imac peripherals need to be switched out constantly

Question

Inglesworth Author

Level 1

0 points

imac peripherals need to be switched out constantly

System specs:

OS 10.8.5

Processor: 2.7 GHz Intel Core i5

Memory: 8GB 1600MHz DDR3

I believe it was purchased in 2013.

Periodically, when restarting the computer, the keyboard and mouse stop working. If I replace it with a different keyboard/mouse, it works fine. If I shut down and turn the computer back on again, the keyboard and mouse stop working. If I replace them with the ORIGINAL keyboard and mouse again, it works again.

I am now experiencing the same issue with an external display connected via thunderbolt/hdmi adapter. The display will stop working, and cycle through the digital/analog inputs looking for a signal. Every time it gets to the digital/hdmi option, the iMac screen flashes as though an external display was just hooked up and it is getting ready to have 2 displays. It comes back with only the iMac display working. I can switch out the displays, and it works. When it stops working again, I can replace the new display with the ORIGINAL display, and it will work again.

In both cases, if I unplug the non-working peripherals and plug them back in (without swapping them for a different unit) it will not fix the issue. They must be swapped to fix the issue temporarily.

Anyone know why this happens? How to make it stop?

I've tried looking at display settings to see if there is a something blocking it there, can't find any issues. I've trying clearing the NVRAM, no fix.

iMac, OS X Mountain Lion (10.8.5)

Posted on Jul 2, 2015 10:23 AM

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Answer 1

rkaufmann87

Level 10

140,364 points

Jul 2, 2015 10:34 AM in response to Inglesworth

Reset the PRAM 2-3 times back to back, sometimes the first take does not work. Also reset the SMC, again try 2-3 times back to back. Instructions for both resets are in:

iMac SMC and PRAM reset

If 2-3 resets of both do not work, then please post an EtreCheck report of your system and we can look for obvious issues. You can download EtreCheck by clicking http://www.etresoft.com/etrecheck

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Answer 2

Inglesworth Author

Level 1

0 points

Jul 2, 2015 10:47 AM in response to rkaufmann87

Thanks for this. I am still hesitant to say that this solved my issue for good.

I did the SMC reset, and when I turned the computer back on, I tried the PRAM reset. I heard the startup bing twice, but I was still holding the cmd+opt+P+R to give it another round or two, but the keyboard stopped responding in the middle of that and it just started up, I had to switch keyboards. However, when the mac came back on, the display was working again. I can't tell what did or didn't fix it yet.

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Answer 3

rkaufmann87

Level 10

140,364 points

Jul 2, 2015 10:48 AM in response to Inglesworth

Okay, if you continue to have issues please post the requested EtreCheck report.

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Answer 4

Inglesworth Author

Level 1

0 points

Jul 9, 2015 9:05 AM in response to rkaufmann87

This issue persists...

Here is the requested report:

Problem description:

When I restart my computer, 90% of the time the keyboard doesn’t work and needs to be replaced. Simply unplugging and replugging it in won’t work. But the next time it happens, I can go back to the original keyboard and it works again. I have cycled between the same 2 keyboards for weeks now. Additionally, my second display (connected thunderbolt>HDMI adapter) has a similar issue.

EtreCheck version: 2.2 (132)

Report generated 7/9/15 9:00 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

iMac (21.5-inch, Late 2012) (Technical Specifications)

iMac - model: iMac13,1

1 2.7 GHz Intel Core i5 CPU: 4-core

8 GB RAM

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

Video Information: ℹ️

NVIDIA GeForce GT 640M - VRAM: 512 MB

iMac 1920 x 1080

System Software: ℹ️

OS X 10.8.5 (12F45) - Time since boot: 0:5:36

Disk Information: ℹ️

APPLE HDD ST1000LM024 disk0 : (1 TB)

disk0s1 (disk0s1) <not mounted> : 210 MB

Macintosh HD (disk0s2) / : 999.35 GB (709.13 GB free)

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

USB Information: ℹ️

Hewlett-Packard HP LaserJet CM1415fnw

Apple Inc. FaceTime HD Camera (Built-in)

Apple, Inc. Keyboard Hub

Kensington Kensington Expert Mouse

Apple Inc. Apple Keyboard

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Firewire Information: ℹ️

Seagate GoFlex Desk Mac 800mbit - 800mbit max

disk1s1 (disk1s1) <not mounted> : 210 MB

SFX Library (disk1s2) /Volumes/SFX Library : 2.00 TB (659.73 GB free)

Thunderbolt Information: ℹ️

Apple Inc. thunderbolt_bus

Apple Inc. Thunderbolt to FireWire Adapter

Gatekeeper: ℹ️

Anywhere

Kernel Extensions: ℹ️

/Library/Application Support/VirtualBox

[loaded] org.virtualbox.kext.VBoxDrv (4.3.26) [Click for support]

[loaded] org.virtualbox.kext.VBoxNetAdp (4.3.26) [Click for support]

[loaded] org.virtualbox.kext.VBoxNetFlt (4.3.26) [Click for support]

[loaded] org.virtualbox.kext.VBoxUSB (4.3.26) [Click for support]

/System/Library/Extensions

[loaded] com.StudioNetworks.driver.ContentFilter (4.2.0) [Click for support]

[loaded] com.StudioNetworks.driver.ContentFilterController (4.2.0) [Click for support]

[not loaded] com.StudioNetworks.driver.SANmpPartitionFilter (4.2.0) [Click for support]

[loaded] com.digidesign.iokit.DigiDal (10.3.7f41 - SDK 10.6) [Click for support]

[not loaded] com.paceap.kext.pacesupport.master (5.9.1 - SDK 10.6) [Click for support]

[loaded] com.rogueamoeba.InstantOn (6.0.2 - SDK 10.6) [Click for support]

[loaded] com.sns.driver.MacPeripheralDeviceTypeFilter (4.2.0) [Click for support]

[loaded] com.sns.driver.SNSArchitectureModel (1.1.4) [Click for support]

[loaded] com.sns.driver.SnsiSCSI (5.2.0) [Click for support]

[loaded] com.sns.driver.Xtarget (1.1.1) [Click for support]

[not loaded] com.studionetworksolutions.kext.customfs (1.5 - SDK 10.7) [Click for support]

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

[loaded] com.rogueamoeba.InstantOnCore (6.0.2 - SDK 10.6) [Click for support]

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

[not loaded] com.paceap.kext.pacesupport.leopard (5.9.1 - SDK 10.4) [Click for support]

[not loaded] com.paceap.kext.pacesupport.panther (5.9.1 - SDK 10.-1) [Click for support]

[loaded] com.paceap.kext.pacesupport.snowleopard (5.9.1 - SDK 10.6) [Click for support]

[not loaded] com.paceap.kext.pacesupport.tiger (5.9.1 - SDK 10.4) [Click for support]

Startup Items: ℹ️

DigidesignLoader: Path: /Library/StartupItems/DigidesignLoader

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.hp.messagecenter.launcher.plist [Click for support]

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

[running] com.studionetworksolutions.evosharebrowser.indexer.qthelper.plist [Click for support]

Launch Daemons: ℹ️

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

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

[running] com.aladdin.aksusbd.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.paceap.eden.licensed.plist [Click for support]

[running] com.sns.globalSAN.daemon.plist [Click for support]

[running] com.sns.Xtarget.daemon.plist [Click for support]

[running] com.studionetworksolutions.evosharebrowser.diskhelper.plist [Click for support]

[running] com.studionetworksolutions.evosharebrowser.indexer.mdhelper.plist [Click for support]

[running] com.studionetworksolutions.evosharebrowser.indexer.plist [Click for support]

[running] com.studionetworksolutions.sanmp.daemon.plist [Click for support]

[not loaded] org.virtualbox.startup.plist [Click for support]

[loaded] PACESupport.plist [Click for support]

User Launch Agents: ℹ️

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

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

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

[not loaded] org.virtualbox.vboxwebsrv.plist [Click for support]

User Login Items: ℹ️

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

Android File Transfer Agent Application (/Users/[redacted]/Library/Application Support/Google/Android File Transfer/Android File Transfer Agent.app)

Internet Plug-ins: ℹ️

FlashPlayer-10.6: Version: 18.0.0.203 - SDK 10.6 [Click for support]

QuickTime Plugin: Version: 7.7.1

AdobePDFViewerNPAPI: Version: 11.0.11 - SDK 10.6 [Click for support]

Flash Player: Version: 18.0.0.203 - SDK 10.6 [Click for support]

AdobePDFViewer: Version: 11.0.11 - SDK 10.6 [Click for support]

SharePointBrowserPlugin: Version: 14.4.7 - SDK 10.6 [Click for support]

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

JavaAppletPlugin: Version: Java 8 Update 45 Check version

User internet Plug-ins: ℹ️

CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 [Click for support]

Aspera Web 3.5.1.92531: Version: Unknown - SDK 10.9 [Click for support]

SigniantTransfer v5.4.0.60258: Version: SigniantTransfer 5.4.0.60258 - SDK 10.8 [Click for support]

Audio Plug-ins: ℹ️

Avid CoreAudio: Version: 10.3.7.296 - SDK 10.6 [Click for support]

3rd Party Preference Panes: ℹ️

Flash Player [Click for support]

globalSAN iSCSI Initiator and Xtarget [Click for support]

Java [Click for support]

Time Machine: ℹ️

Time Machine not configured!

Top Processes by CPU: ℹ️

1% fontd

1% WindowServer

0% mdworker(2)

0% firefox

0% imagent

Top Processes by Memory: ℹ️

385 MB firefox

66 MB mds

49 MB WindowServer

41 MB Finder

41 MB Dock

Virtual Memory Information: ℹ️

5.66 GB Free RAM

2.34 GB Used RAM

0 B Swap Used

Diagnostics Information: ℹ️

Jul 9, 2015, 08:54:35 AM Self test - passed

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