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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10
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3answers
6k views

What is preventing my MacBook from sleeping?

I have a MacBook Air and I have noticed that even though I have configured it to put itself into sleep mode after being inactive for 5 minutes it sometimes stays awake. I've usually got a bunch of ...
0
votes
1answer
331 views

Keep iMac awake but the screen off

Is there a way to keep iMac awake but let display sleep? Programs like Caffeine and Jiggler will keep the screen on and this is what I'd like to avoid.
0
votes
1answer
513 views

Monitor not “waking up” Not sure if harware or settings

Running Win 7. After manually puttinng computer to sleep, oftentimes when I move the mouse to wake up, the screen remains black and I can't hear computer ramping up. Does not happen all of the time. ...
3
votes
2answers
945 views

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 ...
3
votes
2answers
3k views

How can I make Ubuntu not go to sleep when I close my laptop?

I use Ubuntu 10.10 on a laptop. I changed the "blank screen" settings at "System preferences -> Power management" and "Screensaver" and when I am logged in I can close the lid without going to sleep. ...
1
vote
1answer
662 views

The perfect cron job as a wake up service

I need a cron job script coded on MAC OS X following the process below: Put the computer into sleep mode on weekdays except Fridays at 10:30 pm. Wake the computer up from sleep, boost the volume to ...
6
votes
4answers
3k views

Computer care: Hibernate, Sleep or Shut Down?

Which is the best for the "longevity" of your hardware, when done on a daily basis? Should I use sleep, hibernate or shut down? EDIT: As evident in some of the answers, the answer seems to vary by ...
2
votes
1answer
265 views

Can't return from standby mode when machine goes to timed sleep

Dell XPS M1530 running Vista SP1. Recent problem. When machine automatically enters standy, it will not resume. even after a hard reset. A brief power light and then nothing but fan noise. Black ...
1
vote
1answer
691 views

Does iMovie prevents going to sleep?

I've started making a movie in iMovie project (which takes about 3 hours). In System Preferences, i've seen the option to shedule, but leaved it disabled. Also in System Preferences, i've set the 30 ...
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vote
2answers
13k views

Why would my computer automatically restart after “shutdown” and “sleep”?

After my "firmware lost the hibernation information of my Windows 7 computer" I have fixed everything except the problem that the computer now will not shut off. If I choose "shut down", it shuts ...
2
votes
1answer
2k views

Can I download files while Windows is sleeping?

Can I? If not is it because in the low energy mode the network card or the hard drives shutdown? If they do is there any way to prevent this (ie. with a custom low energy mode)?
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vote
2answers
969 views

Chrome continue download when OS X sleeps

Will Google Chrome continue downloading even when my Mac goes to sleep? EDIT: By sleep, I mean the timeouts I set in Energy Saver Preferences from the battery icon. For example, I set Computer Sleep ...
3
votes
3answers
2k views

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 ...
1
vote
1answer
625 views

Will sleep/wake buttons work on bluetooth keyboard

I am thinking about buying a wireless (bluetooth) keyboard to my laptop. I am wondering whether it would be possible to put my laptop to sleep and wake it up via this wireless keyboard. As a matter of ...
4
votes
3answers
385 views

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 ...
8
votes
4answers
14k views

What is the hotkey to put my Windows to sleep?

My keyboard doesn't have power-related keys. I would like to enter the hybrid sleep using the keyboard and only with a minimum of keystrokes. If there is none, how do I bind a hotkey to it?
2
votes
1answer
1k views

What keeps running when a MacBook Pro is in sleep mode

When I put my MacBook Pro to sleep by closing the lid, sometimes I hear the alert notification that plays when the mail program finds new messages in the inbox. This means that the mail program is ...
1
vote
2answers
617 views

Why does my laptop wake up in the night to hibernate?

I have Win7 64bit and I have it set to sleep when I close the lid. If I open it a few hours after closing (in the evening after work) it wakes from sleep, however when I turn it on again in the ...
0
votes
0answers
443 views

MacBook Pro i7 won't automatically sleep

I've been looking around quite a lot on various forums to work out why my computer wont automatically sleep after the set interval, however it does sleep properly when the lid is closed and the sleep ...
0
votes
2answers
857 views

VPN to a Mac that is in sleep mode

How can I log into and wake up a sleeping Mac remotely through a VPN connection?
4
votes
1answer
2k views

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 ...
4
votes
4answers
5k views

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 ...
1
vote
0answers
3k views

DpHostW.`.exe` process doesn't respond and use 25% CPU?

Sometimes when my Dell Vostro 3300 have been in sleep mode and then wake up, the fingerprint reader doesn't work. I also notice the cooling fan runs high and the process "DpHostW.exe" that is used for ...
0
votes
1answer
530 views

Can no longer login to workstation locally after RDP session

My Windows 7 system (Dell XPS 420) is not letting me login to the console after one or more Remote Desktop sessions. When I "jiggle the mouse" to wake the system, nothing happens -- the monitor stays ...
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vote
2answers
3k views

My computer won't go into standby or hibernate

I have a problem that I first noticed yesterday. Whenever I would press the half moon standby button on my keyboard, my computer would go to sleep. I also have a shortcut on my desktop configured to ...
2
votes
3answers
3k views

Windows 7 hibernate not working

I have hibernate enabled, everything should work fine. When I press the hibernate, screen goes black (as expected), but after a short time the disk LED stops flashing, and computer turns off strangely ...
4
votes
2answers
6k views

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, ...
0
votes
1answer
979 views

Will mapping a network drive prevent the computer from sleeping?

I have a media computer that I want to go to sleep when it's not being used. Trying to be green to my wallet. But it seems like since I've done the network mapping, that it doesn't go to sleep. ...
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vote
2answers
2k views

How to make Windows XP sleep after I press Win+S?

Nothing happens for shortcut key Win + S to make Windows XP sleep. Is there a light-weight tool for exactly this job?
2
votes
2answers
343 views

Macbook's internal hard drive shutting down every 10-15 seconds

I upgraded my Macbook's internal hard drive from a 400GB Western Digital Scorpio Blue to a 750GB Scorpio Blue and restored from Time Machine. Despite my energy saver settings, the new drive shuts ...
7
votes
5answers
4k views

iMac with insomnia

I'm having problems with getting my late 2009 iMac (running 10.6.4) to sleep, which it is set to do after fifteen minutes of inactivity. Sleep works fine when manually commanded - the screen, fans ...
44
votes
19answers
42k views

Is it still necessary to shut down computers?

Nowadays with our modern operating systems, is it necessary to fully shutdown computers instead of choosing to stand-by or hibernate computers (desktops and laptops)? Would there be any side-effects ...
3
votes
1answer
1k views

Mac OS X unexpected wake up after hibernate

OS X 10.6 I use deepsleep widget to put Mac into hibernate without powering DRAM. However Mac always wakes up like 2 hours later unexpected. Things I've checked: No scheduled wake up in Energy ...
2
votes
1answer
2k views

Fans not turning off when custom built computer sleeps

I just finished building my custom PC, and I have two 80mm fans that have molex connectors, but not the three pin cables that connect to the motherboard (mine is a MSI H55M-E33). So, I just connect ...
2
votes
3answers
1k views

Task scheduled to wake laptop - only works when lid is open

I am running Windows 7 Starter on an Acer Aspire One laptop. I want my laptop to automatically run a task (backup the HDD to a network drive) once a week in the middle of the night. I scheduled the ...
2
votes
1answer
198 views

How can I discover why my machine won't sleep when it is supposed to be? [duplicate]

Possible Duplicate: Windows 7 PC no longers goes into power saving mode I have a windows 7 x64 machine which is scheduled to go to sleep after a certain amount of inactivity. Recently it ...
1
vote
2answers
307 views

Windows 7 refuses to enter sleep after bios reset and OS install

Now, my Windows 7 system will only turn the screen black and then is immediately woken up after I hit the sleep button, through either start menu or the keyboard, and the same issue exists with ...
2
votes
2answers
2k views

Machine seems to sleep but doesn't power off?

I have a windows 7 x64 machine which sometimes (not all the time - no discernable pattern) when I tell it to sleep turns off the monitor but never powers off the machine (left it overnight). It then ...
3
votes
3answers
2k views

Windows 7 PC no longers goes into power saving mode

Recently, my computer stopped honoring the power saving settings. It stays on all the time, even though I have it set to go into sleep mode after 20 minutes of inactivity. It used to work as ...
0
votes
1answer
214 views

Odd hardware problem that requires a power cycle

I've been having an odd problem intermittently every several weeks with my Windows 7 PC. If I put it to sleep, occasionally, when I try to wake it up, the monitor will receive no signal. It seems ...
0
votes
2answers
1k views

Windows 7 laptop cannot sleep, wireless turns off

I have an Acer Extensa 5220 running Windows 7, and around a month ago it started having problems when attempting to enter sleep mode. The screen dims to black nicely like it always does, however the ...
2
votes
2answers
987 views

How to prevent a shared Win7 computer from being shutdown by others, and to have it sleep instead?

I would like to be able to prevent a shared computer from being shutdown by others, because I use WakeOnLan to wake the computer - however this doesn't work when it is off, and the other users of the ...
5
votes
1answer
3k views

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 ...
5
votes
2answers
5k views

Windows 7 can't sleep (It locks instead)

I have a problem with my Windows 7 desktop. Everything works fine, except that it can't goes sleep, when I try to make it sleeps (clicking on "Sleep" on the start menu), it just locks the session (It ...
2
votes
2answers
3k views

Is there usleep for Ubuntu?

There's usleep() in libc, but I didn't find any command line utility to do this. Though I've written a piece of C code, I'm still wonder if it already existed somewhere?
4
votes
2answers
13k views

How do I prevent Ubuntu from putting my monitor to sleep?

Ubuntu 10.04 Under Preferences > Power Management I have changed the settings to never put the computer to sleep and never to put the display to sleep. My display still goes to sleep and I am ...
0
votes
1answer
865 views

How to prevent Vista from entering Sleep mode when certain conditions exist?

Mainly, I would like to prevent my laptop from entering Sleep mode when I am playing music or streaming video. This is on my laptop, so another option that would work would be to prevent sleep mode ...
3
votes
2answers
2k views

Dell Media Direct is rebooting my machine when it goes into sleep mode

I've got a Dell Studio 1535 laptop, which shipped w/ Vista 32-bit. I've since formatted and installed Windows 7 64-bit. Everything has been fine for months, but recently, every time I leave my machine ...
2
votes
2answers
4k views

Sleep is disabled on my Windows 7, how do I enable it?

When I go to Start->Shutdown Menu the Sleep option is disabled. What's going on here? I read online it could be the graphics driver but that's insalled already. What is causing this?
0
votes
3answers
2k views

Windows 7 64bit making users login twice after waking up from sleep

I have a few Windows 7 clients exhibiting this strange behavior when my users try to login to a domain. For the issue to occur then pc must have been asleep for about an hour or more, then a user ...