Macbook won't timed sleep with Netflix open

Hey,
Having an issue with my white Macbook 5,2 not going to sleep (based on energy saver preferences) whenever I leave Netflix open. Searching around, it seems that many people want this to be the case -- if I have the power adaptor, this would be preferable, but if I am just on battery, I'd much rather it go to sleep after an hour or so... Any help would be appreciated!

I spoke to Apple yesterday and they have proposed a new battery and also a check on the machine.
I will receive the new battery next week and I am planning to hang on to the old until I have checked the batteries are actually different.
Funny enough I just calibrated my current battery again and the system did go to sleep at low battery but guess what?
It went when the system was at 0% charge, I believe that the settings in the SMC are a bit optimistic and assume a battery in perfect health. If you have a non 100% healthy battery is likely that at 2-4% your macbook dies.
I would think that if Apple gives a setting like windows hibernate at X % where you can set this threshold the problem would be solved.
I agree the system must be designed for users that are not smart but it also has to be realistic on how the same users are going to keep the battery.
I will post again after I have tested the new one.
Next step if that is not solved is to take it to an Apple repair center, the customer support has proposed that but I said I first wanted to check the new battery

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MacBook Pro will not sleep with lid open, but now solved, very odd.

I bought a 2.4 GHz MBP about a week ago, as soon as I got it home I reinstalled the OS and zero-out the drive. Everything appears to work perfect until I noticed that the MBP will not sleep with the lid open.
But...
Close the lid, it sleeps.
Select sleep from menu, it sleeps.
Let the battery drain down with lid open, laptop sleeps.
Whent thru painful troubleshooting process, reseting things, permissions, what is installed, running programs...blah blah blah, nothing no difference.
So, backup the drive using superduper to external firewire and reinstall all over again, just like i did when i first got home, except I did not let it connect to the internet. I went thru and setup everything then connected and performed each update, one at a time looking for what might hinder the sleep process.
And the result is a big fat zero.
Same install process as i did the first time, and same updates as the first time. But now the laptop sleeps perfectly.
Gotta love computers, so very consistant
Just my .02 input on this wacky issue.

Try trashing these 3 .plist preferences and reboot. Reset your Energy Saver preferences.
HD > Library > Preferences > SystemConfiguration > com.apple.AutoWake.plist & com.apple.PowerManagement.plist
User > Library > Preferences > com.apple.systemuiserver.plist
Also, look at your system logs in your Console application and see what is causing the "wake event." It could be hardware-related. Do you have any external devices attached, such as a mouse or hub? I've seen Bluetooth problems with wireless BT mice.
Dave M.
MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG Podcast
Creator of 'Mac611 - Mobile Mac Support' (designed exclusively for an iPhone/iPod touch)

2011 i5 MacBook Air unable to sleep with lid open after upgrading to 10.7.1

Hi,
After upgrading to 10.7.1 I noticed my 2011 i5 MacBook Air being unresponsive to wake events. Per instructions I saw from other posts I pointed the Startup Disk to my main partition. Shortly after (though I'm sure unrelated to Startup Disk) the Energy Saver preferences I noticed were no longer being adhered to. I can make my machine sleep through
1. Apple -> Sleep optoin
2. Closing the lid
However, when the lid is up the Energy Saver options are not being adhered to. I have tried
1) Resetting PRAM
2) Resetting SMC
3) Removing SystemConfiguration folder
4) Turning off auto update on all apps running
5) Poring through system logs
Interestingly enough, I looked through all system logs via Console and noticed during the time period in which sleep should be triggered NO EVENTS were being written to the system logs.
Currently I am using the PleaseSleep app to get my computer to sleep properly. Please advise!
- Frank
P.S. I did do one thing was put a refridgerator magnet to the computer to "simulate" sleep but I doubt it would cause this broken behavior.

Uninstall Growl. See:
Uninstalling Software: The Basics
Most OS X applications are completely self-contained "packages" that can be uninstalled by simply dragging the application to the Trash. Applications may create preference files that are stored in the /Home/Library/Preferences/ folder. Although they do nothing once you delete the associated application, they do take up some disk space. If you want you can look for them in the above location and delete them, too.
Some applications may install an uninstaller program that can be used to remove the application. In some cases the uninstaller may be part of the application's installer, and is invoked by clicking on a Customize button that will appear during the install process.
Some applications may install components in the /Home/Library/Applications Support/ folder. You can also check there to see if the application has created a folder. You can also delete the folder that's in the Applications Support folder. Again, they don't do anything but take up disk space once the application is trashed.
Some applications may install a startupitem or a Log In item. Startupitems are usually installed in the /Library/StartupItems/ folder and less often in the /Home/Library/StartupItems/ folder. Log In Items are set in the Accounts preferences. Open System Preferences, click on the Accounts icon, then click on the LogIn Items tab. Locate the item in the list for the application you want to remove and click on the "-" button to delete it from the list.
Some software use startup daemons or agents that are a new feature of the OS. Look for them in /Library/LaunchAgents/ and /Library/LaunchDaemons/ or in /Home/Library/LaunchAgents/.
If an application installs any other files the best way to track them down is to do a Finder search using the application name or the developer name as the search term. Unfortunately Spotlight will not look in certain folders by default. You can modify Spotlight's behavior or use a third-party search utility, Easy Find, instead. Download Easy Find at VersionTracker or MacUpdate.
Some applications install a receipt in the /Library/Receipts/ folder. Usually with the same name as the program or the developer. The item generally has a ".pkg" extension. Be sure you also delete this item as some programs use it to determine if it's already installed.
There are many utilities that can uninstall applications. Here is a selection:
AppZapper
Automaton
Hazel
CleanApp
Yank
SuperPop
Uninstaller
Spring Cleaning
Look for them at VersionTracker or MacUpdate.
For more information visit The XLab FAQs and read the FAQ on removing software.

MacBook won't automatically sleep

My MacBook won't automatically sleep anymore. If I close the lid or command it to sleep, it will. But it will no longer automatically sleep. I've tried tons of fixes and searched for hours on the internet, but still have not found a solution. I seem to have noticed that this starting happening after I installed Windows XP via Bootcamp, so I'm guessing that the problem is related to that. Any ideas?

This is for a Mac that won't sleep.
Here is KB article HT1776 with their tips.
Mine follow;
USB devices and hubs often cause Macs to not sleep or wake quickly from sleep (notably HP printers and scanners, HP all in ones, and Cannon scanners). Disconnect all USB except for keyboard and mouse and try. If it sleeps, add one back at a time testing after each one to find the culprit.If you've set your Mac to receive faxes, it may not be able to sleep. It might also have a damaged preferences file.
If you use your Mac for faxing, open System Preferences. click Print & Fax, click the Faxing tab, and uncheck the Receive Faxes On This Computer box.
If that doesn't work or you've never faxed on your Mac, go to Finder/Hard Drive /Library/Preferences/SystemConfiguration and delete the com.apple.PowerManagement.plist and com..apple.AutoWake.plist files (if your Mac asks, type your admin. password).
If the latter file isn't present in the folder, go to user name(probably your name)/Library/Preferences, delete the com.apple.systemuiserver.plist file, and reboot your Mac.
Hope this helps!
P.S. One member here reported this (Michael Gleason);
"I have had this problem with my IMac G5. It is surprisingly irritating. LaCie's Silverkeeper backup software was the cause. By default it gave itself permission to wake up the computer to check if a backup was needed. Do you have this or a similar program installed which has scheduled activities including wake-up permissions as an option?"
Dave Hamilton provided this link, xlr8yourmac.com, to a member, which addresses failure of deep sleep with some users that updated and added new FireWire and USB card.
Also, here is Apple KB article TA2469 about PCI cards and sleep.
tomhorvat adds this; After few days of messing around I found out that I had desktop background (wallpaper) set to change every 1 minute.
After unchecking "Change picture..." in system preferences (under Desktop/Screen saver), my powerbook went to sleep all by itself.
Tristan Currier noticed this; "I have a Canon printer(shared) and my imac would not sleep. I opened up printer/fax in system prefs and noticed it said the printer was in use when it was off. Opened up the printer queue and noticed about 7 pending documents. Deleted them all and now it sleeps.
Check the printer queue!"
Allan Jones says "sometimes there is Network activity: launch System Preferences > Energy Saver > "Options" tab and uncheck "Wake for Ethernet network administrator access."
Good Luck!  DALE

10.9 will not sleep with apps open

SO frustrating. I have to close all my apps to get the Mac Pro tower to remain in sleep mode. Otherwise it will just pop back on again. I have read and tried some of the less technical work arounds but it still does this. Suggestions? Besides going back to an older OS, I mean.

Open System Preferences > Energy Saver
Click: Restore Defaults
Restart your Mac.
Try putting the Mac to sleep with apps open.

MacBook won't stay on with Battery installed

Hi,
I spilled a little bit of soda on the left side of my MacBook a few days ago. I took the battery out and let it dry for a few days. Now my MacBook won't stay on, it thinks that the battery is empty and just shuts itself down even though it is fully charged. I removed the battery and turned it on while connected with the AC adapter and it seems to be working fine. It only seems to have problems when the battery is inserted. Any suggestions on what I should do?
Thanks,
Robert

Hi,
I have been looking into this more carefully, it seems that my MacBook will no longer detect the battery. I reinstalled the battery and it will now stay on while on AC power. There is an X on my battery icon, despite the battery being installed and fully charged. Below is my power information:
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Charge Information:
Charge remaining (mAh): 0
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 0
Health Information:
Cycle count: 0
Battery Installed: No
Amperage (mA): 0
Voltage (mV): 0
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AC Power:
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Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 10
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Wake On LAN: Yes
Display Sleep Uses Dim: Yes
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Disk Sleep Timer (Minutes): 10
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Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
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AC Charger Information:
Connected: Yes
Charging: No
I would appreciate it if anyone has any suggestions.
Thanks

MacBook Pro mid-2012 sleeps with 30 sec delay

Hello Community,
I've set pmset hypermode to 0 to make macbook faster go to sleep and it worked perfectly. Normally "time-to-stop" was about 3-5 seconds even with running VM (I've used parallels desktop 8). After I upgraded it to version 9 the problem occur. Every time when I close the lid or press sleep button it takes around 30 seconds to stop my mac. I checked pmset log and it says: "PMConnection: Response from CMacPowerHelper timed out (powercaps:0x0)" with delay 25 sec, which is why it takes so long.
And now the questions: what does this helper perform and why it prevent my mac to stop when VM is running?
Also how to resolve this issue and come back to normal 3-5 seconds "time-to-stop"
I've raised the support request with Parallels, but they aren't very goot at solving really technical issues.
Guys, any advise would be much appreciated!
Power managememnt log:

Hi I have parallel 9 as well and I am experiencing probably the same problem. Even if all the applications are closed in rMbp early 2013 8GB Ram I have to wait 30 sec until my it go to sleep. The screen is closing but i can still hear the hard drive and I have to wait for the sleep to be completed in order to wake it up again. I did a restore and the time to go to sleep was 4-5 sec now with parallel is back to 30.

Not Reliably Going To Sleep With Lid Open?

I've had my new MacBook Pro for a few days. I think it is absolutely brilliant. However, last night I left it running on battery with the lid open and returned to find the battery dead. It will go to sleep if you shut the lid or select sleep from the Apple menu.
I called Apple and they talked me through numerous procedures including resetting the SMC, PRAM, deleting various plists and finally a permissions repair on the disk. The latter seemed to make it work.
However, I've found this evening that it still does not reliably go to sleep with the lid open and I really can't work out why. It doesn't seem to be linked to a particular application. Sometimes even if I only have the finder running it will not go to sleep.
When it does work, the computer takes 2-3 minutes to go to sleep after the display sleeps.
I'm running Snow Leopard with all the available updates.
Please can anyone suggest what I might do next?

Hi,
I've been struggling with same issue too, idle timer sleep just didn't work most of the time. I am a recent convert from Windows world and there were never issues with PC to go to sleep after idle timeout. With SL it was not so easy.
However, I found a reason (Or two actually) why it was not sleeping, after going through my applications and web pages one by one.
One of them is flash plugin in browsers, if I had any page open with flash, the computer would not sleep. Apparently flash somehow makes SL think it is not idle. Solution to this was to set up flash blockers to browsers. Which is not bad thing overall, flash is mostly adverts anyway on the pages I visit.
Other one was facebook, even with flash disabled. Something in their real-time updating of statuses again prevents sleeping. I tried disabling java and java script too, it might help but then facebook does not work at all. Solution is to always close facebook after using it. Not a really good one, it's easy to forget running.
Hope this helps!

Mac Pro does not sleep with lid open

Hi this was the original post I posted a couple days ago.
"Hi All,
I have had a problem with my mac book pro, it does not sleep while the screen is left open. The way I used to be able to tell if the mac is sleeping is the light on the front should flash as it does when the screen is closed. Here is what has happened in the past.
1. The original hard drive failed and was replaced with a 500gb
2. I have had the top case replaced as the mac book pro would not sleep with the screen closed
3. A clean install with OSX 10.6.8
After doing all this, the mac is still having the same issue.
When the screen is left open, I can hear the fans whirring away and the battery is drained as if I am running an intensive program. I can leave it all night with the screen up and wake up to the battery being completely dead. It usually takes about 3 hours or so. (105 cycles on the battery). The settings are set so that the screen and mac hibernate after 1 minute, and all applications are closed with wi-fi, etc turned off.
When my fathers and my brothers mac book pro is left open, the light on the front of the case flashes.
I have been to the apple store repeatedly and they are adament there is no issue with the mac. They did all their "tests" and the hardware was tested as "good".
Thanks for any help!
Chris"
The problem was solved with the following:
1. Deleting Login Items
2. Turning off blu-tooth
3. Unchecking "wake for network access"
Sources given:
http://support.apple.com/kb/TS3402
http://support.apple.com/kb/TS4167
However, the same problem came back last night.
Any ideas what is causing this?
Thanks,
Chris

I forgot to mention that I followed the same instructions that did solve the problem.
The things I tried were:
1. turning off wi-fi
2. closing all apps
Doing this however did not solve my problem either.
Chris

Won't automatically sleep with energy saver

Brand-new iMac will not automatically sleep, but will sleep on demand. Display sleeps, but hard drive stays on.
I'm not completely computer-savvy, but I've searched through other threads regarding this issue and tried the following:
- deleted com.apple.PowerManagement.plist
- reset SMC
- tried with a new admin account
- reset PRAM/NVRAM
- disconnected peripherals
- repaired file permissions
- Bluetooth settings: changed to not discoverable, turned off bluetooth sharing. I still need it on though bc my KB and mouse are wireless
Not really sure what the Console/system log stuff is, but I looked in there and saw this over and over:
+May 23 09:43:45 greatwhitehope com.apple.launchd[1] (com.google.keystone.daemon[394]): bootstrap_register() erroneously called instead of bootstrapcheckin(). Mach service: com.google.Keystone.Daemon+
+May 23 09:43:45 greatwhitehope com.apple.launchd[1] (com.google.keystone.daemon[394]): Exited with exit code: 1+
+May 23 09:43:45 greatwhitehope com.apple.launchd[1] (com.google.keystone.daemon): Throttling respawn: Will start in 10 seconds+
So I turned off Google Notifier. Didn't work.
It works with Please Sleep... but I just got this computer and it kind of ****** me off that it won't auto-sleep.
Can anyone please help or offer other suggestions?

I have the same problem and I've already contacted Apple about it. We've tried the same solutions as listed above and some more. Finally I had to record my system info during the problem (with Capture Data) and I've sent it to Apple.
The good news is that they know the problem and they are working on a solution.
The bad news is that I've bought my computer in February, I immedeately reported the problem, and there does not seem to be any progress. I contacted Apple again early May and they told me I should wait
I'll try the Sleep apps that are suggested above because it's extremely irritating the have your computer awake with fan and all when you want to sleep yourself.

When my MacBook is put to sleep with Safari running, I get an error

When I put my MacBook to sleep with Safari running, when I wake it up it has an error telling me to restart my computer. I have only had this two weeks and have only installed Flash and iWork. Any tips?

If your Mac is still that new, then you have phone support and Genius Bar support for free. Contact Apple.
If the message looks like this:
http://support.apple.com/kb/ht1392
You're having a kernel panic, and there are many possible causes.

MacBook won't go to sleep with Lid opened

I have set the Computer Sleep time to 5 minutes. Its connected to a power source. There are no running tasks and a few apps are loaded in memory (Mail, Safari, iChat, iTunes, Numbers and QT X). No devices are connected. It simply won't go to sleep.
It does when the lid is closed but not otherwise as it should after 5 minutes of inactivity. The Display sleep slider is also set on 5 minutes and that doesn't work either.
Neerav

I have a 13 inch macbook white, and recently when I go to put it to sleep, a message pops up saying you must restart your computer and it forces me to push the power button to shut it off. Then if I leave it alone to go to sleep on its own, when I come back to it, it won't come back on so I have to manually shut it down again. When I do fully turn the computer back on, it says that the Mac software quit unexpectedly. Does anyone know why it is doing this all of a sudden?

Macbook won't go to sleep with lid open

Lately my macbook has stopped going to sleep despite the energy saver settings stating computer sleep is set at 10 minutes. I've tried an SMC reset, but no avail. I've removed my USB 2.0 HDD to see if the issue was potentially related to it, but no changes. I've even tried to recalibrate the battery and it has done nothing for me.
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Interesting. Like I said in the original post, I removed all USB/FW devices from my laptop and still experienced the problem. I typically have a Seagate FreeAgent Go hooked up to my Macbook to store all my multimedia (movies, files, etc). The drive is formatted as NTFS so I can use it on my Windows partition and other Windows boxes. I use Paragon NTFS to allow R/W access to the external drive on OS X.
My sleep situation has been fixed by uninstalling Paragon NTFS. I figured removing the NTFS drive might expose the problem, but it took fully removing all the Paragon disk drivers for my Macbook to return to it's sleep schedule. This is slightly inconvenient but I can find another NTFS driver solution and see what happens.

MBP won't go to sleep with lid open with Lion OS

I had this same problem with Snow Leopard and I fixed it somehow, but when I upgraded to Lion my laptop won't go to sleep when my MBP lid is open. However, it does go to sleep when I close the lid. When the lid is open, the display goes black, but the light doesn't pulsate. If my power adapter isn't plugged it, it completely drains the battery. I've unchecked "wake for network access", turned off bluetooth, and turned off sharing, but it still won't go to sleep when the lid is open.
Anyone having similiar problems? Anyone fixed this problem?
Please help. Thanks!

I have the same problem. I upgraded to Lion and now when I close the lid it won't sleep.
Also my CPU and Virutal Memory are constantly maxed out and I'm not doing anything different then I was doing before Lion was installed. In Activity Monitor its showing my System at 40-50% and my user at 40-50% constantly.
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Why Does Retina MacBook Pro (2012) Suddenly Hibernate With Lid Open?

I'd like to know why my Retina MacBook Pro (2012) at certain times suddenly go into Hibernate mode when I'm actively using it with the lid open and what I can do to prevent this.
I know this is hibernate because of what I see in the Console logs and the fact that I can't trigger a wake by using the keyboard/trackpad/mouse. Only the power button causes it to wake up.
This usually happens when I wake it from sleep and plug it into an external monitor via HDMI to HDMI connection.   The lid is open and I use both displays.    This happens about 30 seconds to a minute after I wake from sleep. At the time I'm not plugged into the power supply because I believe it's generally a good idea to let the batter drain and the recharge it. The last time this happened it was about 35% to 40% charged.
Hardware Overview:
Model Name:    MacBook Pro
Model Identifier:    MacBookPro10,1
Processor Name:    Intel Core i7
Processor Speed:    2.6 GHz
Number of Processors:    1
Total Number of Cores:    4
L2 Cache (per Core):    256 KB
L3 Cache:    6 MB
Memory:    8 GB
Software:
OS X Yosemite (all latest updates installed)
{some 3rd party software}
Let me know if you need more information.
For the gory details of what I see in system.log, read on:
This is about the time the hibernate happens. I've replaced my laptop's name with {COMPUTER NAME}
Mar 20 18:29:26 {COMPUTER NAME} identityservicesd[375]: <IMMacNotificationCenterManager: 0x7f87d510c9e0>: notification observer: com.apple.iChat   notification: __CFNotification 0x7f87d5210a90 {name = _NSDoNotDisturbEnabledNotification}
Mar 20 18:29:26 {COMPUTER NAME} identityservicesd[375]: <IMMacNotificationCenterManager: 0x7f87d510c9e0>:    NC Disabled: NO
Mar 20 18:29:26 {COMPUTER NAME} identityservicesd[375]: <IMMacNotificationCenterManager: 0x7f87d510c9e0>:   DND Enabled: YES
Mar 20 18:29:26 {COMPUTER NAME} identityservicesd[375]: <IMMacNotificationCenterManager: 0x7f87d510c9e0>: Updating enabled: NO   (Topics: (null))
Mar 20 18:29:26 {COMPUTER NAME} WindowServer[218]: device_generate_desktop_screenshot: authw 0x7fba81c2e940(2000), shield 0x7fba81c35bd0(2001)
Mar 20 18:29:27 --- last message repeated 1 time ---
Mar 20 18:29:27 {COMPUTER NAME} WindowServer[218]: device_generate_lock_screen_screenshot: authw 0x7fba81c2e940(2000)[0, 0, 1920, 1080] shield 0x7fba81c35bd0(2001), dev [1920,1080]
Mar 20 18:29:27 {COMPUTER NAME} com.apple.xpc.launchd[1] (com.apple.xpc.launchd.domain.user.502): Service "com.apple.xpc.launchd.unmanaged.loginwindow.72" tried to hijack endpoint "com.apple.tsm.uiserver" from owner: com.apple.SystemUIServer.agent
Mar 20 18:29:30 --- last message repeated 1 time ---
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: PM response took 4741 ms (30, powerd)
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: ARPT: 1632.007298: AirPort_Brcm43xx::powerChange: System Sleep
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: ARPT: 1632.007302: wl0: powerChange: *** BONJOUR/MDNS OFFLOADS ARE NOT RUNNING.
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: [0x1b014fb000, 0x19000000]
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: [0xd8ec7000, 0x19000000]
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: [0x1369ac0000, 0xe000000]
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: [0x0, 0x0]
Mar 20 18:29:31 {COMPUTER NAME} kernel[0]: hibernate image path: /var/vm/sleepimage
And when I wake it up by repeatedly pressing the power button:
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: hibernate_newruntime_map time: 0 ms, IOHibernatePollerOpen(), ml_get_interrupts_enabled 0
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: IOHibernatePollerOpen(0) 19 ms
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: hibernate_machine_init reading
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: PMStats: Hibernate read took 355 ms
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: hibernate_machine_init pagesDone 212628 sum2 2c66736a, time: 355 ms, disk(0x20000) 447 Mb/s, comp bytes: 57749504 time: 55 ms 985 Mb/s, crypt bytes: 157388800 time: 67 ms 2228 Mb/s
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: Wake reason: EC.PowerButton (User)
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: vm_compressor_fastwake_warmup (7450 - 12878) - starting
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: Previous sleep cause: -60
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: Previous shutdown cause: 5
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 0 us

This happened again at about 31% power, again unplugged.   Previously, I had plugged in the power before pressing the power button, but this time I pressed the power button before plugging in. The display showed me the out of power icon. Only on plugging it back in was I able to power up the laptop again.
Is it possible there's a bug either with the displayed power or how remaining power is detected?

Macbook won't timed sleep with Netflix open

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