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10.4: Disable Safe Sleep for faster sleep on lid close | 26 comments | Create New Account
Nov 30, 2019 Adjust auto sleep time on Mac OS X, Most of the folks are wondering about why I make auto-sleep or showing a black screen when he/she does not continuously access Mac for a few minutes. In a technical manner, we can say it’s the power-saving mode or auto logoff for the security reason. Available on the Mac App Store for 99p here, this little utility will prevent your Mac from going to sleep. Amphetamine A free download from the Mac App Store here, Amphetamine keeps your Mac.
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Hello,
Apple has a tip about putting your computer into sleep mode very fast:
http://www.apple.com/pro/tips/quicksleep.html
'Just press Command-Option and then hold the Eject button for about 2 seconds and Zzzzzzzzzzzzzz. It doesn't get much faster than that.'
Does that mean, this key combination puts you MacBook into sleep instead of deep sleep?
Apple has a tip about putting your computer into sleep mode very fast:
http://www.apple.com/pro/tips/quicksleep.html
'Just press Command-Option and then hold the Eject button for about 2 seconds and Zzzzzzzzzzzzzz. It doesn't get much faster than that.'
Does that mean, this key combination puts you MacBook into sleep instead of deep sleep?
Afraid not - still puts it in deep sleep. Good tip, though!
that key combo is obvioulsy not designed for laptops since it just wakes up immediately after sleeping since the lid is open.
Not mine. It stays asleep.
ditto!
That is also the case with my TiPB 867. The computer immediately wakes up again after the sceen goes dark. Pity, because it is a neat tip and it would be one that I think I would adopt.
Using 10.4.7 if that makes any difference.
Using 10.4.7 if that makes any difference.
I always put mine to sleep before closing the lid, so that doesn't even make any sense. Free accounting software for mac south africa 2016.
If you have an Apple remote, holding down the Play/Pause button for about 5 seconds will also put it to sleep.
To have safe-sleep turned off by default, so that it doesn't waste part of my battery everytime I close the lid, and also be able to enable it once for the next sleep when I need it. Perhaps a command run from the terminal, or holding down option when pressing Sleep on the Shut Down prompt.
Or even a setting in system prefs to only use safe-sleep when the battery has less than a certain % left. Extra cautious folks could crank the number up to 100%, and I'd leave it around 10%.
Either of these would be fine. :)
Or even a setting in system prefs to only use safe-sleep when the battery has less than a certain % left. Extra cautious folks could crank the number up to 100%, and I'd leave it around 10%.
Either of these would be fine. :)
10.4: Disable Safe Sleep for faster sleep on lid close
What the reasoning for the nvram command? https://raceturbo.weebly.com/what-is-the-mac-reviver-app.html. I disabled my safe sleep purely with the first pmset line.
I disabled mine because safe sleep writes the entire contents of RAM to disk *unencrypted* -- even if you use FileVault and/or encrypted swap. There's been reports around the web of people finding their password in the safe sleep file.
I disabled mine because safe sleep writes the entire contents of RAM to disk *unencrypted* -- even if you use FileVault and/or encrypted swap. There's been reports around the web of people finding their password in the safe sleep file.
10.4: Disable Safe Sleep for faster sleep on lid close
Just do the following
sudo strings /var/vm/sleepimage | grep LOGIN
This is not great.. obviously you would need root access or have sudo access as the file is only accessible by root. Still, it is not great to have your password unencrypted on disk even if it is only accessible via root.
sudo strings /var/vm/sleepimage | grep LOGIN
This is not great.. obviously you would need root access or have sudo access as the file is only accessible by root. Still, it is not great to have your password unencrypted on disk even if it is only accessible via root.
10.4: Disable Safe Sleep for faster sleep on lid close
Actually all you need is to boot it into target disk mode. And of course root password can be reset with Disk Utility. (I couldn't run strings on mine, it complained about lack of memory.)
10.4: Disable Safe Sleep for faster sleep on lid close
I tend to forget these little tricks when I need them. I can see the rationale for having and not having the hibernate mode. I think we should be able to choose when appropriate. Here is a virtually untested script:
If you care about your privacy, don't use Safe Sleep
Disabling Safe Sleep should be the first thing you do on any new Mac. It writes your passwords and everything else in memory out to disk in the clear, where they're trivial to recover. It's appalling that Apple enables this by default and doesn't give naive users any warning of the risk, even when they turn on FileVault. Safe Sleep completely negates the effect of FileVault and most other forms of encryption.
10.4: Disable Safe Sleep for faster sleep on lid close
Hmm.. I disabled safe sleep about a month after I bought my Macbook Pro. However I did not run the second command (nvram ..), just the first one (pmset ..). My laptop is obviously not going into safe sleep - what does that second line do, exactly?
10.4: Disable Safe Sleep for faster sleep on lid close
This tip doesn't work on my MacBook for some reason. After entering both strings successfully and rebooting, it still takes 20-30 seconds to sleep. Any idea what would cause these commands to not work? (I'm running a Black MacBook with 2Gb RAM)
10.4: Disable Safe Sleep for faster sleep on lid close
Try removing the sleepimage file and seeing if it reappears on the next sleep. This will tell you if the delay is from safe sleep or something else.
10.4: Disable Safe Sleep for faster sleep on lid close
If you want to temporarily kill Safe Sleep, try: sudo rm /var/vm/sleepimage
As others have pointed out, this is the image file. Deleting it won't cause any problems, and has the immediate effect of disabling Safe Sleep until reboot.
I find myself doing this occasionally to free up hard drive space. A temporary solution, I know, but it gives me an instant extra 2GB free.
10.4: Disable Safe Sleep for faster sleep on lid close
May be I am wrong (I have not tried it as yet) but I think that you can do all of this with the widget Deep Sleep which was the pick of the week on Oct 16, last year http://www.macosxhints.com/article.php?story=20061018014009924
10.4: Disable Safe Sleep for faster sleep on lid close
10.4: Disable Safe Sleep for faster sleep on lid close
Try this. Even after disabling 'SafeSleep' usiing the other hints in this thread, and then actually doing 'sudo rm /var/vm/sleepimage' or even 'sudo tcsh; cat > /var/vm/sleeepimage ^D' everytime it seems that /var/vm/sleepimage comes back after a restart or shutdown! So..
sudo rm /var/vm/sleepimage
sudo ln -s /dev/null /var/vm/sleepimage
Works so far (2007-06-30 19:17 EST)
outer
sudo rm /var/vm/sleepimage
sudo ln -s /dev/null /var/vm/sleepimage
Works so far (2007-06-30 19:17 EST)
outer
10.4: Disable Safe Sleep for faster sleep on lid close
in terminal, navigate to the /private/var/vm directory
Issue the following command:
sudo rm sleepimage
You'll be prompted for your password and it'll be deleted. If you get asked if you want to override the permission settings, just type 'y' and hit return.
Good luck
Issue the following command:
sudo rm sleepimage
You'll be prompted for your password and it'll be deleted. If you get asked if you want to override the permission settings, just type 'y' and hit return.
Good luck
10.5: Disable Safe Sleep for faster sleep on lid close
This also works on 10.5 but with a caveat (that may well have been in place in 10.4, I just didn't figure it out until now).
Be aware that *any* changes you make with pmset change your active profile to 'Custom'. That means if you follow the above tip by setting hibernatemode to 0 your active profile switches to 'Custom'. Then if you switch back to one of the default Energy Saver profiles (Better Energy Savings, Normal, or Better Performance) hibernatemode is set to its value for that profile, which is 3 and will always be 3, apparently. The defaults cannot be changed.
So to take advantage of this tip permanently, your Energy Saver profile must always be set to 'Custom'.
Bit of a PITA really..
As far as I can determine, in 10.5.7, neither the OS, the Finder, Safari, Mail, Remote Desktop, Directory Utility, Terminal, nor Keychain Access store any passwords in RAM in a way that shows up as plain text in the sleepimage file. I did extensive testing and a sudo grep -a password /var/vm/sleepimage (the strings command won't run on a 4GB file) yielded nothing, even after changing my user password, logging out, logging in, restarting and updating the sleepimage file after every secure access in each app. (Note that if you want to try all this yourself, once you're done you'll need to exit your Terminal session, start a new one, and then edit out the entries in your .bash_history file which contain your password.)Be aware that *any* changes you make with pmset change your active profile to 'Custom'. That means if you follow the above tip by setting hibernatemode to 0 your active profile switches to 'Custom'. Then if you switch back to one of the default Energy Saver profiles (Better Energy Savings, Normal, or Better Performance) hibernatemode is set to its value for that profile, which is 3 and will always be 3, apparently. The defaults cannot be changed.
So to take advantage of this tip permanently, your Energy Saver profile must always be set to 'Custom'.
Bit of a PITA really..
The only time I was able to see a password show up in the sleepimage file was after running VMWare and logging into my Vista vm. That virtual machine's password showed up twice in plain text, so if you use VMWare, that may be a cause for concern although it didn't show up alongside any other strings which would identify it as a password so without knowing what it was already I doubt if anyone but an experienced hacker could fish it out. I didn't test every single app I have installed so it's possible there may be others that aren't safe to use but in general, it appears that Apple's software is not an issue. Ideally, of course, an option to encrypt the sleepimage file along with the swapfiles would be a great addition.
BTW, my Late '08 MBP (w/7200rpm HD) updates the sleepimage file in just a few seconds when I close the lid so the time and battery issues described above shouldn't be much of an issue to users of the newer models - it's pretty seamless.
The best of all possible worlds:
http://www.jinx.de/SmartSleep.html
http://www.jinx.de/SmartSleep.html
10.4: Disable Safe Sleep for faster sleep on lid close
This worked for me. Been doing the old 'open/close/open lid' routine for a while now on my black macbook (running snow leopard). This SEEMS to have solved it. I hope.
I’ve been using my MacBook Pro for almost two years now and, I must say, there are still some features that keep surprising me. Mac OS X has a lot of amazing hidden features, or simply the ones that are at least not obvious to the average user.
All the “hidden” features below are standard Mac functionality, so no additional software is required. The only thing you need (for most of them) is simply a copy of Mac OS X El Capitan.
Why do software developers ignore mac users. Also, feel free to share this list with your Windows-loving friends. Maybe it will make them think twice before buying a new Windows computer ?
1. Sign PDFs with pen, paper and a webcam
A very handy feature is Preview’s ability to sign digital documents, even if you don’t have a digital signature yet. Just sign a white piece of paper and hold it next to your webcam. This will turn your boring old-school signature into a really cool digital one.
2. Annotate PDFs with the default software
Besides signing documents, Preview also allows you to annotate them in any way you want. You can add your own text, comments, highlight text etc.
3. Built-in Mac emoji
In case you didn’t know, OS X comes with built in emoji. Like the ones you have in iOS. Simply press ctrl+⌘+space to open the special characters window and choose the one you need!
4. Quickly close or hide lots of running apps
To close a lot of running apps, simply hold ⌘+tab, keep holding ⌘ and keep “tabbing” through the apps. As soon as you reach the app you want to close or hide, press wither Q to quit or H to hide the app.
5. Preview any file with space bar
You can preview any file (even Photoshop files and videos) by selecting it and pressing the spacebar. Press it again to close the preview. While in the preview you can also press the arrow keys to change between files. This works especially great if you made tons of pictures on your last trip with your family, and need a quick way to select a few good ones to upload to Facebook.
The Space Bar Preview function also works with some video formats, that allows you to have quick glances of what’s inside the video file.
6. Dictation – type with your voice
Dictation works surprisingly well on Mac OS X. Just press the function (fn) key twice, start speaking and press fn one more time to convert speech to text.
What’s even more awesome is a feature called Enhanced Dictation. With this feature you can not only use all dictation features offline, but also get live feedback, do edits while recording, and then continue dictating your text. From my experience, Enhanced Dictation works much faster, almost instantly. You can aslo dictate longer sentences in a single go, because your Mac doesn’t need to send the audio file to Apple servers to convert it into text. Be warned, though. The offline dictation pack is around 700MB, so you’ll need to have this space available on your Mac.
To enable Enhanced Dictation simply go to your Settings > Dictation & Speech, and then check the box Use Enhanced Dictation. You’ll be prompted to download the additional files onto your machine. Once everything is downloaded, go ahead and give it a shot! You will see, that words will appear almost instantly as you speak. As a matter of fact, I have dictated this whole section of this post using Enhanced Dictation with a few edits here and there, like capitalizing letters and adding formatting.
7. Amazing screenshot functionality
- ⌘ + ⇧ + 3 Capture entire screen + save
- ⌘ + ctrl + ⇧ + 3 Capture entire screen + copy to the clipboard
- ⌘ + ⇧ + 4 Capture dragged area + save (the one I use the most)
- ⌘ + ctrl + ⇧ + 4 Capture dragged area + copy to the clipboard
- ⌘ + ⇧ + 4 then Space Capture a window +save
- ⌘ + ctrl + ⇧ + 4 then Space Capture a window + copy to the clipboard
A nice addition to this feature is the ability to share the screenshot instantly using Dropbox. After making a screenshot, Dropbox will automatically create a sharable link for you and copy it to your clipboard, that you can send to anyone instantly
8. Move selected text to create a new text file
Select text anywhere, click & hold and move it where you need to create a net text file with the selected text inside.
9. Install Windows (the real deal)
In case you need to install Windows on your Mac, there is nothing from stopping you. Your Mac can run a full installation on Windows, which is just like the real deal. Just follow the instructions on your screen to install Windows.
10. Change volume and brightness in quarter-step increments
Hold ⇧ + ⌥ and change your brightness in smaller increments for more control. Unfortunately, this doesn’t work anymore for the lowest brightness “section”. If you want to dim your screen even further at night, I suggest that you download F.lux to reduce eye stress.
The latest Mac OS versions don’t play a sound then adjusting the volume. If you want to hear it to check your sound levels, hold the Shift key (⇧) while changing it.
11. Rename and move iWork documents
Rename and move Pages, Keynote or Numbers documents right from the menu bar. To move a document click and hold the icon, then drag it wherever you want while holding ⌥. Dragon computer software for mac.
12. Quickly summarize text
Mac OS X allows you to quickly summarize long pieces of text in just a few seconds. To summarize a text first select it, right click on the selection and click on “Summarize”. To enable the summary feature, click on the app name in the status bar (“Chrome” for instance) > Services > Services Preferences… > scroll down and check “Summarize”.
13. Create more screen space with Retina Screen Macs
If you own a Mac with a Retina display you can scale the screen to create more screen space for you to work with. This feature also works if you have a second monitor connected to your main Retina device. Usually, if you’re using the “More Space” scaled resolution and connect a second screen, it will jump back to the standard setting. To get more space again, visit the settings and adjust the display scaling one more time.
If you’re changing the scaling of your Retina screen often, the quickest and easiest way for you to access the menu is by pressing ⌥ + F1 or F2 (screen brightness up/down keys).
14. Hot Corners
Hot corners allow you to trigger certain events by touching a corner of your screen. You can start and disable a screensaver, open mission control, application windows, show the desktop, dashboard, notification center or lauchpad or put your display to sleep.
To avoid triggering Hot Corners accidentally, you can assign a key to hold down to trigger an action.
To open Hot Cornets settings go to System Preferences > Desktop & Screen Saver > Screen Saver tab > Hot Corners…
App That Didn't Make Mac Os Sleep Timer
15. Open finder folder in new window
To open a folder in a new window or new tab, double-click it while holding ⌘, much like you would do in Chrome, Safari or Firefox to open a page in a new tab.
16. Disable notifications with one click
App That Didn't Make Mac Os Sleep Shortcut
Annoyed by notifications constantly bothering you? Sick of those little fly-ins in the top-right corner of your screen every time someone messages you on Facebook or sends you an annoying Gif on Slack, simply hold ⌥ and press the Notification Center icon in the menu bar (the one with three lines in the top-right corner of your screen). Once you’ve done that, you will see that the Notification Center icon is not grey instead of black, which means that you won’t see any notifications until you turn it back on.
App That Didn't Make Mac Os Sleep Free
Very useful if you’re about to present something in front of an audience or if you’re in a meeting where other people might see your screen.
OS X is awesome
App That Didn't Make Mac Os Sleep Video
As you can see, OS X has quite a lot of hidden useful features. And this list is far from being complete.
Please share your favorite Mac hidden gems with everybody in the comments!