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Question: Macbook Air suddenly shut off, now runs slow and sound is broken

Macbook Air

OS X El Capitan v 10.11.6

Processor 1.6 GHz Intel Core i5

Memory 8GB 1600 MHz DDR3

My computer suddenly shut off during normal use while 75%+ charged. When I turned it back on, it was running unusually slow and the sound was not working (speakers and headphones both; pressing volume keys on keyboard shows a crossed-out circle where volume bar should be). Also, the battery now seems to be draining faster than usual.

I tried a hardware reboot, along with entering safe mode and making a new account to see if I could fix the sound. I also tried to reset the SMC by restarting while holding down Shift+Ctrl+Option for 10+ seconds along with the power button, but my computer did not turn on. I turned it on normally. Next step?

MacBook Air (13-inch, Early 2015), iOS 10.3.3, null

Posted on


May 28, 2018 4:54 AM in response to maxzgp In response to maxzgp

Please run EtreCheck and post the report here. This is a diagnostic test.


Click “Free Download” button, open Downloads folder, click on it to open, and then select ”Open”.

Click on the bouncing EtreCheck icon in the Dock.

“Choose a problem” from the popup menu box, and then “Start EtreCheck” in the dialog.

Click “Share Report” button in the toolbar, select “Copy to Clipboard” .

Paste it into the reply.

May 28, 2018 4:54 AM

Reply Helpful

May 28, 2018 3:41 PM in response to dominic23 In response to dominic23

EtreCheck version: 4.3.1 (4D024)

Report generated: 2018-05-28 18:35:05

Download EtreCheck from https://etrecheck.com

Runtime: 5:37

Performance: Below Average

Problem: Other problem

Major Issues:

Anything that appears on this list needs immediate attention.

No Time Machine backup - Time Machine backup not found.

Minor Issues:

These issues do not need immediate attention but they may indicate future problems.

Low performance - EtreCheck report took over 5 minutes to run. This is unusual.

32-bit Apps - This machine has 32-bits apps that may have problems in the future.

Abnormal shutdown - Your machine shut down abnormally.

Hardware Information:

MacBook Air (13-inch, Early 2015)

MacBook Air Model: MacBookAir7,2

1 1.6 GHz Intel Core i5 (i5-5250U) CPU: 2-core

8 GB RAM - Not upgradeable

BANK 0/DIMM0 - 4 GB DDR3 1600 ok

BANK 1/DIMM0 - 4 GB DDR3 1600 ok

Battery: Health = Normal - Cycle count = 239

Video Information:

Intel HD Graphics 6000 - VRAM: 1536 MB

Color LCD 1440 x 900


disk0 - APPLE SSD SM0128G 121.33 GB (Solid State - TRIM: Yes)

Internal PCI 5.0 GT/s x4 Serial ATA

disk0s1 - EFI [EFI] 210 MB

disk0s2 - C******r [Core Storage Container] 120.47 GB

disk1 - Macintosh HD (Journaled HFS+) 120.11 GB

disk0s3 - Recovery HD [Recovery] 650 MB

Mounted Volumes:

disk1 - Macintosh HD 120.11 GB (28.80 GB free)

Journaled HFS+

Mount point: /


Interface en0: Wi-Fi

802.11 a/b/g/n/ac

One IPv4 address

Interface en2: Bluetooth PAN

Interface bridge0: Thunderbolt Bridge

System Software:

OS X El Capitan 10.11.6 (15G31)

Time since boot: About 16 hours

System Load: 3.33 (1 min ago) 2.94 (5 min ago) 3.01 (15 min ago)


GatekeeperMac App Store and identified developers
System Integrity ProtectionEnabled

32-bit Applications:

3 32-bit apps

System Launch Agents:

[Not Loaded] 7 Apple tasks
[Loaded] 151 Apple tasks
[Running] 80 Apple tasks

System Launch Daemons:

[Not Loaded] 46 Apple tasks
[Loaded] 156 Apple tasks
[Running] 89 Apple tasks
[Other] One Apple task

Launch Agents:

[Other] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a2 3d420d.plist (Adobe Systems, Inc. - installed 2018-02-14)

Launch Daemons:

[Loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (Adobe Systems, Inc. - installed 2018-02-14)
[Loaded] com.microsoft.autoupdate.helper.plist (Microsoft Corporation - installed 2017-04-12)
[Not Loaded] org.eyebeam.SelfControl.plist (Charlie Stigler - installed 2018-05-24)
[Loaded] com.adobe.fpsaud.plist (Adobe Systems, Inc. - installed 2018-04-29)
[Loaded] com.adobe.ARMDC.Communicator.plist (Adobe Systems, Inc. - installed 2018-02-14)
[Loaded] com.microsoft.office.licensingV2.helper.plist (Microsoft Corporation - installed 2016-01-09)

User Launch Agents:

[Loaded] com.google.keystone.agent.plist (Google, Inc. - installed 2018-02-03)
[Loaded] com.skype.skype.shareagent.plist (Skype Communications S.a.r.l - installed 2017-07-08)

User Login Items:

iTunesHelper Application (Apple - installed 2016-07-19)


Dictation Application (? - installed 2016-06-19)

(/System/Library/Input Methods/DictationIM.app)

Caffeine Application (Mac App Store - installed 2016-08-20)


Internet Plug-ins:

FlashPlayer-10.6: (installed 2018-05-08)

QuickTime Plugin: 7.7.3 (installed 2017-11-24)

AdobePDFViewerNPAPI: 17.012.20098 (installed 2018-05-14)

AdobePDFViewer: 18.011.20040 (installed 2018-05-14)

Flash Player: (installed 2018-05-08)

Default Browser: 601 (installed 2017-11-24)

PepperFlashPlayer: (installed 2018-05-08)

Silverlight: 5.1.41212.0 (installed 2016-04-27)

DirectorShockwave: 12.2.4r194 (installed 2016-02-23)

3rd Party Preference Panes:

Flash Player (installed 2018-04-29)

Time Machine:

Time Machine Not Configured!

Top Processes by CPU:

Process (count)Source% of CPULocation
Google Chrome Helper (18)Google, Inc.1
Google ChromeGoogle, Inc.0

Top Processes by Memory:

Process (count)SourceRAM usageLocation
Google Chrome Helper (18)Google, Inc.957 MB
kernel_taskApple785 MB
Google ChromeGoogle, Inc.268 MB
com.apple.SpeechRecognitionCore.speechrecognitiondApple180 MB
helpdApple156 MB

Top Processes by Energy Use:

Process (count)SourceEnergy (0-100)Location

Virtual Memory Information:

Available RAM3.11 GB
Free RAM383 MB
Used RAM4.89 GB
Cached files2.74 GB
Swap Used28 MB

Software Installs (past 30 days):

NameVersionInstall Date
Adobe Flash Player29.0.0.1712018-05-08
Adobe Pepper Flash Player29.0.0.1712018-05-08
Adobe Acrobat Reader DC (18.011.20040)18.011.200402018-05-14
Gatekeeper Configuration Data1392018-05-25

Diagnostics Information (past 7 days):

2018-05-28 01:58:35 Last Shutdown Cause: 0 - Power loss

2018-05-28 01:45:03 WindowServer Crash (2 times)

/System/Library/Frameworks/CoreGraphics.framework/Versions/A/Resources/WindowSer ver

Assertion failed: (x_list_nth(active_managed_displays, 0) == PKGDisplayGetSpaceData(pkg_display)), function __session_data_handle_display_config_change_block_invoke395, file Server/Packages/PKGSpace.c, line 7409.

2018-05-28 01:43:52 accountsd Crash


*** Terminating app due to uncaught exception 'ACExceptionFailedBootstrapLookUp', reason: 'Failed to communicate with accountsd.'

terminating with uncaught exception of type NSException

abort() called

End of report

May 28, 2018 3:41 PM

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User profile for user: maxzgp

Question: Macbook Air suddenly shut off, now runs slow and sound is broken