Display constantly going to sleep on OSX Lion

Is anyone else having this issue after installing Lion? My display will go to sleep at random intervals when I'm using my Macbook. Sometimes it's once every hour, sometimes it goes once every five minutes. The display will go black, the backlight on the keyboard will shut off. All I have to do it click the track pad to get it back, but it's getting increidbly irritating.

Same issue on my 2012 Mini. I have a WD 1TB drive in a Macally enclosure. Worked OK with FW800 but with UISB3 will not always wake up when TM wants to do a backup. I then have to turn it off and power up the drive again. I wish I could keep the HDD from sleeping but WD has a built in sleep function that I cannot control even though I have unchecked the go to sleep function in my Mac preferences energy menu.

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External displays not going to sleep?

Environment: Early 2013 MBP Retina 15'', OSX 10.8.5, two external HP LP2475w monitors connected via DP-DVI adaptors. The monitors are correctly recognized in the system report.
I am not running a screen saver, and in the Energy Saver preferences, I have set the display to go to sleep at 15minutes (long before the computer goes to sleep).
The built-in display indeed goes to sleep at the predetermined time, but the external monitors simply get a black screen, they don't actually go to sleep (indicator light is green, the backlight is still on). There is no problem with the monitors, they correctly go to sleep under both Windows and Linux.
My theories:
(a) vesa information about how to turn the monitors off is incorrect
(b) something about the mini displayport to dvi adaptor kills that signal
(c) there is no way to turn off external monitors, I'll have to live with this
Help?
Thanks!

exactly the same here. 2011+dell 24"
i called apple hotline and they did this with me:
http://support.apple.com/kb/HT3964
and
http://support.apple.com/kb/HT1379
after this the external monitor went to sleep flawless. ... but as soon as some usb-ports are busy (with an external drive or something) - even when everything falls asleep the external monitor keeps on again.
but a least without the usb the monitor now falls asleep too - so there is hope!

IPhone constantly goes to sleep requiring password to wake up

Need help to stop my new iPhone from constantly going to sleep requiring me to constantly re-enter my password. Is it possible to change this and where and how?

Hello Roger Walker USA,
It sounds like the Auto Lock function of the phone is set to be too short, so you keep having to wake your phone up and enter your passcode much more than you would like. You can change this in Settings:
Set the amount of time before iPhone locks
Choose General > Auto-Lock and choose a time.
From: iPhone: About General Settings
http://support.apple.com/kb/ta38641
Thank you for using Apple Support Communities.
Take care,
Sterling

Display keeps going to sleep?

The last few days the display (maybe the whole computer?) has been randomly turning off on me and the light on the open button turns on, as if my computer is sleeping or closed. Sometimes it takes a few taps on the spacebar to turn back on and sometimes it takes me closing the computer and waiting. If i do have to close it, the computer seems to recognize that it's closed because the light on the open button gets brighter. I have messed around with the power settings and turned the settings so that nothing ever goes to sleep, but this seems to do nothing. Sometimes this happens over and over again, and other times it will only happen every few hours. Anyone have any ideas what could be going on? This is driving me nuts.
Thanks

I am having the very same problem. It began this week.
Now every so often my Powerbook randomly goes into sleep mode, when I click on the mouse she wakes up.
I am at a loss as to why this is happening, but found this thread
http://discussions.apple.com/thread.jspa?messageID=5006452
Looks to me like a fiasco and a nightmare.
I'm thinking it could be the main battery inside the computer causing problems with the temp readings and causing a safety feature to kick in, but that's a guess and I do not know know what to do to fix it yet.
I'll get back if I can figure it out.

Just Updated to 10.5.2 on Feb 10, 2008, Display not going to sleep anymore

Greetings:
I am running on a Macintosh G4 Graphite (which has been heavily upgraded to a G4 1.8 Ghz processor (Sonnet Tech Encore) and it has 1 GB RAM and an upgraded ATI Radeon 9200 Mac Edition video card). Under 10.4 -10.5.1 everything worked fine.
I have my Power management settings set to put the display to sleep every 30 mintues and changed to 3 mins to check if something else was up.. but the display is definitely NOT going to sleep any more.
Any thoughts and is anyone else having this issue?
I have not yet trashed the preferences file, mainly because I am not sure where it lives.
Thanks,
Mike

Hello All Again:
Just wanted to update you on how I fixed the problem. Not sure what specifically in the combination fixed it, but it does now work
First I opened System Prefs > Energy Saver and hit the set to defaults button. I then exited System Prefs.
I then went into Terminal and ran pmset displaysleep 30 and exited terminal.
Lastly, I went into System Prefs > Energy Saver and selected 3 minutes. Exited System Prefs and waited and lo and behold it worked. So I rebooted my system and then set the timer back to 30 mins and it has been working again so far.
I suspect that the pmset from terminal may have refreshed something in the prefs file someplace, but again it was just something in that string of things I did that worked.

MBPro + Cinema Display not going to sleep

Hi everyone,
I have a MBpro 15 (mid 2010) hooked with a 27" Cinema display.
When i use the laptop without the cinema display and i lock the screen, after a few seconds the MBpro goes to sleep (and definitely you save battery power by doing that).
When it is connected to the cinema display and i lock the screen, the MBpro doesn't go to sleep at all and stays on even all night long.
I haven't found any suggestion on how to send the MBpro+cinema display to sleep with a locked screen, can you help?
Thanks for helping

I have the exact same computer as you with the same issue.
Looking for a Guru to help.
Trashing:
Library:Preferences:SystemConfiguration:com.apple.PowerManagement.plist
Doesn’t help.
Any suggestions welcome.
Thanks ... Ken

HT1776 I have no Energy Saver in my MacPro, how can I set it not to sleep in OSX Lion?

I want to be able to remote control my Mac Pro when I travel, But if it sleeps, I can not access it via logmein. I have a Model 1,1 MacPro running OSX Lion.
It has no energy Saver where I can prevent it from sleeping. Is there a way of me remote controlling it if it is asleep or shutdown?

Sorry, but Energy Saver has always been a part of OS X, so if you don't have it then you've deleted it. Try reinstalling OS X. Better yet upgrade OS X to at least Snow Leopard.
Upgrade Paths to Snow Leopard, Lion, and/or Mountain Lion
You can upgrade to Mountain Lion from Lion or directly from Snow Leopard. Mountain Lion can be downloaded from the Mac App Store for $19.99. To access the App Store you must have Snow Leopard 10.6.6 or later installed.
Upgrading to Snow Leopard
You can purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard — Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.
After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mountain Lion if your computer meets the requirements.
     Snow Leopard General Requirements
       1. Mac computer with an Intel processor
       2. 1GB of memory
       3. 5GB of available disk space
       4. DVD drive for installation
       5. Some features require a compatible Internet service provider;
           fees may apply.
       6. Some features require Apple’s iCloud services; fees and
           terms apply.
Upgrading to Lion
If your computer does not meet the requirements to install Mountain Lion, it may still meet the requirements to install Lion.
You can purchase Lion by contacting Customer Service: Contacting Apple for support and service — this includes international calling numbers. The cost is $19.99 (as it was before) plus tax. It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.
     Lion System Requirements
       1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,
           or Xeon processor
       2. 2GB of memory
       3. OS X v10.6.6 or later (v10.6.8 recommended)
       4. 7GB of available space
       5. Some features require an Apple ID; terms apply.
Are my applications compatible?
         See App Compatibility Table — RoaringApps.

How do i keep my display from going to sleep?

I cant figure out how to keep the display from going black on me when I am connected to my lcd tv and am watching movies through the macbook pro. I have tried to change everything related to the display but to no luck. It just goes black after 20 minutes or so on the lcd tv. It is fully connected to a power source. Any ideas?
thanks
C

You've tried setting System Preferences > Energy Saver > Sleep tab > "Put the display(s) to sleep... to "Never" - all the say to the right?
If nothing else, you can use a 3rd party app like Jiggler to keep the display active:
http://www.sticksoftware.com/software/Jiggler.html

IPod Classic auto ejects from iTunes after computer goes to sleep on Mountain Lion

I posted the following a few days ago in the Mountain Lion as I am suspecting the OS has something to do with it, but got no replies so I thought it might be good to post this here too in case this issue would be familiar to some of you.
I usually have both a 160gb iPod Classic (original) and a 16gb original iPod Touch plugged into my computer and connected to iTunes, so I can listen to tracks from the devices straight through iTunes. This has worked very well for years, but since upgrading to Mountain Lion, every time the computer wakes up after going to sleep when I haven't used it for a little while, iTunes ejects my iPod Classic, and I have to replug it, but it doesn't do it with the iPod Touch. This never used to happen before, and is a tad annoying when it happens recurringly through the day.
I have also noticed that, if the iPod is ejected, it seems to erase the play count for the tracks I was playing prior to the computer going to sleep. This is no major issue, but it seems a bit odd.
I initially thought that this was happening on my work iMac but not at home (both running the latest versions of Mountain Lion and iTunes), but it does in fact happen on both computers. This behaviour only started when I upgraded to ML, and although it could be a coincidence, I think it may have something to do with it.
I am using the latest version of iTunes.
Can anyone help with this please?
Thanks

Hi there,
Thank you for your reply, that's much appreciated. In a way it makes me feel slightly better to know that it's nothing to do with my iPod, although it is quite frustrating. Don't Apple QA their products before releasing them anymore? I've had quite a few issues with ML since installing it. I understand you get bugs with new products, but that would be one quite easy to identify I'd think. Oh well, I'll have to suffer this like everybody else until Apple get it sorted.
Once again, thank you.

Problems since 1.4 Worsen (including display not going to sleep)

I've had my Pre device (under Sprint's service) since it launched and have had intermintent problems that have all seemed to fix themselves throughout the software updates. However, things seem to be getting worse and increasingly frustrating since the latest 1.4 OS, and I'm surprised not more people are having the same problems. For me, they are:
1. Frequent "too many cards in use" error messages when no applications are in use. This issue has been posted for earlier OS versions and the only solution seems to be rebooting.
2. The volume adjust bar shows up randomly and frequently when not pressing the volume adjust up/down buttons on the side.
3. And the worst, which prompted the desperation for this post is that today my screen would not go to sleep when pressing the power button as usual. My device seems to literally be going haywire and frequently either appears as if a ghost is touching the screen with random things opening (like the date/time, pull down for turning on wi-fi, etc.) or the touchscreen will be completely unresponsive without some prompting by opening and closing the slider, or pressing the sleep button several times to "wake up the device". Needless to say, this is driving me crazy, and for all intents and purposes is making my phone unusable, especially since the screen won't sleep.
I'll probably take the time to go to a Sprint store for service, but wanted to see if anyone is having similar issues or may have solutions.

since 1.4 the "too many cards" & "memory critical" has gotten out of control. It even happens now when I turn on the phone & open one card. Usually within 2 minutes of me turning the phone on I have to restart it again sometimes twice. I hate this phone now. If Sprint has a comparable Android phone when it's time for me to upgrade I'm gone, unless Palm announces a better phone when Sprint annouces the early Summer lineup. I can see why the stock for PLM is rapidly declining, I can't blame the holders for leaving. My previous palm devices were great, this is a HUGE DISAPPOINTMENT!
i've been having the same issues myself including intermittent connections to BT headset, or even being able to use speakerphone when BT connection keeps disconnecting. You're absolutely correct when discibing the symptoms as if a ghost is playing on your screen. I sit & watch my phone going through at least every 4 minutes I keep the screen on. I can't even do any other tasks on the phone while i'm taking to someone because the phone hangs up on them if the screen is still on less than a minute. I've talked to Sprint about this 4 times they keep treating it like it's not that a big deal.transferred me to Asurion once they kept acting like what was happing was my fault. Then told me they would send me another phone if I pay a $100 duductible, problem,this is my 2nd Pre & it's a refurb. I need a NEW one if I have to pay another $100 for a 3rd one. Palm should pay if I have to get another refurb. I talked to Palm about it the rep told me I would have to send the phone in for repairs & could take up to 3 weeks for me to get it back. I don't want the same phone back, i need a new one. It's not cool to ask for someone's phone & not send a replacement.

Internet connection not working after computer wakes up from sleep. OSX Lion

After upgrading to Lion, I noticed that my internet connection doesn't work when I wake my computer from sleep. I have to turn off the WiFi connection, turn it back on and it will work. I guess this is a glitch that will be fixed later on. Just wanted to point it out. I don't know if someone else is having the same problem? I am not very happy with the upgrade to Lion, things seem to be slower, I've had several freezes requiring to reboot. I guess Lion needed a little more twicking before release. Not worth the $29.99 price tag.

I had this problem on SL and on Lion as well, and it occures for WiFi and Ethernet connections.
In fact the internet connection was not broken as I could ping the destination usin the IP (not DNS name).
In this case the problem was related to mDNSResponder task which handles all dns queries.
It was the most frequent problem in my day to day work with SL and now Lion. It was never fixed by any patch from Apple. I tried almost all voodoo including fresh install, all possible config changes - no solution.
The only version with no problems related to network was 10.5.8. All the other versions had issues of different kind (WiFi instability (lost signal), DNS problems (for wireless and wired connection) sometimes associated with machine sleep and wake up and sometimes with no reason.
QUESTION: Is your problem independent of the access point / router you connect to.
I must say networking was (and still is) the weakest part, besides the other OS X weaknesses I experienced during 4 years of OS X usage.
No problems in the same network with Linux or Windows beeing ran natively on my iMac So hardware is OK.
Software is of poor quality. Not much more to say in this matter.
I found a very interesting article dated 1996 about programming which I think is still valid.
Link to the article: http://www.fastcompany.com/magazine/06/writestuff.html
Below the fragment (with some connection to Apple)
Software is everything. It also s***s.
"It's like pre-Sumerian civilization," says Brad Cox, who wrote the software for Steve Jobs NeXT computer and is a professor at George Mason University. "The way we build software is in the hunter-gatherer stage."

My G5 goes to sleep when proccessing

Does anyone have a problem with there G5 going to sleep in the following situations, while running iDVD, while running Adobe DNG converter, creating a quicktime movie from imovie, anything that seems particularly proccessor intensive and it just goes to sleep? It seems to happen more often when I have the proccessor set to high and auto and it happens less often in reduced mode. One thing to note, even in highest proccessor mode I never see my cpu usage go over 60% Please any thoughts... should I have apple check this thing out I do have applecare.... Thanks

Perhaps something in the following sleep fact sheet will help;
A number of sleep-related issues can appear after incremental Mac OSX updates, including the inability to properly go to sleep, problems waking from sleep, and having your display go to sleep without your Mac going to sleep. The most common culprit is Bluetooth. Try these tips to fix your sleep problems.
WAKE UP
In System Preferences>Bluetooth, uncheck Allow Bluetooth Devices To Wake This Computer. If you are using a Bluetooth mouse and keyboard, you'll have to wake your Mac by pressing the power button.
FILE CORRUPTION
Your Bluetooth preference file may be corrupt-you'll need to delete it. Turn Bluetooth off, then go to the /Users/user name/Library/Preferences folder. Look for a file called com.apple.Bluetooth.plist and trash it.The OS will create a new preference file when you enable Bluetooth again.
ENERGY SAVER
If you have issues with a Mac or display that goes to sleep at inappropriate times, you may have a problem with Energy Saver. Delete the following .plist files and restart:
-/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
-/Users/username/Library/Preferences/com.apple.systemuiserver.plist--(username is your name or System Administrators name).
-/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
A restart is very important after deleting these plists. After a reboot your Mac will then generate new ones.
In some cases, running MacOS X's cron tasks-maintenance that the OS performs automatically if you leave your Mac on 24 hours a day-can resolve many sleep problems. If you don't want to leave your Mac on, you can use MacJanitor, Yasu, or OnyX free at Versiontracker.com.
Cheers!
DALE

Problems going to sleep

Ever since the 10.4.6 upgrade my Mac is having sleep problems. It refuses to sleep when told to by system preferences like it used to. I can put it into sleep mode manually and it wakes up fine. I tried resetting something or another, as recommended by Apple, by holding down the power button as I plugged in the power lead but to no avail.
I have no other users on the system and can only only really put it down to 10.4.6 update. My machine is a G5 1gig Ram 2.0ghz 17 inch.
Any ideas.
J

A number of sleep-related issues can appear after incremental Mac OSX updates, including the inability to properly go to sleep, problems waking from sleep, and having your display go to sleep without your Mac going to sleep. The most common culprit is Bluetooth. Try these tips to fix your sleep problems.
WAKE UP
In System Preferences>Bluetooth, uncheck Allow Bluetooth Devices To Wake This Computer. If you are using a Bluetooth mouse and keyboard, you'll have to wake your Mac by pressing the power button.
FILE CORRUPTION
Your Bluetooth preference file may be corrupt-you'll need to delete it. Turn Bluetooth off, then go to the /Users/user name/Library/Preferences folder. Look for a file called com.apple.Bluetooth.plist and trash it.The OS will create a new preference file when you enable Bluetooth again.
ENERGY SAVER
If you have issues with a Mac or display that goes to sleep at inappropriate times, you may have a problem with Energy Saver. Delete the following .plist files and restart:
-/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
-/Users/username/Library/Preferences/com.apple.systemuiserver.plist--(username is your name or System Administrators name).
-/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
A restart is very important after deleting these plists. After a reboot your Mac will then generate new ones.
Some, in these forums, have had luck fixing sleep issues downloading the Combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try.
Yours would be the 10.4.6 Combo update. Others reading, download the combo update that applies to you!
Cheers!
DALE

My Powerbook won't stop going to sleep!

My powerbook (randomly) goes to sleep. I can be in the middle of typing and it will (for no reason) go to sleep. Sometimes it will do this several times within a minute. Needless to say, this can be extremely distracting and annoying while working.
Any idea why this is happening?

A number of sleep-related issues can appear after incremental Mac OSX updates, including the inability to properly go to sleep, problems waking from sleep, and having your display go to sleep without your Mac going to sleep. The most common culprit is Bluetooth. Try these tips to fix your sleep problems.
WAKE UP
In System Preferences>Bluetooth, uncheck Allow Bluetooth Devices To Wake This Computer. If you are using a Bluetooth mouse and keyboard, you'll have to wake your Mac by pressing the power button.
FILE CORRUPTION
Your Bluetooth preference file may be corrupt-you'll need to delete it. Turn Bluetooth off, then go to the /Users/user name/Library/Preferences folder. Look for a file called com.apple.Bluetooth.plist and trash it.The OS will create a new preference file when you enable Bluetooth again.
ENERGY SAVER
If you have issues with a Mac or display that goes to sleep at inappropriate times, you may have a problem with Energy Saver. Delete the following .plist files and restart:
-/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
-/Users/username/Library/Preferences/com.apple.systemuiserver.plist--(username is your name or System Administrators name).
-/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
A restart is very important after deleting these plists. After a reboot your Mac will then generate new ones.
Some, in these forums, have had luck fixing sleep issues downloading the Combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try.
Yours would be the 10.4.6 Combo update. Others reading, download the combo update that applies to you!
Cheers!
DALE

Unexpectedly goes into Sleep Mode... All the time!

I've had this Powerbook for about 2 years now, and I've got some problems. About every 5 or 10 minutes, it goes into sleep mode! It acts as if I close the screen, so I wake it up by pressing the spacebar. But sometimes... pressing the space bar doesn't wake it up, not even holding the power button turns it off! I have to remove the battery to restart it! Can someone help please?
By the way, I checked "Power Save" settings in System Prefs and everything seems to be correct.

If you have issues with a Mac or display that goes to sleep at inappropriate times, you may have a problem with Energy Saver. Delete the following .plist files and restart:
-/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
-/Users/username/Library/Preferences/com.apple.systemuiserver.plist--
(username is your name or System Administrators name)
-/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
A restart is very important after deleting these plists. After a reboot your Mac will then generate new ones.
Some, in these forums, have had luck fixing sleep issues downloading the Combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try.
Yours would be the 10.4.7 Combo update. Others reading, download the combo update that applies to you!
Cheers!
DALE

Display constantly going to sleep on OSX Lion

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