Dear all,
I am having a problem with my iMac. 27" late 2012 model.
Around a week ago, I noticed that this problem only occurs after my iMac has been on for about an hour or so. Whenever I change volume or brightness, there is a lag between me pressing the key and the changes taking place.
I have tried all SMC and NVRAM resets but to no avail.
Any help is much appreciated.
Thanks!
Just try to reset the NVRAM.
If that doesn't work you can try to reset SMC following this guide Resetting the System Management Controller (SMC) on your Mac - Apple Support
Sounds like maybe it is getting bogged down by a either a failed process, to many processes running or the lack of resources.
1. Check your Activity Monitor (it's in your Applications > Utilities folder) for a failed or run away process.
2. Run EtraCheck and look at or post back here with the results.
Hi,
Thanks for the quick reply.
From the activity monitor, there are no failed processes. I have an idle CPU of 95%.
As for the Etracheck, please see attached:
Problem description:
volume and brightness change lag
EtreCheck version: 2.4.1 (137)
Report generated 8/26/15, 9:26 PM
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.
Click the [Click to remove] links for help removing adware.
Hardware Information: (What does this mean?)
iMac (27-inch, Late 2012) (Technical Specifications)
iMac - model: iMac13,2
1 3.4 GHz Intel Core i7 CPU: 4-core
24 GB RAM Upgradeable
BANK 0/DIMM0
8 GB DDR3 1600 MHz ok
BANK 1/DIMM0
8 GB DDR3 1600 MHz ok
BANK 0/DIMM1
4 GB DDR3 1600 MHz ok
BANK 1/DIMM1
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
Video Information: (What does this mean?)
NVIDIA GeForce GTX 680MX - VRAM: 2048 MB
iMac 2560 x 1440
System Software: (What does this mean?)
OS X 10.10.1 (14B25) - Time since boot: about 2 hours
Disk Information: (What does this mean?)
APPLE HDD ST1000DM003 disk1 : (1 TB) (Rotational)
EFI (disk1s1) <not mounted> : 210 MB
Recovery HD (disk1s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk2) / : 1.11 TB (663.20 GB free)
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 999.35 GB Online
APPLE SSD SM128E disk0 : (121.33 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) <not mounted> : 210 MB
Boot OS X (disk0s3) <not mounted> : 134 MB
Macintosh HD (disk2) / : 1.11 TB (663.20 GB free)
Core Storage: disk0s2 120.99 GB Online
Core Storage: disk1s2 999.35 GB Online
USB Information: (What does this mean?)
LaCie d2 THB USB3 3 TB
EFI (disk3s1) <not mounted> : 210 MB
Time Machine (disk3s2) /Volumes/Time Machine : 2.00 TB (157.60 GB free)
Lacie 1 TB (disk3s3) /Volumes/Lacie 1 TB : 1.00 TB (941.96 GB free)
VIA Labs, Inc. USB3.0 Hub
VIA Labs, Inc. USB3.0 Hub
Bowers & Wilkins MM-1
Blue Microphones Yeti Stereo Microphone
FUJI XEROX DocuPrint CM115/118 w
Logitech USB Receiver
Apple Inc. MacBook Air SuperDrive
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Gatekeeper: (What does this mean?)
Mac App Store and identified developers
Kernel Extensions: (What does this mean?)
/Applications/Parallels Desktop.app
[not loaded] com.parallels.kext.hidhook (8.0 18608.898384) [Click for support]
[not loaded] com.parallels.kext.hypervisor (8.0 18608.898384) [Click for support]
[not loaded] com.parallels.kext.netbridge (8.0 18608.898384) [Click for support]
[not loaded] com.parallels.kext.usbconnect (8.0 18608.898384) [Click for support]
[not loaded] com.parallels.kext.vnic (8.0 18608.898384) [Click for support]
/Applications/Tunnelblick.app
[not loaded] net.tunnelblick.tap (1.0) [Click for support]
[not loaded] net.tunnelblick.tun (1.0) [Click for support]
/Library/Extensions
[loaded] com.logitech.manager.kernel.driver (5.20.1 - SDK 10.8) [Click for support]
[not loaded] foo.tap (1.0) [Click for support]
[not loaded] foo.tun (1.0) [Click for support]
/System/Library/Extensions
[loaded] com.Logitech.Control Center.HID Driver (3.7.0 - SDK 10.6) [Click for support]
[loaded] com.Logitech.Unifying.HID Driver (1.3.0 - SDK 10.6) [Click for support]
[loaded] com.avira.kext.FileAccessControl (1.0.0d1 - SDK 10.9) [Click for support]
Startup Items: (What does this mean?)
tap: Path: /Library/StartupItems/tap
tun: Path: /Library/StartupItems/tun
TuxeraNTFSUnmountHelper: Path: /Library/StartupItems/TuxeraNTFSUnmountHelper
Startup items are obsolete in OS X Yosemite
Problem System Launch Daemons: (What does this mean?)
[failed] com.apple.dpd.plist
Launch Agents: (What does this mean?)
[running] CM115-118wprinthelper.plist [Click for support]
[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a...plist [Click for support]
[loaded] com.avira.antivirus.general.agent.plist [Click for support]
[loaded] com.avira.antivirus.ipm.ui.plist [Click for support]
[loaded] com.avira.antivirus.notifications.agent.plist [Click for support]
[loaded] com.avira.antivirus.odscan.default.plist [Click for support]
[loaded] com.avira.antivirus.scheduler.agent.plist [Click for support]
[running] com.avira.antivirus.systray.plist [Click for support]
[loaded] com.avira.antivirus.telemetry.agent.plist [Click for support]
[loaded] com.avira.antivirus.update.default.plist [Click for support]
[running] com.avira.helper.avstats.plist [Click for support]
[running] com.Logitech.Control Center.Daemon.plist [Click for support]
[running] com.logitech.manager.daemon.plist [Click for support]
[loaded] com.oracle.java.Java-Updater.plist [Click for support]
Launch Daemons: (What does this mean?)
[loaded] com.adobe.ARMDC.Communicator.plist [Click for support]
[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist [Click for support]
[loaded] com.adobe.fpsaud.plist [Click for support]
[loaded] com.avira.antivirus.dbcleaner.plist [Click for support]
[loaded] com.avira.antivirus.ipm.loader.plist [Click for support]
[running] com.avira.helper.watchdox.plist [Click for support]
[loaded] com.ea.origin.ESHelper.plist [Click for support]
[running] com.fitbit.galileod.plist [Click for support]
[loaded] com.macpaw.CleanMyMac2.Agent.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]
[loaded] net.tunnelblick.tunnelblick.tunnelblickd.plist [Click for support]
User Launch Agents: (What does this mean?)
[loaded] com.google.keystone.agent.plist [Click for support]
[loaded] com.macpaw.CleanMyMac2Helper.diskSpaceWatcher.plist [Click for support]
[loaded] com.macpaw.CleanMyMac2Helper.scheduledScan.plist [Click for support]
[loaded] com.macpaw.CleanMyMac2Helper.trashWatcher.plist [Click for support]
[running] com.spotify.webhelper.plist [Click for support]
[loaded] com.valvesoftware.steamclean.plist [Click for support]
[loaded] net.tunnelblick.tunnelblick.LaunchAtLogin.plist [Click for support]
User Login Items: (What does this mean?)
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Fitbit Connect Menubar Helper Application (/Applications/Fitbit Connect.app/Contents/MacOS/Fitbit Connect Menubar Helper.app)
Google Drive Application (/Applications/Google Drive.app)
Internet Plug-ins: (What does this mean?)
FlashPlayer-10.6: Version: 18.0.0.232 - SDK 10.6 [Click for support]
QuickTime Plugin: Version: 7.7.3
AdobePDFViewerNPAPI: Version: 15.008.20082 - SDK 10.8 [Click for support]
AdobePDFViewer: Version: 15.008.20082 - SDK 10.8 [Click for support]
Flash Player: Version: 18.0.0.232 - SDK 10.6 [Click for support]
Default Browser: Version: 600 - SDK 10.10
SharePointBrowserPlugin: Version: 14.0.0 [Click for support]
WebClient: Version: 1.0 - SDK 10.2 [Click for support]
Silverlight: Version: 5.1.40728.0 - SDK 10.6 [Click for support]
JavaAppletPlugin: Version: Java 8 Update 51 Check version
User internet Plug-ins: (What does this mean?)
BlueStacks Install Detector: Version: Unknown
Google Earth Web Plug-in: Version: 7.1 [Click for support]
Safari Extensions: (What does this mean?)
Open in Internet Explorer
Searchme Adware! [Click to remove]
3rd Party Preference Panes: (What does this mean?)
Flash Player [Click for support]
Java [Click for support]
Logitech Control Center [Click for support]
Logi Options Launcher [Click for support]
Tuxera NTFS [Click for support]
Time Machine: (What does this mean?)
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 1.11 TB Disk used: 448.62 GB
Destinations:
Time Machine [Local]
Total size: 2.00 TB
Total number of backups: 95
Oldest backup: 2013-08-02 16:35:24 +0000
Last backup: 2015-08-26 13:11:15 +0000
Size of backup disk: Adequate
Backup size 2.00 TB > (Disk used 448.62 GB X 3)
Top Processes by CPU: (What does this mean?)
7% firefox
4% Google Chrome
3% Activity Monitor
3% Google Chrome Helper(2)
2% FX DocuPrint CM115_118 w (ICA)
Top Processes by Memory: (What does this mean?)
1.43 GB kernel_task
786 MB firefox
590 MB Google Chrome Helper(2)
344 MB savapi
319 MB avguard.bin
Virtual Memory Information: (What does this mean?)
16.00 GB Free RAM
7.83 GB Used RAM (15.00 GB Cached)
0 B Swap Used
Diagnostics Information: (What does this mean?)
Aug 26, 2015, 06:36:47 PM ~/Library/Logs/DiagnosticReports/NotificationCenter_2015-08-26-183647_[redacted ].crash
Aug 26, 2015, 06:35:51 PM Self test - passed
First thing I would do is to get rid of CleanMyMac and the anti-virus ware running in OS X. They are both damaging to OS X and not needed.
Next I would update to 10.10.5 and check with Logitech to see if there is a control center update.
I've done all of that but it didn't seem to solve my issue
I will get rid of them, but there have been there for ages without any problems.
This problem only happened a week ago
Lag in changing brightness and volume
