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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Laptop waking up from sleep because of “power button”? (Windows 8.1)

My computer is brand new but has a serious problem - it wakes up from sleep mode on its own in the middle of the night, usually a couple hours after I put it into sleep mode. This problem is ...
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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 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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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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Wake a Mac display from sleep via SSH

I'm using Jenkins as a CI server, where I'm SSHing into an iMac running OS X Mountain Lion (10.8.4) to run some UIAutomation integrations tests on an iOS app. The iMac actually sits 10 ft from me (but ...
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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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Hibernate Option Disappeared

A while ago I had the option to hibernate the computer. Nowadays, this option disappeared. In fact, even the standby option (when click the turn off button) is greyed out. I have tried the "powercfg -...
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How can I make my laptop go to sleep 5 minutes *after* closing the lid?

Windows 7 can turn go to sleep when I close my lid, or after a period of inactivity. Fine. I don't want it to go to sleep immediately after closing the lid; I want it to wait 5 minutes and then go ...
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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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Surface Pro 2 running Windows 10 will no longer sleep

Prior to having Windows 10, I had Windows 8.1 where sleeping would work fine. Pressing the power button or just letting it sleep on it's own would both work fine. Now, if I press the power button, ...
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457 views

Preventing closed Macbook from sleeping at startup

I have an old Macbook that I'm going to be tucking in a cabinet for use as a media server. It's currently running InsomniaX to keep it from sleeping when the lid is shut. This works great when I ...
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238 views

Laptop wakes up from sleep every several hours

I have a new ASUS Zenbook UX305. OS: Windows 10 Home I've figured out that my laptop wakes up from sleep during the night, so i reviewed the event viewer and found out that it happens about 3-4 times ...
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471 views

How to put Windows to sleep when monitor (HDMI) is turned off?

I have a HTPC (Intel NUC) connected to TV via HDMI. Is it possible to put Windows to sleep when the TV is turned off? It seems that Windows does have built-in detection for when monitor is turned ...
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2answers
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My Windows 7 PC wakes up randomly and powercfg lastwake shows nothing. What to do? [duplicate]

Possible Duplicate: Laptop randomly waking up = Hibernate / Low Battery? My PC wakes up from sleep randomly. I disabled Hibernation after Sleep. I am using Asus N53SV with Windows 7 64 bit. ...
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1answer
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Checking if a computer on local network is a sleep or not without waking it

I would like to check if a computer on a local machine is in a sleep or awake, but without waking it on LAN. If I ping the machine then machine automatically wakes up. I don't want that. I just need ...
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1answer
866 views

Windows won't enter sleep mode

Just upgraded my computer with some new hardware, including an SSD. Re-installed windows, running Win 8 x64 Release Preview. The system won't enter sleep mode, I can manually put it into sleep and ...
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Prevent laptop from going to sleep when I close the lid, but only if I'm connected to an external display

When I'm connected to an external display, I would like to close the laptop without it going to sleep. When I'm not connected to an external display, I would like to have closing the lid put the ...
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398 views

Power plan override?

Anybody know of a program that can detect if you're viewing a video, and if you are, prevent the current power plan from turning off the monitor and/or putting the computer to sleep? (For Windows 7, ...
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1answer
872 views

How do I prevent my bluetooth headphones from waking my computer from standby?

I have a pair of Bluetooth 4.0 headphones which are paired with both my laptop and my desktop. As soon as I power on the headphones, they will wake any paired device from standby. So if I have my ...
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Keyboard doesn't work after Windows resume from sleep (S3) — how to fix?

I have a weird issue with my keyboard after resuming from S3 sleep: I can type perfectly for maybe 5 seconds, but afterwards the keyboard ceases to work until I hibernate or restart (or sleep again -- ...
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2answers
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Is it safe to carry laptop around in sleep mode?

I heard that a hard disk in a laptop is more susceptible to damage if it is turned on. A person damaged their laptop's hard drive by having their laptop on while it was in their backpack. I also ...
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Sleep shortcut in win7 [duplicate]

Possible Duplicate: What is the command to use to put your computer to sleep (not hibernate)? When I try to create a sleep shortcut in windows 7 x64 using this code: C:\Windows\System32\...
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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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Mac OS X auto Sleep prevention

I have a problem with Mac OS X (Leopard) on my MacBook Pro: when I go away for a few minutes my laptop automatically sleeps and all my running applications stop working (such as my downloads). What ...
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Stop a Mac from sleeping while a bash script is running, then allow it to sleep as normal once complete

I've got my Mac to wake up during the night and run an rsync to back it up. This is configured through Energy Saver > Schedule. However it seems that it's going back to sleep before it can get ...
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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 off, ...
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How can I logoff and go to stand-by via Win XP script?

I am looking for a way to write a script (of any sort) that would both log me off my local Windows account and also immediatedly put the computer to sleep / stand-by. I've found solutions that can do ...
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Macbook Pro - Randomly sleeps and won't wake up

All, I have a Macbook Pro 13" (mid 2009) that has had a long time issue which seems to be getting worse. Occasionally, I will go to wake the computer with the keyboard and can't wake it. The HDD ...
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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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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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Acer Aspire E1-572G won't wake up from sleep

I have this laptop at work, Acer Aspire E1-572G, and whenever it sleeps, it does not want to wake up whatever I do. I put it to sleep by closing the lid or FN + ALT + F4. I tried of course opening ...
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What is keeping my disks awake?

I have configured my hard drives to go to sleep after 1 minute of inactivity. This used to work very well; the server was almost always dead silent. But recently the drives are more often awake. Can ...
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Laptop wakes up from Sleep mode when I remove the mouse [duplicate]

Possible Duplicate: Notebook wakes up after disconnecting mouse On my new laptop the following happens: I press the Power button and the computer goes to sleep. OK. I unplug the cables, and ...
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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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MacBook does not go to sleep when plugged in since upgrading to Lion

My MacBook does not turn off when I put it in sleep mode, when it is plugged in. I put the laptop on "sleep" or close the lid, but the computer stays on and stays hot! My MacBook goes to sleep fine (...
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Mac Book Pro wakes up in my backpack

This has happened to me twice: I press the power button on my Mac Book Pro, choose sleep, close it, unplug everything, confirm that is off (by pressing my ear to it) and put it in my bag. Some ...
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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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Why does this monitor go to sleep but won't wake up, event though all related power options are turned off?

We have a machine, Windows 7 (64-bit) with ASUS motherboard, in our building that only sometimes seems to go to sleep, but won't wake up. The machine is still running but shaking the mouse or hitting ...
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What counts as inactive time for the purposes of sleep/hibernation?

My computer was in the middle of running a long computation in Matlab when it went into hibernation mode. Clearly I am not understanding the definition of "how long your computer is inactive", see ...
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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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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 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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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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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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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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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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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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Diagnose slow wake up from sleep

My new work computer (Dell Precision T3600, 16GB RAM, SSD) running Windows 7 takes roughly 40 seconds to wake up from sleep mode. How can I diagnose what's taking so long? And what can I do to reduce ...
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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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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 ...