Acer monitor V233H stops working after Macbook Pro goes to sleep (among other things)

Apologies for the long EtreCheck report but I figured it best to just include everything as I don't know where to look for the problem at this point. Have already attempted the usual Restart laptop, Repair disk permissions and reset SMC (although I'm not sure how to check that the SMC reset was successfully carried out).

Problem description:

Acer monitor V233H

Works with my 2012 13” Macbook Pro only after I unplug it (both power and VGA-MiniDisplayport1.2 adapter), hold power button on monitory for ~15-30 sec and then plug everything back in (weirdly without holding the power button down on the monitor even when it is unplugged the monitor does not work when I plug everything back in... not sure how a cold reset would work). Currently I’ve noticed these things that make the monitor stop working (black screen, goes to sleep, when turned on it shows acer briefly and then says no signal):

- laptop goes to sleep; monitor no longer works when my macbook wakes up

- hitting ‘detect displays’ in System preferences/Displays (while the monitor is still connected and functioning)

- when I restart macbook while the monitor is still plugged in and working normally.

Also of note, I have an old aluminum Mac Display at home that works just fine (uses DVI-MiniDisplay port adapter connection).

EtreCheck version: 2.2 (132)

Report generated 6/30/15, 10:22 AM

Download EtreCheck from http://etresoft.com/etrecheck

Click the [Click for support] links for help with non-Apple products.

Click the [Click for details] links for more information about that line.

Hardware Information: ℹ️

MacBook Pro (13-inch, Mid 2012) (Technical Specifications)

MacBook Pro - model: MacBookPro9,2

1 2.9 GHz Intel Core i7 CPU: 2-core

8 GB RAM Upgradeable

BANK 0/DIMM0

4 GB DDR3 1600 MHz ok

BANK 1/DIMM0

4 GB DDR3 1600 MHz ok

Bluetooth: Good - Handoff/Airdrop2 supported

Wireless: en1: 802.11 a/b/g/n

Battery: Health = Normal - Cycle count = 172 - SN = 9G34608K7D3MB

Video Information: ℹ️

Intel HD Graphics 4000

Color LCD 1280 x 800

System Software: ℹ️

OS X 10.10.3 (14D136) - Time since boot: 0:35:45

Disk Information: ℹ️

APPLE HDD HTS541075A9E662 disk0 : (750.16 GB)

EFI (disk0s1) <not mounted> : 210 MB

Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB

Macintosh HD (disk1) / : 748.93 GB (387.77 GB free)

Encrypted AES-XTS Unlocked

Core Storage: disk0s2 749.30 GB Online

HL-DT-ST DVDRW GS41N

USB Information: ℹ️

Apple Inc. FaceTime HD Camera (Built-in)

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Computer, Inc. IR Receiver

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Thunderbolt Information: ℹ️

Apple Inc. thunderbolt_bus

Configuration files: ℹ️

/etc/hosts - Count: 51

Gatekeeper: ℹ️

Mac App Store and identified developers

Kernel Extensions: ℹ️

/Library/Extensions

[loaded] com.sophos.driver.devctrl (9.2.50 - SDK 10.6) [Click for support]

[loaded] com.sophos.kext.sav (9.2.50 - SDK 10.8) [Click for support]

[loaded] com.sophos.nke.swi (9.2.50 - SDK 10.8) [Click for support]

/System/Library/Extensions

[loaded] com.Cycling74.driver.Soundflower (1.6.6 - SDK 10.6) [Click for support]

[not loaded] com.Symantec.kext.KTUM (10.0.0) [Click for support]

[not loaded] com.Symantec.kext.SymEvent (2.0) [Click for support]

[not loaded] com.Symantec.kext.SymOSXKernelUtilities (3.0) [Click for support]

[not loaded] com.wacom.kext.pentablet (5.3.5 - SDK 10.9) [Click for support]

[not loaded] com.wacom.kext.wacomtablet (6.3.9 - SDK 10.9) [Click for support]

Startup Items: ℹ️

NortonMissedTasks: Path: /Library/StartupItems/NortonMissedTasks

ProTec6b: Path: /Library/StartupItems/ProTec6b

Startup items are obsolete in OS X Yosemite

Launch Agents: ℹ️

[not loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]

[loaded] com.adobe.CS4ServiceManager.plist [Click for support]

[running] com.brother.LOGINserver.plist [Click for support]

[loaded] com.citrix.AuthManager_Mac.plist [Click for support]

[running] com.citrix.ReceiverHelper.plist [Click for support]

[running] com.citrix.ServiceRecords.plist [Click for support]

[loaded] com.examsoft.softest.plist [Click for support]

[loaded] com.google.keystone.agent.plist [Click for support]

[loaded] com.oracle.java.Java-Updater.plist [Click for support]

[running] com.sophos.uiserver.plist [Click for support]

[running] com.wacom.pentablet.plist [Click for support]

[running] com.wacom.wacomtablet.plist [Click for support]

[running] org.chromium.chromoting.plist [Click for support]

Launch Daemons: ℹ️

[failed] BES_ipfw_firewall.plist [Click for support]

[running] BESAgentDaemon.plist [Click for support]

[loaded] com.adobe.fpsaud.plist [Click for support]

[loaded] com.adobe.SwitchBoard.plist [Click for support]

[running] com.crashplan.engine.plist [Click for support]

[running] com.cudadrive.cudadrivesvcd.plist [Click for support]

[running] com.cudadrive.cudadrivesvcd.plisttransac...plisttransaction_backup51a67d03-33d2- 49d2-b215-b6e04f8467af [Click for support]

[running] com.examsoft.softest.service.plist [Click for support]

[loaded] com.google.keystone.daemon.plist [Click for support]

[running] com.iobit.AMCDaemon.plist [Click for support]

[loaded] com.microsoft.office.licensing.helper.plist [Click for support]

[loaded] com.oracle.java.Helper-Tool.plist [Click for support]

[loaded] com.oracle.java.JavaUpdateHelper.plist [Click for support]

[running] com.sophos.common.servicemanager.plist [Click for support]

[loaded] net.sourceforge.MonolingualHelper.plist [Click for support]

User Launch Agents: ℹ️

[loaded] com.adobe.ARM.[...].plist [Click for support]

[running] com.spotify.webhelper.plist [Click for support]

User Login Items: ℹ️

Flux Application (/Applications/Flux.app)

Office Check Application Hidden (/Applications/Microsoft Office 2011/Office Check.app)

BetterSnapTool Application Hidden (/Applications/BetterSnapTool.app)

Remote Mouse Application (/Applications/Remote Mouse.app)

CrashPlan menu bar Application (/Applications/CrashPlan.app/Contents/Helpers/CrashPlan menu bar.app)

Internet Plug-ins: ℹ️

CS ChemDraw Pro: Version: 12.0.3 [Click for support]

nplastpass: Version: 2.0.15 [Click for support]

DirectorShockwave: Version: 12.1.7r157 - SDK 10.6 [Click for support]

o1dbrowserplugin: Version: 5.41.0.0 - SDK 10.8 [Click for support]

Google Earth Web Plug-in: Version: 6.1 [Click for support]

Default Browser: Version: 600 - SDK 10.10

RhapsodyPlayerEngine: Version: 1.0.2 [Click for support]

Unity Web Player: Version: UnityPlayer version 2.5.6f5 [Click for support]

WacomTabletPlugin: Version: WacomTabletPlugin 2.1.0.6 - SDK 10.9 [Click for support]

Silverlight: Version: 5.1.40416.0 - SDK 10.6 [Click for support]

FlashPlayer-10.6: Version: 18.0.0.194 - SDK 10.6 [Click for support]

Flash Player: Version: 18.0.0.194 - SDK 10.6 [Click for support]

iPhotoPhotocast: Version: 7.0

CitrixICAClientPlugIn: Version: 11.8.2 - SDK 10.7 [Click for support]

googletalkbrowserplugin: Version: 5.41.0.0 - SDK 10.8 [Click for support]

QuickTime Plugin: Version: 7.7.3

SharePointBrowserPlugin: Version: 14.1.0 [Click for support]

NPMySpeedPlugin: Version: 1.4 - SDK 10.5 [Click for support]

JavaAppletPlugin: Version: Java 8 Update 45 Check version

Safari Extensions: ℹ️

Evernote Web Clipper

3rd Party Preference Panes: ℹ️

remoting_host_prefpane [Click for support]

Flash Player [Click for support]

Java [Click for support]

PenTablet [Click for support]

WacomTablet [Click for support]

Time Machine: ℹ️

Mobile backups: ON

Auto backup: YES

Volumes being backed up:

Macintosh HD: Disk size: 748.93 GB Disk used: 361.15 GB

Destinations:

Tripp's External HD 2 [Local]

Total size: 999.86 GB

Total number of backups: 24

Oldest backup: 2014-04-25 01:11:58 +0000

Last backup: 2015-06-24 06:45:13 +0000

Size of backup disk: Too small

Backup size 999.86 GB < (Disk used 361.15 GB X 3)

Top Processes by CPU: ℹ️

2% WindowServer

1% Microsoft Word

1% fontd

1% BESAgent

1% System Preferences

Top Processes by Memory: ℹ️

749 MB kernel_task

197 MB InterCheck

197 MB mdworker(13)

180 MB SophosScanD

156 MB mds_stores

Virtual Memory Information: ℹ️

1.99 GB Free RAM

6.01 GB Used RAM

0 B Swap Used