Putting a device into a low-power mode where only RAM is powered to conserve power at the expense of time to resume operation

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25
votes
7answers
26k views

MBP Lock screen hotkey without sleeping?

I'd like to press a key combo to get my computer to the lock screen. In Windows the shortcut was Windows key + L. On Mac I press CMD+ALT+Power which turns the laptop off and puts it into sleep. I want ...
1
vote
1answer
317 views

OSX crashes and reboots several hours after going to “sleep” (lid closed)

I have a MacBook Pro as my work laptop. When I go home, I close the lid and take the laptop with me. Very often, the next time I open my laptop I find that the OS restarted "because of a problem". ...
0
votes
0answers
54 views

MacBook Pro intermittently won't let me login after sleep

I am occasionally running into problems where I can't login after sleep. Sometimes I open the lid of my Macbook Pro and it shows the usual login screen, but if I type my password in and click enter ...
0
votes
2answers
26 views

How to disable “turn off display after” when using Apple TV?

I have my Energy Saver->Battery->'Turn display off after:" set to 2 minutes. This setting is exactly how I want power settings to behave when I'm using the computer on my lap. However, when I hook up ...
6
votes
6answers
11k views

Macbook Air - battery drains while sleeping (but not when shut down)

My macbook air (13-inch, mid 2011) battery drains from ~100% to ~85% over night. The problem only started a few months ago. I'm currently running yosemite, but the problem started while on mavericks....
0
votes
0answers
146 views

Weird trackpad & keyboard issue with MacBook Pro E2015

I've had some issues with my trackpad and keyboard on my MacBook Pro 13 (Early 2015) for the past 3-4 weeks. After being awaken from sleep mode, they were sometimes unresponsive. At first, a couple of ...
1
vote
3answers
230 views

iMac randomly wakes up from sleep

My iMac (27-inch, Late 2012) randomly wakes up, up to 9 times a day. I'm using El Capitan 10.11.3 (15D21). A syslog | grep -i "Wake reason" shows the following many times: Apr  5 00:02:50 Nikolajs-...
2
votes
0answers
203 views

Sleep mode on Mac OS X, don't wake up again

I have a MBP 13 (OSX El Capitan 10.11.2) with two external monitors. After a while when I do nothing my MBP switch to the sleep mode. The problem is that sometime it don't wake up again when I move ...
29
votes
13answers
18k views

How can I sleep the display from Terminal?

I'd like to be able to turn my screen off from command line. I know there's the keyboard shortcut ctrl+⇧+⏏ but I want to do it from a shell script or remotely. Is there a way?
1
vote
1answer
2k views

How to disable AddressBookSourceSync in El Capitan

AddressBookSourceSync continually prevents idle sleep. I don't use address book syncing and in previous versions I used just to delete the app. However this is now prevented by System Integrity ...
13
votes
7answers
16k views

Waking display from terminal, general waking

This is a two part question. A practical, "how to" question is first, and then I ask for configuration suggestions. First, I put my displays to sleep at night, and I would like to be able to wake ...
1
vote
1answer
61 views

How to fix the time display at the top of the screen flashing?

Sometimes when I unlock my iPhone 6s 64Gb with iOS 9.2 the time display at the top of the screen flashes or the whole display at the top of the screen (signal strength time and battery) takes a second ...
0
votes
0answers
123 views

Built in keyboard and trackpad on 2015 Macbook Pro not working

A few weeks ago I started noticing that after waking my mac from sleep, or after starting it up, they keyboard and mouse (and sometimes just the mouse) would not be responsive at all. I'd have to do a ...
0
votes
1answer
65 views

How to stop my SSD “ejecting” from my iMac when in standby?

I recently purchased an SSD drive for my 2009 27" iMac to replace the DVD Drive. Everything installed fine, performance is good etc. However when the device (SSD) is put to "sleep", OS X sees it as ...
4
votes
2answers
16k views

Mac doesn't respond after sleep mode: how to Prevent this?

My mac often doesn't respond after sleep mode. What can be the reason? There are a lot of articles about what to do in this situation. But I can find nothing about how to Prevent it. Mac is macbook ...
1
vote
1answer
37 views

Set Computer to Sleep Mode for Specific Amount of Time from CLI

This terminal command sets the computer to sleep mode: osascript -e 'tell application "Finder" to sleep' How can I make the computer sleep for a specific amount of time, say 20 minutes? Do I need ...
19
votes
7answers
87k views

Put the display to sleep without putting the whole computer to sleep?

I like to use vnc on my ipad on my bed. I want the mac to go to a black screen so I can fall asleep while using the ipad, and not have to get up to shut down the mac afterwards. Is there anyway to ...
0
votes
0answers
38 views

display will not wake when using external monitor

I am using a macbook air. It worked fine until recently. As far as I know I did not change anything. There are two problematic behaviors: Lid open: when waking, the external monitor does not work....
0
votes
0answers
13 views

Why could MBP be making slow churn after RAM update?

I recently upgraded my MBP Early 2011, 2.7 GHz Intel Core i7, RAM from 4GB to 8GB. I'm running Yosemite, so I figured this was a good decision. I've noticed that my MBP now is louder than it used to ...
0
votes
0answers
49 views

Why does my Macbook occasionally refuse to log back in after sleeping?

I have a 13" Macbook Pro Early 2015 currently running El Capitan 10.11.3 (15D21). I use it very heavily just about every day for coding, web browsing, etc. I rarely reboot it, basically just to ...
10
votes
2answers
2k views

Mac Pro loses network connection after wake from sleep since Yosemite upgrade

I have a really strange issue since i updated to Yosemite. When i wake up my 2012 Mac Pro, the network connection is totally lost. Output from dmesg (sorry, couldn't copy/paste at this time): - Nic ...
0
votes
0answers
19 views

How can I auto resume background jobs upon login

I'm running a bash script over several days. When I put the laptop on sleep and log back in, the script is stopped. I have to send the kill -CONT message to the process for it to resume. Is there a ...
0
votes
1answer
182 views

Yosemite - Require password after sleep is disabled

I am trying to prevent the system to always ask for the password when it wakes up from sleep. I have a MacbookPro with Yosemite 10.10.5. User has admin rights and password different than the ...
1
vote
1answer
27 views

Put computer to sleep and have it ask for password on wake

How do I put computer to sleep and have it re-awake asking for a password? I'm looking for a terminal command to do this. I tried pmset sleepnow did not work.
1
vote
2answers
34 views

2015 MacBook Air display awake while lid closed

I want my late 2015 MacBook Air to remain awake when the lid is closed. I have tried Caffeine, Stay Awake, and Theine, as well as changing my power saving settings to 'never' but nothing seems to work....
0
votes
0answers
19 views

How to disable sleep on lid close when security is set to force password on wake

I've seen many instances of solutions using pmset noidle and caffeinate -u -t 60 These don't work. When I close the lid and reopen it within 10 seconds the login prompt appears again. And I want ...
5
votes
2answers
7k views

OS X Mavericks wakes my Mac from sleep every hour or so

Ever since upgrading to Mavericks, it looks like my Mac Mini wakes from sleep about once an hour or so. In the Console, I get the following message: Oct 30 02:12:06 gary-mac WindowServer[93]: ...
3
votes
3answers
2k views

How do I stop my MacBook Pro from randomly freezing when trying to go to sleep?

My 2011 MacBook Pro has been having a problem occasionally where I put it to sleep, but it continues to run. Later when I go use it again, I realize that it was on the whole time (usually inside my ...
2
votes
2answers
189 views

Why does my iMac go to sleep while I am using it?

My iMac (2014) running OS X 10.11.3 goes to sleep every now and then several times a day while I am using it. I do not lose any work, but it is very annoying. I do not have any hot-corners for sleep,...
1
vote
1answer
31 views

Trying to wake my Mac using Apple / Power Manager Script triggered by Folder Actions

I've been trying to tweak the following script to achieve this. (original script) tell application "Power Manager Scripting" tell workshop set myEvent to make new event with properties {id:"...
3
votes
3answers
24k views

How do I prevent my iMac from sleeping while media is being played or streamed?

I know this problem has been around for a while. With the release of Mountain Lion Macs got the bad habit of falling to sleep when they are not used by a human. My iMac falls to sleep when I walk ...
2
votes
0answers
216 views

Intermittent Keyboard Failure when Waking from Sleep

So after a pretty catastrophic failure (see: Yosemite Upgrades: Lost and Broken User Accounts ) I have reinstalled Yosemite on my old tower-style Mac Pro and begin the work of restoring from backups. ...
59
votes
7answers
71k views

Is there any way to set a MacBook Pro to not sleep when you close the lid?

The most common use case I have for this is when I'm playing music over AirTunes, but don't want an open laptop laying around. Or when I'm syncing or downloading something. This isn't the same as ...
0
votes
0answers
79 views

Login Screen Not Appearing on External Monitor in Clamshell Mode

When in clamshell mode, locked, and with display asleep, I expect to be able to wake the display and see the login screen on my external monitor by moving the mouse or typing. Instead, the screen ...
45
votes
6answers
32k views

“powerd” process uses a lot of CPU

Oftentimes, after I wake my Mac from sleep, powerd (which is the power management daemon? Which in particular deals with sleeping the Mac and waking it?) uses high CPU, usually around 25% to 50% on my ...
2
votes
0answers
149 views

Wake On Lan Sleeping Mac Issues

I am having trouble with Wake On Lan for my Mac. I am trying to wake it over the internet from my phone so I can log in to TeamViewer and control it remotely. I don't know if it is my router that is ...
3
votes
5answers
256 views

ICloud Password prompt

On my Yosemite OSX machine I often get an ICloud prompt after awaking from sleep or after a reboot like this what program is causing this? Is it a valid Apple one or one trying to get my password? ...
12
votes
8answers
2k views

Mac Mini 2011 - monitor wakes up messed up

I have an Mac Mini from 2011. Sometimes (I would say 80% of the time) when I wake up the monitors, after they've been sleeping, my main monitor (a Benq G2220HD 22″, connected via DVI → Mini ...
1
vote
2answers
3k views

My Mac isn't locking when I put it to sleep

If I go  -> Sleep or even hold the power button, my Mac goes to sleep but when I go to wake it up I immediately see the screen I'd put it to sleep on. Before I was asked for my password again upon ...
0
votes
3answers
89 views

Is it normal for MacBook Pro CD/DVD drive to makes noise on wake after long sleep

Every time I put my MacBook Pro (13in, mid-2012) to sleep and shut the lid, then wait at least 20 mins then open the lid and wake it up, my CD/DVD drive makes an odd sound as if it thinks there's a ...
0
votes
1answer
376 views

Dell P2715Q Needs “Detect Displays” after MBPR 15" goes to sleep

So I have my new Dell P2715Q connected to a Thunderbolt port on my MacBook Pro Retina 15" Mid-2015 using the supplied DisplayPort cable, in SST mode. When I plugged it in the first time, it worked ...
0
votes
1answer
53 views

Best practices for Macbook Pro usage [duplicate]

I have a new Macbook Pro and I want it to last and keep a healthy battery. How do I best ensure this? If I am using it, do I let it discharge, or leave it plugged in? If I am discharging it / ...
1
vote
2answers
760 views

Chrome prevents Macbook from sleeping

Chrome prevents my Macbook from sleeping. See screenshot: Some websites say it might be due to a chrome extension, but I've installed no new extensions in the last two weeks (I've only had this ...
0
votes
0answers
88 views

Fixing black screen and login issues

Recently I've been having trouble with my Macbook Pro crashing seemingly at random. This typically happens when I try to wake the machine from sleep (if it matters, I usually cause the computer to ...
0
votes
0answers
25 views

Do cronjob run when the computer is asleep?

I have a macbook air running El Capitan. I wrote a few cronjob that appear to be running even when the computer is asleep. Is this correct, or is my computer not really in a sleep state?
0
votes
2answers
239 views

MacBook Pro won't go to sleep when lid is closed

I have a Late 2011 MacBook Pro and I just got it back from the repair shop (mainboard was swapped). I immediately installed OS X El Capitan (before it was Yosemite) and found that when I closed the ...
0
votes
1answer
87 views

WiFi Not staying connected after sleep-wake

Background I am having keychain issues since upgrading to El Capitan, Described below. Also working with Apple support since 2 weeks and i have no hope for a solution OS X El Capitan keychain login ...
2
votes
1answer
948 views

Retina Macbook Pro doesn't hibernate

I have bought a 13 Retina Macbook Pro -my first Mac, just a couple of days ago and I found something odd. Apple claims that after an hour or so of sleep, the Mac should go to deep sleep -AKA ...
0
votes
0answers
22 views

Where can I find a list of IOPMSleepSystem error codes?

This is kind of related to my last question. I am having an error that (I think) prevents my computer from sleeping, and it says IOPMSleepSystem gave me an error with code -536870174. Specifically: ...
0
votes
0answers
74 views

Sudden, auto-shutdown while in sleep: where to look for the culprit?

My MacBook has been brutally shutting down by itself while in sleep. It always happens a few hours after shutting down the lid, right when switching to the StandBy sleep mode, right at the following ...