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Question: MBP crashes when using browsers

Haven't found precisely this problem described before...


At random, my MacBook Pro will crash completely - black screen, no response whatsoever - when I am using an internet browser. As far as I can tell, it only happens then, but it makes no difference which browser I use. I can't recognise a pattern otherwise (other actions, specific websites, whatever).


Sometimes it reboots by itself, sometimes it gives me the multilingual "computer shut down incorrectly" message, sometimes it does nothing and I have to force restart using the power button.


Similar problems have been reported on here and traced to magnets (none round me), dodgy battery (I'm nearly always running off mains AC) loose connection to the screen (I'm not moving or even touching the screen when it happens), and so on, but these appear not to be relevant in my case.


I'm running El Capitan 10.11.6 on a 2011 MBP, but this problem predates my OS update - it happened already on OS 10.6. It has got more frequent recently though. Wondering if this is a known problem, whether there's a fix, or whether my Mac is just getting old.

MacBook Pro, OS X El Capitan (10.11.6)

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Mar 10, 2018 6:41 AM in response to alexanderfromkullavik In response to alexanderfromkullavik

This is a diagnostic test.


Please run EtreCheck and post the report here.


https://etrecheck.com


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.

Mar 10, 2018 6:41 AM

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Mar 10, 2018 10:18 AM in response to dominic23 In response to dominic23

Hi, thanks for the support.


Here is the report that EtreCheck generated. The shutdown that is mentioned in the Diagnostics section is an example of my problem, earlier today.


EtreCheck version: 4.1.3 (4A186)

Report generated: 2018-03-10 19:10:21

Download EtreCheck from https://etrecheck.com

Runtime: 6:44

Performance: Below Average


Problem: Computer is restarting

Description:

Computer crashes completely (black screen) at random when using any browser. No obvious difference in performance between browsers and no obvious other trigger.


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.


Upgradeable hard drive - This machine’s hard drive could be replaced with an SSD. This would dramatically improve your machine’s performance.

Unsigned files - There is unsigned software installed. They appear to be legitimate but should be reviewed.

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

Vintage hardware - This machine may be considered vintage.


Hardware Information:

MacBook Pro (15-inch, Mid 2010) - Vintage!

MacBook Pro Model: MacBookPro6,2

1 2.8 GHz Intel Core i7 (i7) CPU: 2-core

8 GB RAM At maximum

BANK 0/DIMM0

4 GB DDR3 1067 ok

BANK 1/DIMM0

4 GB DDR3 1067 ok

Battery: Health = Normal - Cycle count = 311


Video Information:

Intel HD Graphics - VRAM: 288 MB

NVIDIA GeForce GT 330M - VRAM: 512 MB

Color LCD 1680 x 1050


Drives:

disk0 - ST9500325ASG 500.11 GB (Mechanical)

Internal SATA 1.5 Gigabit Serial ATA

disk0s1 - EFI [EFI] 210 MB

disk0s2 - Macintosh HD [Core Storage Container] 499.25 GB

disk1 - Macintosh HD (Journaled HFS+) 498.88 GB

disk0s3 - Recovery HD [Recovery] 650 MB


Mounted Volumes:

disk1 - Macintosh HD 498.88 GB (216.89 GB free)

Journaled HFS+

Mount point: /


Network:

Interface en0: Ethernet

Interface fw0: FireWire

Interface en1: Wi-Fi

802.11 a/b/g/n

One IPv4 address


System Software:

OS X El Capitan 10.11.6 (15G1011)

Time since boot: About 5 hours

System Load: 1.93 (1 min ago) 1.59 (5 min ago) 2.89 (15 min ago)


Security:

System

Status

Gatekeeper

Mac App Store and identified developers

System Integrity Protection

Enabled


Unsigned Files:

Launchd: /Library/LaunchDaemons/com.avast.uninstall.plist

Executable: /Library/Application Support/Avast/hub/autouninstall.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.avast.userinit.plist

Executable: /Library/Application Support/Avast/hub/userinit.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.quark.quarkupdate.plist

Executable: /Library/PrivilegedHelperTools/com.quark.quarkupdate

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/de.novamedia.launch2net.deviceobserver.plist

Executable: /Applications/Stay Connected/Stay Connected.app/Contents/MacOS/NML2NDeviceObserver.app/Contents/MacOS/NML2NDevice Observer

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/de.novamedia.launch2net.nmnetmgrd.plist

Executable: /Applications/Stay Connected/Stay Connected.app/Contents/MacOS/nmnetmgrd_launchd

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.avast.update.plist

Executable: /Library/Application Support/Avast/components/update/update.sh

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.quark.quarkupdate.agent.plist

Executable: /Library/PreferencePanes/QUPreferencePane.prefPane/Contents/MacOS/PreferenceHel per --silent

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.avast.init.plist

Executable: /Library/Application Support/Avast/hub/init.sh

Details: Exact match found in the whitelist - probably OK

Launchd: ~/Library/LaunchAgents/com.avast.home.userinit.plist

Executable: ~/Library/Application Support/Avast/hub/userinit.sh

Details: Exact match found in the whitelist - probably OK


Kernel Extensions:

/Library/Application Support/Avast/components/fileshield/signed

[Loaded] AvastFileShield.kext (AVAST Software a.s., 4.0.0 - SDK 10.12)

/Library/Application Support/Avast/components/proxy/signed

[Loaded] AvastPacketForwarder.kext (AVAST Software a.s., 2.1 - SDK 10.12)

/System/Library/Extensions

[Not Loaded] ZTEUSBCDCACMData.kext (ZTEDriver_MacV1.3.8)

[Not Loaded] ZTEUSBMassStorageFilter.kext (ZTEDriver_MacV1.3.8)

[Not Loaded] Option72.kext (2.17.0)

[Not Loaded] cdc_ecm_qmi.kext (1.0.1)

[Not Loaded] cdc.kext (1.0.1)

[Not Loaded] NMSonyEricssonMD400.kext (1.0.1)

/System/Library/Extensions/NMSonyEricssonMD400.kext/Contents/PlugIns

[Not Loaded] NMUSBCDCACMControl.kext (3.2.6)

[Not Loaded] NMUSBCDCACMData.kext (3.2.6)


System Launch Agents:

[Not Loaded]

7 Apple tasks

[Loaded]

159 Apple tasks

[Running]

72 Apple tasks


System Launch Daemons:

[Not Loaded]

46 Apple tasks

[Loaded]

159 Apple tasks

[Running]

86 Apple tasks

[Other]

One Apple task


Launch Agents:

[Loaded]

com.quark.quarkupdate.agent.plist (? 4b40d0e6 - installed 2010-10-22)

[Loaded]

com.avast.userinit.plist (? bb25154c - installed 2018-01-22)

[Loaded]

com.google.keystone.agent.plist (Google, Inc. - installed 2018-02-04)

[Running]

com.avast.update-agent.plist (AVAST Software a.s. - installed 2018-01-22)

[Running]

de.novamedia.launch2net.deviceobserver.plist (? 9cb2f9d6 - installed 2010-10-21)


Launch Daemons:

[Loaded]

com.avast.uninstall.plist (? 22f94791 - installed 2018-01-22)

[Loaded]

com.avast.init.plist (? fc55b6fa - installed 2018-01-22)

[Running]

de.novamedia.launch2net.nmnetmgrd.plist (? 71539e4c - installed 2010-10-21)

[Loaded]

com.adobe.fpsaud.plist (Adobe Systems, Inc. - installed 2018-02-02)

[Loaded]

com.quark.quarkupdate.plist (? b5d626e1 - installed 2018-01-27)

[Loaded]

com.google.keystone.daemon.plist (Google, Inc. - installed 2018-03-06)

[Running]

com.avast.update.plist (? 5c6ac355 - installed 2018-01-22)


User Launch Agents:

[Loaded]

com.dropbox.DropboxMacUpdate.agent.plist (Dropbox, Inc. - installed 2017-08-10)

[Loaded]

com.avast.home.userinit.plist (? 0 - installed 2018-01-22)

[Loaded]

com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist (? 0 - installed 2015-09-24)


User Login Items:

iTunesHelper Application (Apple, Inc. - installed 2018-01-24)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Dropbox Application (Dropbox, Inc.

(/Applications/Dropbox.app)


Internet Plug-ins:

NPDjVu: 6.1.1 (installed 2010-07-09)

Google Earth Web Plug-in: 7.1 (installed 2013-10-07)

Default Browser: 601 (installed 2017-08-09)

PrintDialogExt: 6.1.1 (installed 2010-07-09)

AdobePDFViewerNPAPI: 10.1.16 (installed 2018-01-28)

FlashPlayer-10.6: 28.0.0.161 (installed 2018-02-07)

Silverlight: 5.1.10411.0 (installed 2013-01-10)

QuickTime Plugin: 7.7.3 (installed 2017-08-09)

Flash Player: 28.0.0.161 (installed 2018-02-07)

iPhotoPhotocast: 7.0 (installed 2012-03-30)

AdobePDFViewer: 10.1.16 (installed 2018-01-28)

JavaAppletPlugin: 15.0.1 (installed 2012-06-18)


Safari Extensions:

wrc.safariextz - AVAST Software - http://www.avast.com (installed 2015-03-04)


3rd Party Preference Panes:

Flash Player (installed 2018-02-02)

Quark Update Preferences (installed 2011-08-22)


Time Machine:

Time Machine Not Configured!


Top Processes by CPU:

Process (count)

Source

% of CPU

WindowServer

Apple

5

kernel_task

Apple

2

Google Chrome Helper (7)

Google, Inc.

1

Google Chrome

Google, Inc.

0

syspolicyd

Apple

0


Top Processes by Memory:

Process (count)

Source

RAM usage

Google Chrome Helper (7)

Google, Inc.

1.07 GB

kernel_task

Apple

715 MB

Dropbox (3)

Dropbox, Inc.

230 MB

Google Chrome

Google, Inc.

223 MB

Finder

Apple

218 MB


Top Processes by Energy Use:

Process (count)

Source

Energy usage (0-100)

WindowServer

Apple

3

Dropbox (3)

Dropbox, Inc.

3

Google Chrome Helper (7)

Google, Inc.

1

Google Chrome

Google, Inc.

0

mds

Apple

0


Virtual Memory Information:

Available RAM

3.86 GB

Free RAM

16 MB

Used RAM

4.14 GB

Cached files

3.84 GB

Swap Used

0 B


Diagnostics Information (past 7 days):

2018-03-10 13:36:53 Last Shutdown Cause: -62 - System unresponsive (once)


End of report

Mar 10, 2018 10:18 AM

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Mar 10, 2018 1:41 PM in response to dominic23 In response to dominic23

OK, done. I will see how much it crashes tomorrow and report back.


Is this a general problem with Avast, or was my installation corrupt? In other words, do I need to look for an alternative antivirus program?

Mar 10, 2018 1:41 PM

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Mar 12, 2018 2:45 AM in response to alexanderfromkullavik In response to alexanderfromkullavik

Did the performance improve after removing Avast?


From the report first report:


User uploaded file


Upgradeable hard drive - This machine’s hard drive could be replaced with an SSD. This would dramatically improve your machine’s performance.

Unsigned files - There is unsigned software installed. They appear to be legitimate but should be reviewed.

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

Vintage hardware - This machine may be considered vintage.

Please run EtreCheck again to check.

Power off the router. Unplug it from the wall. Wait a while.

Plug it back in. Power the router on. Wait until all lights are lit properly. It will take a while

Restart the computer.

Start up in Safe Mode.

https://support.apple.com/kb/PH18760?locale=en_US

Mar 12, 2018 2:45 AM

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User profile for user: alexanderfromkullavik

Question: MBP crashes when using browsers