep or turn off the hard disk?
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Power Management: Have Win 7 box turn on and off at a scheduled time

I sometimes need to run a batch job on my Win 7 Pro workstation at a fixed time. I use the scheduler to make sure the task runs then. But, I need to disable sleep beforehand, which wastes lots of ...
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Windows 7 : Prevent computer from sleeping while there is network traffic

I have a python script that is downloading data on a remote computer. I want to prevent the computer from going to sleep as long as the data download is in progress. However if the program ...
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How to find out what is preventing my iMac to go to sleep?

I have an iMac running Snow Leopard. Everything is running fine, but the mac won’t go to sleep if inactive. The settings are correct. Any ideas what might cause this? I guess some background program ...
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How can I prevent Windows from going to sleep during a scheduled task?

I have created scheduled tasks on both a Vista and Win7 machine which wake up the machine if it is currently in a sleep state. However, if the task takes longer than the power settings are configured ...
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Prevent mac from going to sleep immediately after the closing lid

Everything I can find on this subject prevents your Mac from going to sleep until you specify when you want it to go to sleep. Sometimes I close the lid of my laptop then realize I forgot to do ...
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Computer wakes up from hibernation at exctly 3:40am every day

I'm getting tired of waking up to my computer being turned on, and event log shows that it's waking up everyday at 3:40am and most times won't go back to sleep after the determined 30 minutes (maybe ...
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1answer
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Windows 8 sleep, blank screen on resume

I use a SONY VAIO laptop VPCS116FA that came pre-installed with Windows 7. I have upgraded to Windows 8. The experience has been good so far but I am facing a frustrating problem. Whenever, I put my ...
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Windows 7 does not 'wake up' from Sleep mode

I'm new to Windows 7, so I don't know if this is normal. When the computer is idle for 30 minutes, the screen goes black and no key pressing or mouse movement will bring the computer out of standby. ...
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6answers
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How to disable power to USB ports when laptop is in sleep mode

I have a Windows7 laptop with two external 2.5" HDDs and a cooling pad connected through USB ports. When I put the laptop to sleep, these devices are still powered on - the fan in the cooling pad is ...
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2answers
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HP laptop (Windows 7 x64) turns itself on @11:30am every day

My HP laptop wakes up from sleep every day at 11:30am by itself. No tasks scheduled for that time (either user or Windows tasks). No AV scans or updates scheduled for that time. Auto-defrag & ...
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How to prevent a Windows 7 PC from sleeping when CPU usage is over X%?

I often leave the PC running into the night to process video files, so it shouldn't sleep while it's working but it would be nice if it went into sleep when it's done. During the export the CPU is ...
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is there a way to force a computer into sleep mode at certain times?

for example, to save electricity. Could you make a domain policy that makes a pc go to sleep between the hours of 9 pm and 6 am. You can always turn it back on. It just goes to sleep unless it's ...
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Windows 7 Sleep Problems

My desktop's Windows 7 installation was working perfectly but recently I ran into a problem where it would not come out of sleep. The system seems to be running it's just that it won't come out of the ...
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Sleep Freezes Laptop

My laptop freezes when it automatically goes to sleep (or hibernate) due to Control Panel's Power Options settings. I can not get the laptop to wakeup by pressing any keys including Control + Alt + ...
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How to prevent Windows 8.1 from gathering windows onto a single display when sleeping?

Whenever my laptop sleeps, it gathers all my windows onto the primary monitor. How can I prevent this behavior? I setup my workspace in a very specific way, and it's super frustrating to have all the ...
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1answer
403 views

Black screen when macbook returns from sleep

I have a macbookpro unibody late 2008 15p and use OS X Lion, 10.7.3. I use always an external monitor and close the lid. When I finish my work day I put the macbook in sleep mode and it switches off. ...
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Windows 7 crashes after putting PC into hybrid sleep mode

I just built my new PC 2 days ago. It works extremely well, except that it can't go into hybrid sleep mode. My PC is running Windows 7 Professional X64 With hybrid sleep allowed, when I click sleep, ...
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Prevent laptop with external monitor from reverting to built-in screen after waking from sleep

I have a new HP Mini Note running Windows 7 Starter. It mostly stays on the desktop with an external widescreen and whenever I'm not using it I close the lid, thus putting it to sleep. Now more often ...
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Windows 7 power button reverts from “sleep” to “shut down” after re-boot

I want the power button on my Windows 7 desktop to put the system to sleep. I can instruct Windows 7 to do this via the Control Panel, and this works, but every time I re-boot, the setting reverts ...
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Is there a systematic way to test for sleep problems?

I've searched here and on Google, however most of the advice is "check your BIOS and Drivers and make sure they're all up to date" However, is there a systematic way to debug/diagnose sleep problems ...
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How do I stop my computer from going into sleep or hibernate mode?

I have noticed that when I run Windows Media Player on my laptop, that the screen saver will not start and more importantly my computer will not go into sleep or hibernate mode. However, when running ...
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Mac: How to log in as different user when Mac requires password to wake from sleep?

If your Mac is set up to require a password when being awoke from sleep or the screen saver is it possible to log in as a different user? If so how?
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Win 7 won't stay asleep

My Win 7 RC will not stay "Asleep". After about two minutes it wakes up. It won't go to sleep after the TV show is recorded and finished either. So, my computer is on most of the time. What can I ...
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4answers
220 views

Is it sleeping or hibernating?

Simple question, when I close the lid on my laptop, is it suspending to RAM or to disk? If it depends on the laptop, than how can I find out? EDIT:Running Windows vista and 7 RTM on dual boot.
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What happens when a computer goes to sleep? [duplicate]

Possible Duplicate: What is the difference between (these four) sleep states? What exactly (hardware and software-wise) happens when a computer goes to sleep? Do the actual processes turn ...
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My computer wakes up from standby in the middle of the night and doesn't want to remain standby

I recently upgraded to Windows 8. I found that a strange phenomenon is happening often during day or night hours (night hours being the most annoying). I usually turn my computer "off" by putting it ...
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What will the laptop do if I close the lid when plugged in then unplug it after I've closed the lid?

If my laptop is set to "do nothing when I close the lid when plugged in" and "hibernate when I close the lid when on battery, what will the laptop do if I close the lid when plugged in then unplug it ...
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How to lock Windows on sleep?

After my Windows 7 returns from a hybrid sleep, it shows the desktop instead of the logon screen. How to fix this?
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computer wakes up without any reason

Sometimes my PC wakes up (from sleep mode) without any visible reason. Wake-on-LAN is turned off. Vista 64 bit SP2 Any ideas?
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How do I stop Ubuntu from hanging due to processes going into 'disk sleep'?

I'm using Ubuntu 9.04 64 bit on an AMD. It regularly hangs for a few minutes at a time when some of the processes's CPU usage % goes into 'disk sleep'. During that time I can't start new programs and ...
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Wake timers don't wake computer from sleep mode

I'm got a custom built PC running 64 bit Windows 7 Ultimate. So far everything works great except for one thing: it will not wake up from sleep mode for a wake timer or scheduled task. Sleep mode ...
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Why might a Macbook Pro be freezing on resume from sleep?

My Macbook Pro (17" 2.2 Ghz Intel Core 2 Duo, OS X 10.4.11) often locks up when it resumes from sleep. I usually know I'm in trouble when the display brightness doesn't adjust right away. Then it ...
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My Windows 8 computer does not come out of Standby

My computer will not come out out of standby. It has had this issue ever since I bought it ~4 years ago. When I purchased it, It came with Vista, I have since upgraded it to 7 and now 8 Pro, each time ...
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Why has my computer started to make noises when I turn it on after I put it into sleep mode for the first time a week ago?

I would usually have my pc on all day and fully shut it down at night time before I went to bed. I decided to put it into sleep mode instead the other day and everything was fine but when I woke it ...
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How can I stop windows re-positioning after waking from sleep?

I put my multi-monitor system to sleep when it's not in use. After I wake it up, all windows are repositioned to a different screen. The closest pattern I can think of is that the windows there were ...
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1answer
944 views

Vista laptop keeps waking up a minute after I put it to sleep

I have used the command powercfg -lastwake to determine what is waking up my computer. Here is what it produces in prompt Wake History Count - 1 Wake History [0] Wake Source Count - 1 Wake ...
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How can Windows 7 be set to sleep at 8pm and wake at 8am every day?

I'm trying to figure out how to get Windows 7 to sleep at 8pm and wake at 8am on a daily basis. I'm looking at Windows' services and there is a Shutdown.exe that can run, but it only seems to have a ...
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2answers
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Finding the cause why a laptop wakes itself from sleep

My new Windows 7 64bit laptop keeps waking up from sleep. I tried various things and still it wakes up: Disconnecting the mouse\keyboard Disconnecting it from the LAN Keeping it with the lid closed ...
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votes
2answers
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Mac Mini - Monitor gets no signal everytime Mac wakes from sleep

Everything works fine until the Mac goes to sleep, then upon waking it the monitor (Wacom Cintiq interactive pen display) gets no signal and I have to unplug it from the back of the mac and plug it in ...
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Disable power LED blinks during Vista hybrid sleep?

Does anyone know how to disable the blinking power LED when Vista enters hybrid sleep mode? My case has a very bright blue LED that is rather distracting. I'd rather not disable hybrid sleep, as it ...
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1answer
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Windows 8 wakes from sleep immediately with errors regarding “memory type range registers (MTRRs)”

After an arbitrary, but small amount of time, my computer wakes back up after going to sleep. I have attempted desperately to solve this issue, short of contacting any official support or ...
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1answer
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Windows 8 won't resume from sleep

I upgraded to Win 8 from 7, not through a fresh install and some months now I've noticed that I can't wake up my computer by any means except by pressing the on/off button. After researching ...
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Win7 x64 going to sleep randomly, most often during gaming?

I have a Win7 x64 on a HP 625 laptop. I've reinstalled Windows twice or thrice because of other problems, but this issue keeps popping up: Mostly when gaming, but completely randomly, Windows goes to ...
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How can I make my external monitor the default monitor for games?

When I boot into Windows on my Macbook Pro, I am unable to make the external monitor the default monitor. So when I play games full screen, they automatically open up on my laptop monitor. I want ...