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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0
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2answers
332 views

MacBook won't sleep

Just recently, my MacBook Pro (Mountain Lion 10.8.4) will no longer go into sleep mode. When I press Cmd+Option+Eject, the screen goes black for just a second but then comes back on. If I close the ...
0
votes
2answers
81 views

Why there are two sleep modes?

I am quite confused, I close the lid and then my mac book pro goes sleep and sometimes it seems to be in deep sleep and sometime it is not. I mean, sometimes when you open the lid, it will recover ...
0
votes
1answer
81 views

Changing Volume Without Waking Display Screen

I am using the Hot Corners feature to turn my display off on my Macbook Pro (OS X 10.8.4) when I am not using it. Oftentimes, I keep music playing and I want to change the volume while the display is ...
0
votes
0answers
59 views

Random(ish) Sleeping Habit

I have a Macbook Pro running Mountain Lion, but when I wake it up from sleep (ie, open the lid), I get about ten seconds - and then it goes back to sleep again, shutting off WiFi and Bluetooth. A few ...
1
vote
1answer
63 views

Software Recommendation for iOS app to wake Ubuntu computer with MAC Address

I have an Ubuntu media server set up. Currently, I can only wake it up remotely from a Terminal command on my Macbook Pro: alias wakeserver="cd ; ~/bin/wakeonlan -f ServerMACAddress.txt ; cd -;" ...
0
votes
2answers
85 views

MacBook Pro Hibernates Straight Away

Whenever my Mac goes to sleep when its on battery, it straight away saves its contents to the hard drive and powers off, going into a deep sleep. This gets really annoying when I walk away for 10 ...
2
votes
0answers
220 views

Weird graphics issues after waking MacBook up

After locking my Mac and waking it up a few hours later this is how it looks: Also, some of the icons look weird after restarting the system (for example not fully rendered time machine icon: ) ...
0
votes
0answers
23 views

Fresh install of 10.7 does not wake up when requested to share screen

I have a white MacBook which has been running as an Eyetv video recorder for several years with 10.6. I decided to upgrade the harddisk and then install a fresh 10.7. My problem now is that when it ...
2
votes
2answers
3k views

My MacBook Pro is not sleeping when I close the lid on battery

I purchased my macbook back in 2011, and this problem just started. When I unplug and close my computer to put it in my backpack for school, it does not sleep. I take it out and its very hot and has ...
1
vote
0answers
75 views

MacBook Pro Fails to Sleep Properly

I have a MacBook Pro 17" (late 2009 model) 2.8ghz Core2 Duo running MacOs 10.8.4 which has developed a problem going to sleep which I've been trying to isolate for the past several months. Here is one ...
0
votes
2answers
1k views

iMac wakes up without any noticeable reason

I have a iMac 27" late 2012, OS X 10.8.4 and last night it woke up from sleep-mode while I was 3 meters away from it. Nobody but me was in the room. The login-Screen was visible. After some seconds ...
1
vote
1answer
123 views

Mac mini stops blinking in standby

I'm on Macmini6,2 with current firmware and 10.8.4. When I send it to sleep it starts its on and off fading status LED thing to indicate it is now asleep. When I come back a few hours later, it is ...
1
vote
1answer
63 views

Mac Pro won't sleep any more

The past couple days, command-option-eject no longer puts my Mac Pro to sleep. I haven't done any software updates in that time. No process seems to be doing anything very interesting, or ...
0
votes
2answers
180 views

why login screen has a 2-second delay with external monitor?

On a brand new mid-2013 MacBook Air, with an external monitor ASUS PB278Q 27" 5ms WQHD (2560 x 1440), connected through a miniDP-to-DP cable, every time the computer gets back from the monitor sleep, ...
0
votes
2answers
920 views

Mac Book Air mid-2012 completely disappeared disk

I've tried to wake up my Mac Book Air from sleep today, but I got a black screen. After waiting 10 min, I decided to shut it off by holding the power button a few sec. After restarting, I had a ...
5
votes
4answers
657 views

How might text be selected while typing the login password on my Mac?

When I wake up my Mac I am presented with the login screen. I begin typing my password in the empty password text box. After typing the first few characters, the password text becomes highlighted ...
1
vote
0answers
316 views

External Display Won't stay asleep: stuck in sleep / wake loop

I have a mid-2012 MacBook Pro (running Mountain Lion) connected to an HP Pavilion 23xi external display. The external is connected via DVI-->Thunderbolt adapter, is set as the primary display and the ...
0
votes
0answers
901 views

Wake on demand not working with Apple TV 3 & iMac Mountain Lion

I have an iMac (mid 2008) with Mountain Lion. I recently bought an Apple TV 3 and read that this can enable Wake on Demand via Bonjour sleep Proxy. I've followed the guide at ...
2
votes
1answer
288 views

MacBook Air awakes in the night (when a sleep)?

Just curious, i have a old USB mouse connected to my MacBook Air. I noticed that in the middle of the night (when the cover is closed an MBA is a sleep). The LED (red) inside the mouse is turned on ...
1
vote
1answer
355 views

Retina Mac shows gray screen when waking up

This is the first time that my Retina MacBook Pro wakes up from sleep with a gray screen. After about 10-20 seconds, the MacBook falls asleep again. Some points that might be relevant: The only ...
12
votes
1answer
469 views

MacBook Pro won't wake up when stacked on another sleeping MacBook Pro

I noticed a really weird behavior on my MacBook Pro today. I have two of them at work, a 13" late 2011 (which I don't use often), and a 13" early 2011 where I put a SSD (which is my main computer). ...
2
votes
5answers
952 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 ...
0
votes
2answers
532 views

screen on my MacBook Pro goes completelly black after login

I was fixing my Mac partition by rebooting and holding CMD+S and then typing fsck -fy It found some issues and (probably) fixed them. Now when I boot into MacOS after some time the screen goes ...
2
votes
2answers
4k views

Wake Other Computers from Mac OSX

Is there a terminal command within Mac OSX that will allow me to use WOL (Wake On LAN) to wake up other computers? Windows has wolcmd, is there an equivalent within OSX? I am trying to wake a ...
2
votes
2answers
706 views

What is the difference between pmset and systemsetup sleep options?

On my MacBook Air 2013 (Mountain Lion): pmset has the following sleep settings: $ pmset -g ... disksleep 10 sleep 1 displaysleep 2 while systemsetup has the ...
2
votes
3answers
8k views

How do I stop my 2013 Macbook Air from putting the computer to sleep?

I've been fiddling with my new Haswell macbook air (with Mountain Lion), and there's a difference between the "energy saver" settings on my macbook vs my 2011 iMac. On my iMac, there's a "Computer ...
1
vote
1answer
80 views

Keyboard stays lit during sleep

When I put my computer to sleep the keyboard stays lit. It is a July 2012 rMBP. I always have to turn down the brightness manually which is really annoying. Does someone know how to fix this? Also ...
1
vote
1answer
197 views

detect powernap from the command line

I like to plug in my macbook and SSH to it from my Windows machine to take advantage of my 27" monitors, and do work in the shell and in Vim. Now i know that supposedly the machine is capable of ...
1
vote
1answer
126 views

sleepimage file size

I'm planning a clean install of my MacBook Pro with OS X 10.6 and I want to make a partition (among others) only for the sleepimage file. Here's the problem: the partition's size. I know that this ...
1
vote
2answers
993 views

Mac OS X 10.8 crashes after Thunderbolt display disconnect and sleep

At work I run my MacBook Pro 15" Retina (with Mac OS X 10.8.3 Snow Leopard) lid-closed with two Thunderbolt displays. If I disconnect the power and displays, walk to a conference room, and re-open ...
1
vote
1answer
2k views

MacBook Air screen turns off randomly

I had my MacBook Air 13" 2011 for almost 2 years now. And right from the start I kept having this weird issue: sometimes while I'm working on it, the screen (and the monitor attached via displayport ...
3
votes
2answers
2k views

Macbook Air not waking up from Suspend/Sleep with rEFInd boot manager installed

Having installed both rEFInd 0.6.10 (updated to 0.6.11) via its install.sh and Ubuntu 13.04 on another partition I can now choose on a MacBook Air to boot either MacOS or Linux. When running MacOS ...
2
votes
0answers
398 views

Logitech Wireless Mouse Non Functional After Sleep?

I have a Logitech Wireless Mouse with Unifying Receiver plugged into my iMac - and when the computer is put to sleep (cmd alt eject), after wake it will not respond to mouse movement. If the computer ...
2
votes
1answer
2k views

Why does my MBP sleep on Mountain Lion and often not wake up

I recently upgraded my Macbook Pro late 2010 to Mountain Lion (from Snow Leopard). Now it has this problem where it will sometimes sleep and not wake up. However, I hear that the computer is still on, ...
3
votes
1answer
310 views

App windows move spontaneously on display wake (2 monitors) - OS X 10.8.3

OS X 10.8.3 Mac Mini Late 2012, 2.6Ghz quad-core i7, set up with 2 displays, like this: Thunderbolt Port HDMI Port /*****************|------|**********\_______________ | ...
0
votes
2answers
137 views

Any way to know what wakes an Mac up?

Regularly while sleeping my Mac wakes up and i'd like to know if there is some kind of log of what trigged the waking. (Mouse click ? Keyboard ? WOL Magic Packet ? Something else ?) I'm on late 2012 ...
0
votes
0answers
374 views

How to select which disks are allowed to sleep?

There is an option "Put the hard disk(s) to sleep when possible" in Mac OS X's preferences: Is it possible to configure which disks Mac OS X can put into a sleepy state? For example, I want to ...
0
votes
0answers
477 views

Quickly dim the iPod Touch by hitting the power button twice on the lock screen?

I've always wondered if this was a feature or not. When I'm on my iPod Touch's lock screen, then I hit the power button twice, the first hit will sleep the device, the second will wake it again but ...
1
vote
1answer
352 views

Keeping the mac awake when running certain applications?

I need to keep my MacBook Air awake when running certain applications. But when I put the display to sleep, often the whole system suspends after a few minutes. Specifically I run Air Video Server on ...
1
vote
1answer
80 views

Finder slow after wake up from standby mode

I have 4 or 5 Network shares in my Favorites bar in the Finder. Any time the Macbook wakes up from Standby, the Finder takes forever to show up. If I remove the Network shares from the Favorites bar, ...
4
votes
2answers
6k views

How to prevent sleep while a Time Machine backup is in progress?

I'm one of those greatly suffering from the problem with TM in which the entire backup sparsebundle on a NAS gets corrupted if the Mac goes to sleep in middle of a backup operation. There's a long ...
0
votes
1answer
781 views

Wake on demand no more working

I was using Wake on Demand (not WOL) to access my mac remotely. I was able to turn in on from LAN or internet through SSH, VNC or HTTP. The problems came when I upgraded to Mountain Lion. Initially ...
1
vote
0answers
120 views

Real sleepmode WITHOUT hibernation

As the most people, I also googled after setting the hibernatemode, and found the following command: sudo pmset -a hibernatemode 0 ... which should enable the RAM-only sleep mode. I also deleted ...
2
votes
2answers
399 views

Mac wakes on scheduled power event that recreates itself every day

At 2:14 every morning, my Mac wakes. Looking at the logs, I see it's a scheduled event, but nothing shows up in System Preferences > Power. When I go to terminal, and run pmset -g sched, I see ...
1
vote
0answers
171 views

Unexpected system crash upon sleep

Last night I put my macbookpro9,1 (running 10.8.3) to sleep by closing the lid; this morning I found out it had been shutdown completely. I can't explain this behavior; my paranoid side suspects an ...
2
votes
2answers
992 views

External hard drive spinning up during sleep

Every time I close the lid on my macbook air, my external hard drive seems to spin up for about 5 seconds every 30 seconds, and this will go on continuously, even for several hours. The noise itself ...
0
votes
1answer
159 views

My Macbook falls asleep everytime that I pick it up?

If my MacBook is sitting on the desk and I go and pick it up, it will fall asleep and will not wake up regardless of pressing space bar or pressing the power button. Literally the only way I can get ...
2
votes
3answers
2k views

Is it necessary to eject an external drive before sleeping? [duplicate]

I have a question similar to a previous one about ejecting before shutting down. Is it necessary or recommended practice to eject external drives before putting a Mac to sleep, whether it be via an ...
2
votes
2answers
232 views

How to cut message “This computer has been scheduled to go to sleep automatically” and send it to sleep immediately?

It's about a Mac mini connected to a touchscreen running at public school, displaying a browser in kiosk mode. I want the Mac to go to scheduled sleep after school is over. Energy Saving PrefPane lets ...
2
votes
1answer
1k views

16GB of RAM makes MacBook Pro's fans go wild before sleep?

I recently: installed 16 GB of RAM (1600 MHz); on my late-2011 15-inch MacBook Pro; running OS X 10.7, aka Lion; with an Apple SSD drive. According to Apple my MacBook Pro only supports a ...