Mattzda3
Level 1 (5 points)
iPhone

Q: Multiple Displays have problems with El Capitan

I upgraded to El Capitan last week. Immediately after restarting from the install, my 2nd and 3rd monitors no longer displayed anything. It's like they were turned off. I tried restarting, but nothing changed. I then tried switching cables to different ports and seeing what would happen with just a single monitor plugged in, here's what I found.

 

Machine Info:

MacPro

32GB RAM

AMD FirePro D500 3072 MB Graphics

 

27" Apple Cinema Display (x2) using Thunderbolt

13HD Wacom Cintiq using HDMI

 

-------------------------

When 1 monitor was plugged in, it would work fine.

When 2 were plugged in, only the first monitor would work

It seems that changing ports made no difference, only 1 monitor would work at any given time. I also had issues with some external drives failing to mount.

 

I called AppleCare and they had me reset the SMC on the MacPro. This seemed to fix it until I setup my second cinema display with Apple Calendar and Apple Mail in the new split view and quit the applications without exiting SplitView first. Doing this blacked out the second Cinema display and I had to repeat the SMC reset procedure (listed below). It happened again about an hour later after a restart, I called AppleCare again and the tech led me through the SMC reset steps again and all monitors began working properly again. Within the next few hours the same problem happened again...I am now back on Yosemite until I see something indicating this problem is fixed.

 

I noticed that Beta users had this problem documented quite a bit on the .3 release, but I saw that the .4 release seemed to fix the issue. Well, it did not. I caught lightening in a bottle and it's happening to me.

 

 

 

SMC Reset Procedure

1. Shut Down computer if it's not already shut down

2. Unplug all peripherals and computer for 30 seconds

3. Plug in computer to power and one monitor

4. Start-up and check to see if monitor is working

5. If monitor is working then plug-in second display and restart

 

This worked for me and I was able to plug up the other peripherals.

 

I'm not sure why the problem persists, but everything is completely stable and operates fine on Yosemite.

Mac Pro, OS X Yosemite (10.10.5), iMac 27" 8GB i7

Posted on Oct 5, 2015 9:36 AM

by Luis Sequeira1,Apple recommended
Luis Sequeira1 Luis Sequeira1
Level 6 (12,340 points)
Mac OS X
A:

Rdruhl wrote:

 

That is interesting that you have to use the Option key. Why did they not just make another button? And how did you know that you had to use the Option key? Anyway, I tried it, and I still do not get the Menu or Dock on the second display.

 

Try System Preferences->Mission Control

It appears that the setting for "Displays have separate Spaces" was lost. You need to have that box CHECKED in order to have menu bars (and the dock, if it is set to appear at the bottom) on every display.

You need to log out and log back in for this change to take effect.

Posted on Oct 12, 2015 8:48 AM

Close
Mattzda3

Q: Multiple Displays have problems with El Capitan

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  • Helpful answers

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  • by MazCanuck,

    MazCanuck MazCanuck Dec 18, 2015 3:45 PM in response to Mattzda3
    Level 1 (0 points)
    Dec 18, 2015 3:45 PM in response to Mattzda3

    This fix worked perfectly! Thanks!

  • by diegoCAS,

    diegoCAS diegoCAS Dec 21, 2015 3:22 PM in response to Luis Sequeira1
    Level 1 (0 points)
    Dec 21, 2015 3:22 PM in response to Luis Sequeira1

    Hello Everybody,

     

    I found that the problem happens when your mouse coursor is on the second display and it goes to sleep, At that point you loose the second monitor.

    My workaround (i found this in another forum) is:

    Define right lower corner as hot corner for "Put Display to sleep" to make it easy and handy the return back of the second monitor (System Prefereneces -> Mission Control -> Hot corners)

     

    When the problem comes up:

    1- Put the mouse in the lower right corner to get the display slept.

    2- Turn off second monitor and turn it back on to have it out of sleep state

    3- inmediately move the mouse or click to get first display out of sleep.

    Magic! 2nd display back on!!

     

    I think this is a simple bug related to energy management and one condition was not considered for certain type of monitors problably HDMI or HDMI thru thunderbolt adapter.

     

    I hope it helps!

    Regards!

    Diego

  • by CessfromGermany,

    CessfromGermany CessfromGermany Dec 27, 2015 11:28 AM in response to markfromsingerisland
    Level 1 (0 points)
    Dec 27, 2015 11:28 AM in response to markfromsingerisland

    did you ever get it fixed?

    I just try to connect my Imac and when I go to displays as many have said I have no option to click on buttons to detect monitors on Imac 27,2010 running El Capitan.I try disconecting reset and nothing.

    Please help!

  • by Luis Sequeira1,

    Luis Sequeira1 Luis Sequeira1 Dec 27, 2015 11:36 AM in response to CessfromGermany
    Level 6 (12,340 points)
    Mac OS X
    Dec 27, 2015 11:36 AM in response to CessfromGermany

    CessfromGermany wrote:

     

    did you ever get it fixed?

    I just try to connect my Imac and when I go to displays as many have said I have no option to click on buttons to detect monitors on Imac 27,2010 running El Capitan.I try disconecting reset and nothing.

    Please help!

     

    The "Detect Displays" is hidden by default. Oddly, in the Display Preferences you need to hold down the option key for it to appear.

    That said, it is unlikely to work that way if, as you say, disconnecting and reconnecting does not work.

    For most people with those issues, it seems to be related to other software conflicts.

    You may want to run Etrecheck and post its report.

  • by CessfromGermany,

    CessfromGermany CessfromGermany Dec 28, 2015 12:54 AM in response to Luis Sequeira1
    Level 1 (0 points)
    Dec 28, 2015 12:54 AM in response to Luis Sequeira1

    Thank you for your help Luis,I did what you said and here is my results:

    EtreCheck version: 2.6.6 (226)

    Report generated 28/12/15 09:30

    Runtime 3:10

    Download EtreCheck from http://etrecheck.com

     

    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: (What does this mean?)

        iMac (27-inch, Mid 2010)

        [Click for Technical Specifications]

        [Click for User Guide]

        iMac - model: iMac11,3

        1 3,2 GHz Intel Core i3 CPU: 2-core

        4 GB RAM Upgradeable

        [Click for upgrade instructions]

            BANK 0/DIMM0

                2 GB DDR3 1333 MHz ok

            BANK 1/DIMM0

                2 GB DDR3 1333 MHz ok

            BANK 0/DIMM1

                Empty  

            BANK 1/DIMM1

                Empty  

        Bluetooth: Old - Handoff/Airdrop2 not supported

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

     

    Video Information: (What does this mean?)

        ATI Radeon HD 5670 - VRAM: 512 MB

            iMac 2560 x 1440

     

    System Software: (What does this mean?)

        OS X El Capitan 10.11.2 (15C50) - Time since boot: less than an hour

     

    Disk Information: (What does this mean?)

        WDC WD1001FALS-40Y6A0 disk0 : (1 TB) (Rotational)

            EFI (disk0s1) <not mounted> : 210 MB

            Macintosh HD (disk0s2) / : 999.35 GB (743.49 GB free)

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

     

        OPTIARC DVD RW AD-5680H   ()

     

    USB Information: (What does this mean?)

        Apple Computer, Inc. IR Receiver

        Apple Inc. Built-in iSight

        Apple Card Reader

        Apple Inc. BRCM2046 Hub

            Apple Inc. Bluetooth USB Host Controller

     

    Gatekeeper: (What does this mean?)

        Mac App Store and identified developers

     

    Kernel Extensions: (What does this mean?)

            /Library/Extensions

        [not loaded]    com.sony.driver.dsccamDeviceInfo00 (1 - SDK 10.7) [Click for support]

     

            /System/Library/Extensions

        [not loaded]    com.devguru.driver.SamsungComposite (1.4.32 - SDK 10.6) [Click for support]

        [not loaded]    com.nike.sportwatch (1.0.0) [Click for support]

        [not loaded]    com.serato.usb.kext (1.8.4) [Click for support]

     

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

        [not loaded]    com.devguru.driver.SamsungACMControl (1.4.32 - SDK 10.6) [Click for support]

        [not loaded]    com.devguru.driver.SamsungACMData (1.4.32 - SDK 10.6) [Click for support]

        [not loaded]    com.devguru.driver.SamsungMTP (1.4.32 - SDK 10.5) [Click for support]

        [not loaded]    com.devguru.driver.SamsungSerial (1.4.32 - SDK 10.6) [Click for support]

     

    Startup Items: (What does this mean?)

        HP Trap Monitor: Path: /Library/StartupItems/HP Trap Monitor

        Startup items are obsolete in OS X Yosemite

     

    Launch Agents: (What does this mean?)

        [loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]

        [failed]    com.adobe.ARMDCHelper.cc24aef4a1b90ed56a...plist [Click for support]

        [failed]    com.adobe.AdobeCreativeCloud.plist [Click for support]

        [running]    com.canon.MFManager.plist [Click for support]

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

        [loaded]    com.hp.help.tocgenerator.plist [Click for support]

        [failed]    com.nike.nikeplusconnect.plist [Click for support]

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

        [running]    com.sony.SonyAutoLauncher.agent.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.SC.FPFeedbackService-1.0.plist [Click for support]

        [running]    com.adobe.adobeupdatedaemon.plist [Click for support]

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

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

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

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

     

    User Launch Agents: (What does this mean?)

        [failed]    com.BlueStacks.AppPlayer.LogRotator.plist [Click for support]

        [failed]    com.BlueStacks.AppPlayer.Service.plist [Click for support]

        [failed]    com.BlueStacks.AppPlayer.UpdaterAgent.plist [Click for support]

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

        [failed]    com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist - /System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framewo rk/Versions/A/Support/CSConfigDotMacCert: Executable not found!

        [loaded]    com.apple.SafariBookmarksSyncer.plist - /Applications/Safari.app/Contents/SafariSyncClient.app/Contents/MacOS/SafariSyn cClient: Executable not found!

        [failed]    com.facebook.videochat.[redacted].plist [Click for support]

     

    User Login Items: (What does this mean?)

        iTunesHelper    UNKNOWN Hidden (missing value)

        Dropbox    UNKNOWN Hidden (missing value)

        Desktop    Folder Hidden (~/Desktop)

        EOS Utility    Application Hidden (/Applications/Canon Utilities/EOS Utility/EOS Utility.app)

        Google Chrome    Application Hidden (/Applications/Google Chrome.app)

        K9-MacOptimizer    UNKNOWN  (missing value)

        PlayMemories Home    UNKNOWN  (missing value)

        AdobeResourceSynchronizer    UNKNOWN Hidden (missing value)

        TuneupMyMac    UNKNOWN  (missing value)

        Dropbox    UNKNOWN  (missing value)

        Mac Media Player    UNKNOWN  (missing value)

        KiesAgent    UNKNOWN Hidden (missing value)

        fuspredownloader    Application Hidden (~/Library/Application Support/.FUS/fuspredownloader.app)

        HPEventHandler    Application Hidden (/Library/Printers/hp/hpio/HPEventHandler.app)

     

    Other Apps: (What does this mean?)

        [running]    com.apple.xpc.launchd.oneshot.0x10000005.EtreCheck

        [running]    com.canon.EOS-Utility.48032

        [running]    com.google.Chrome.61792

        [running]    com.gopro.GoPro-Studio-GoPro-Importer

        [running]    com.hp.HPEventHandler.88672

        [loaded]    com.trendmicro.ATLoginItemHelper

        [running]    com.trendmicro.DrCleaner.116512

        [running]    jp.co.canon.cijscannerregister.91872

     

    Internet Plug-ins: (What does this mean?)

        Default Browser: Version: 601 - SDK 10.11

        Flip4Mac WMV Plugin: Version: 2.4.4.2 [Click for support]

        AdobeAAMDetect: Version: 3.0.0.0 - SDK 10.9 [Click for support]

        FlashPlayer-10.6: Version: 20.0.0.235 - SDK 10.6 [Click for support]

        AdobePDFViewerNPAPI: Version: 15.009.20077 - SDK 10.8 [Click for support]

        Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Click for support]

        QuickTime Plugin: Version: 7.7.3

        Flash Player: Version: 20.0.0.235 - SDK 10.6 Outdated! Update

        iPhotoPhotocast: Version: 7.0

        SharePointBrowserPlugin: Version: 14.2.3 - SDK 10.6 [Click for support]

        AdobePDFViewer: Version: 15.009.20077 - SDK 10.8 [Click for support]

        JavaAppletPlugin: Version: Java 8 Update 66 build 17 Check version

     

    Audio Plug-ins: (What does this mean?)

        SeratoVirtualAudioPlugIn: Version: 1.0.11 [Click for support]

     

    3rd Party Preference Panes: (What does this mean?)

        Flash Player  [Click for support]

        Flip4Mac WMV  [Click for support]

        Java  [Click for support]

     

    Time Machine: (What does this mean?)

        Mobile backups: OFF

        Auto backup: YES

        Volumes being backed up:

            Macintosh HD: Disk size: 999.35 GB Disk used: 255.86 GB

        Destinations:

            Data [Network]

            Total size: 0 B

            Total number of backups: 0

            Oldest backup: -

            Last backup: -

            Size of backup disk: Too small

                Backup size 0 B < (Disk used 255.86 GB X 3)

     

    Top Processes by CPU: (What does this mean?)

            10%    ScreenSaverEngine

             2%    WindowServer

             1%    fontd

             1%    kernel_task

             0%    askpermissiond

     

    Top Processes by Memory: (What does this mean?)

        465 MB    kernel_task

        221 MB    Google Chrome Helper(2)

        188 MB    mdworker(11)

        168 MB    ocspd

        160 MB    Google Chrome

     

    Virtual Memory Information: (What does this mean?)

        1.04 GB    Free RAM

        2.96 GB    Used RAM (947 MB Cached)

        0 B    Swap Used

     

    Diagnostics Information: (What does this mean?)

        Dec 28, 2015, 09:12:25 AM    Self test - passed

        Dec 25, 2015, 04:50:21 PM    /Library/Logs/DiagnosticReports/VTEncoderXPCService_2015-12-25-165021_[redacted ].cpu_resource.diag [Click for details]

        Dec 25, 2015, 04:46:32 PM    /Library/Logs/DiagnosticReports/VTEncoderXPCService_2015-12-25-164632_[redacted ].cpu_resource.diag [Click for details]

        Dec 25, 2015, 04:10:11 PM    /Library/Logs/DiagnosticReports/VTEncoderXPCService_2015-12-25-161011_[redacted ].cpu_resource.diag [Click for details]

        Dec 25, 2015, 04:06:25 PM    /Library/Logs/DiagnosticReports/VTEncoderXPCService_2015-12-25-160625_[redacted ].cpu_resource.diag [Click for details]

        Dec 25, 2015, 03:42:45 PM    /Library/Logs/DiagnosticReports/VTEncoderXPCService_2015-12-25-154245_[redacted ].cpu_resource.diag [Click for details]

     

  • by BereaVideo,

    BereaVideo BereaVideo Jan 4, 2016 1:33 PM in response to Luis Sequeira1
    Level 1 (0 points)
    Jan 4, 2016 1:33 PM in response to Luis Sequeira1

    Can anyone offer advise? Very strange in that I have two identical machines but this problems only appears on one. I've tried every solution in this thread, but my problem of the second monitor not appearing still persists.

     

    ---


    EtreCheck version: 2.6.6 (226)

    Report generated 1/4/16, 4:06 PM

    Runtime 1:34

    Download EtreCheck from http://etrecheck.com

     

    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: (What does this mean?)

        Mac Pro (Late 2013)

        [Click for Technical Specifications]

        [Click for User Guide]

        Mac Pro - model: MacPro6,1

        1 3.7 GHz Quad-Core Intel Xeon E5 CPU: 4-core

        16 GB RAM Upgradeable

        [Click for upgrade instructions]

            DIMM1

                4 GB DDR3 ECC 1866 MHz ok

            DIMM2

                4 GB DDR3 ECC 1866 MHz ok

            DIMM3

                4 GB DDR3 ECC 1866 MHz ok

            DIMM4

                4 GB DDR3 ECC 1866 MHz ok

        Bluetooth: Good - Handoff/Airdrop2 supported

        Wireless:  en2: 802.11 a/b/g/n/ac

     

    Video Information: (What does this mean?)

        AMD FirePro D500 - VRAM: 3072 MB

        AMD FirePro D500 - VRAM: 3072 MB

            Thunderbolt Display 2560 x 1440

     

    System Software: (What does this mean?)

        OS X El Capitan 10.11.2 (15C50) - Time since boot: less than an hour

     

    Disk Information: (What does this mean?)

        APPLE SSD SM1024F disk0 : (1 TB) (Solid State - TRIM: Yes)

            EFI (disk0s1) <not mounted> : 210 MB

            Station 2- OS Drive (disk0s2) / : 999.56 GB (886.78 GB free)

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

     

    USB Information: (What does this mean?)

        Apple Inc. BRCM20702 Hub

            Apple Inc. Bluetooth USB Host Controller

        VIA Labs, Inc.          USB2.0 Hub             

        Apple Inc. FaceTime HD Camera (Display)

        Apple Inc. Apple Thunderbolt Display

        Apple Inc. Display Audio

        Apple, Inc. Keyboard Hub

            Apple, Inc Apple Keyboard

        Apple Inc. FaceTime HD Camera (Display)

        Apple Inc. Apple Thunderbolt Display

        Apple Inc. Display Audio

        Lexar  USB_3_0 Reader 

        Focusrite Scarlett 2i4 USB

     

    Thunderbolt Information: (What does this mean?)

        Apple Inc. thunderbolt_bus_2

            G-Technology G-SPEED Studio R

        Apple Inc. thunderbolt_bus_1

        Apple Inc. thunderbolt_bus_0

            Apple Inc. Thunderbolt Display

            Apple Inc. Thunderbolt Display

     

    Configuration files: (What does this mean?)

        /etc/sysctl.conf - File exists but not expected

     

    Gatekeeper: (What does this mean?)

        Mac App Store and identified developers

     

    Kernel Extensions: (What does this mean?)

            /Library/Extensions

        [loaded]    com.promise.driver.stex (5.2.10 - SDK 10.9) [Click for support]

        [not loaded]    jp.panasonic.iokit.AJMPD1ProtocolService (1.0.1 - SDK 10.8) [Click for support]

        [not loaded]    jp.panasonic.iokit.p2drivefamily (3.2.1 - SDK 10.7) [Click for support]

     

            /Library/Extensions/P2DriveFamilyDriver.kext/Contents/PlugIns

        [not loaded]    jp.panasonic.iokit.P2FireWireSBP2 (4.2.0 - SDK 10.7) [Click for support]

        [not loaded]    jp.panasonic.iokit.PCD35Device (2.0.5 - SDK 10.7) [Click for support]

     

            /System/Library/Extensions

        [not loaded]    com.nvidia.CUDA (1.1.0) [Click for support]

     

    Startup Items: (What does this mean?)

        KeyAccess: Path: /Library/StartupItems/KeyAccess

        Startup items are obsolete in OS X Yosemite

     

    Launch Agents: (What does this mean?)

        [loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]

        [failed]    com.adobe.ARMDCHelper.cc24aef4a1b90ed56a...plist [Click for support]

        [running]    com.adobe.AdobeCreativeCloud.plist [Click for support]

        [loaded]    com.nvidia.CUDASoftwareUpdate.plist [Click for support]

        [loaded]    com.panasonic.p2csvc.plist [Click for support]

        [running]    com.sassafras.KeyAccess.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.SC.FPFeedbackService-1.0.plist [Click for support]

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

        [running]    com.adobe.adobeupdatedaemon.plist [Click for support]

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

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

        [running]    com.edb.launchd.postgresql-8.4.plist [Click for support]

        [loaded]    com.malwarebytes.MBAMHelperTool.plist [Click for support]

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

        [failed]    com.nvidia.cuda.launcher.plist [Click for support]

        [running]    com.sassafras.KeyAccess.plist [Click for support]

     

    User Launch Agents: (What does this mean?)

        [loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]

        [loaded]    com.digitalrebellion.PreferenceManagerAutoSave.plist [Click for support]

     

    User Login Items: (What does this mean?)

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

        VideoSan    UNKNOWN  (missing value)

        1- old video storage    UNKNOWN  (missing value)

        2- old video storage    UNKNOWN  (missing value)

        3- old video storage    UNKNOWN  (missing value)

        Station 1- Video Storage    Volume  (/Volumes/Station 1- Video Storage)

     

    Other Apps: (What does this mean?)

        [running]    com.adobe.acc.AdobeDesktopService.115872.BB483588-5CC6-43AC-B99A-AA866C631993

        [running]    com.adobe.accmac.58272

        [running]    com.apple.xpc.launchd.oneshot.0x10000005.EtreCheck

        [running]    com.panasonic.p2csvc.109152

        [running]    com.sassafras.KeyAccess.kass.115552

     

    Internet Plug-ins: (What does this mean?)

        Default Browser: Version: 601 - SDK 10.11

        AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7 [Click for support]

        Flip4Mac WMV Plugin: Version: 2.2.0.49 [Click for support]

        SlingPlayer: Version: Unknown - SDK 10.8 [Click for support]

        AdobeAAMDetect: Version: 3.0.0.0 - SDK 10.9 [Click for support]

        AdobePDFViewerNPAPI: Version: 15.008.20082 - SDK 10.8 [Click for support]

        FlashPlayer-10.6: Version: 20.0.0.235 - SDK 10.6 [Click for support]

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

        QuickTime Plugin: Version: 7.7.3

        Flash Player: Version: 20.0.0.235 - SDK 10.6 Outdated! Update

        iPhotoPhotocast: Version: 7.0

        SharePointBrowserPlugin: Version: 14.4.9 - SDK 10.6 [Click for support]

        AdobePDFViewer: Version: 15.008.20082 - SDK 10.8 [Click for support]

     

    User internet Plug-ins: (What does this mean?)

        NPRoblox: Version: 1, 2, 8, 25 - SDK 10.10 [Click for support]

     

    3rd Party Preference Panes: (What does this mean?)

        Flash Player  [Click for support]

        Flip4Mac WMV  [Click for support]

        KeyAccess  [Click for support]

        Perian  [Click for support]

     

    Time Machine: (What does this mean?)

        Skip System Files: NO

        Auto backup: YES

        Volumes being backed up:

        Destinations:

            Time Machine Raid 2 [Local]

            Total size: 8.00 TB

            Total number of backups: 32

            Oldest backup: 5/11/15, 2:41 PM

            Last backup: 12/22/15, 2:23 PM

            Size of backup disk: Excellent

                Backup size 8.00 TB > (Disk size 0 B X 3)

     

    Top Processes by CPU: (What does this mean?)

             7%    coresymbolicationd

             3%    WindowServer

             2%    spindump

             2%    fontd

             1%    com.apple.WebKit.WebContent(2)

     

    Top Processes by Memory: (What does this mean?)

        1.09 GB    kernel_task

        524 MB    mdworker(11)

        410 MB    com.apple.WebKit.WebContent(2)

        197 MB    Adobe CEF Helper(2)

        164 MB    Safari

     

    Virtual Memory Information: (What does this mean?)

        6.79 GB    Free RAM

        9.20 GB    Used RAM (3.97 GB Cached)

        0 B    Swap Used

     

    Diagnostics Information: (What does this mean?)

        Jan 4, 2016, 04:00:08 PM    Self test - passed

        Jan 4, 2016, 03:07:44 PM    ~/Library/Logs/DiagnosticReports/p2csvc_2016-01-04-150744_[redacted].crash [Click for details]

     

        Standard users cannot read /Library/Logs/DiagnosticReports.

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  • by Thomasso99,

    Thomasso99 Thomasso99 Jan 5, 2016 1:27 AM in response to Mattzda3
    Level 1 (0 points)
    Jan 5, 2016 1:27 AM in response to Mattzda3

    Similar problem here, bit more severe though: I have a rMBP (Mid 2015) with one external HP monitor, used as extended desktop.

    All worked fine under Yosemite, but since El Capitan (10.11.2), whenever the monitor is pliugged in, booting up leads to black monitor. And here is the difference:  in my setup, BOTH monitors stay black and the only way out is  to perform a hard reset. Not nice. currently, I have to unplug every time when booting up, works, but not nice. Also annoying at every update requiring a reboot. Obviously "Detect displays" in not much help here. Any new ideas out there? Hello, Apple software developers?

     

    Thomas :-)

  • by Luis Sequeira1,

    Luis Sequeira1 Luis Sequeira1 Jan 5, 2016 2:27 AM in response to BereaVideo
    Level 6 (12,340 points)
    Mac OS X
    Jan 5, 2016 2:27 AM in response to BereaVideo

    One of the things I notice in your report is that you seem to have two thunderbolt displays in the same bus:

     

    Apple Inc. thunderbolt_bus_2

            G-Technology G-SPEED Studio R

        Apple Inc. thunderbolt_bus_1

        Apple Inc. thunderbolt_bus_0

            Apple Inc. Thunderbolt Display

            Apple Inc. Thunderbolt Display

     

    Try connecting them to different buses and see if it alleviates or solves the problems.

    In case you don't know, the two bottom ports are in bus 0; the two on the left are in bus 1 and the two on the right are in bus 2.

     

    Also, it may well be that the problem is caused by software, though I don't see an obvious suspect.

  • by Luis Sequeira1,

    Luis Sequeira1 Luis Sequeira1 Jan 5, 2016 2:43 AM in response to Thomasso99
    Level 6 (12,340 points)
    Mac OS X
    Jan 5, 2016 2:43 AM in response to Thomasso99

    Thomasso99 wrote:

     

    Similar problem here, bit more severe though: I have a rMBP (Mid 2015) with one external HP monitor, used as extended desktop.

    All worked fine under Yosemite, but since El Capitan (10.11.2), whenever the monitor is pliugged in, booting up leads to black monitor. And here is the difference:  in my setup, BOTH monitors stay black and the only way out is  to perform a hard reset. Not nice. currently, I have to unplug every time when booting up, works, but not nice. Also annoying at every update requiring a reboot. Obviously "Detect displays" in not much help here. Any new ideas out there? Hello, Apple software developers?

     

    Thomas :-)

     

    Try booting in Safe Mode. Does the display work?

    Note: booting in Safe Mode is slow, and your mac will work slowly while in Safe Mode - that is normal.

     

    If the display works in Safe Mode (as I expect it will), this will indicate that there is some piece of software that is loaded in the normal boot process that is causing a conflict. The next step will be to run Etrecheck and post its report - often this gives a good idea of what may be the culprit.

  • by Mats Stromberg,

    Mats Stromberg Mats Stromberg Jan 5, 2016 10:45 AM in response to Luis Sequeira1
    Level 1 (0 points)
    Jan 5, 2016 10:45 AM in response to Luis Sequeira1

    Sorry for stepping in, in the middle of the thread...  I have the same issue that my Thunderbolt display suddenly goes off.

    I have an iMac (27-inch, Mid 2011) 8G i/ Mac.

    My problem didn't come directly with El Capitain upgrade.  It started after some time later after 10.11.2.

    The only solution I have right now is to pull out the thunderbolt cable from my iMac and then plug it back in again.  Then it might work for 1-2 days or sometimes just a few hours before the 2nd monitor goes blank again.

    Have no idea what to do to solve this. It is extremely annoying

     

    /Mats/

  • by karlreed,

    karlreed karlreed Jan 8, 2016 5:07 PM in response to millport
    Level 1 (0 points)
    Jan 8, 2016 5:07 PM in response to millport

    I had a problem with a brand new 15" Macbookpro, it would not see my samsung syncmaster. My wife's macbook air would see it ok. I did a safe boot and, that seemed to clear it up.

  • by gypsysvale,

    gypsysvale gypsysvale Jan 11, 2016 10:34 AM in response to BasementJack
    Level 1 (0 points)
    Jan 11, 2016 10:34 AM in response to BasementJack

    Hi,

    This did the trick for me.  I had on external monitory with and HDMI connection that would be lost if left the system on an came back the next day.. or at times while using it.  Hitting the OPTION key as described above did the trick.  Am curious as to why that was "hidden"...

  • by Echosend,

    Echosend Echosend Jan 18, 2016 6:50 PM in response to Mattzda3
    Level 1 (0 points)
    Jan 18, 2016 6:50 PM in response to Mattzda3

    I was having this problem too. Just upgraded to 10.11.2. I suppose I have no business expecting my old Mac Mini Late 2009 to handle this new OS but I've seen others handle it. I kept OS 10.6.8 on a separate partition because I don't have nearly the money necessary to upgrade all my older software.

     

    The Mac looked like it knew the second monitor was supposed to be there, old windows opened up there, the orientation was correct but the monitor stayed in standby mode, whether during a startup or a restart. Primary: VGA to Mini DVI via adapter, Secondary: VGA to Mini Display port via adapter. "Displays have separate spaces" checked. "Detect Displays" did not work. Powering the monitor on and then off, nothing. The only way I could get the second monitor to work was to unplug and replug that secondary monitor after startup. Also, just disconnecting the VGA plug from the VGA to Mini Display adapter was not sufficient, I had to unplug the adapter from the Mac and then replug it.

     

    After a Command-Option-P-R the problem sorta solved itself...but I ended up with a different problem: The Mac now prefers to startup under the older OS, even if I had last used the newer one. Once it starts under 10.6.8, both monitors once again work automatically. But when I try to restart via "Startup Disc" at System Preferences the newer OS does not show up. I have to do a restart holding down the Option key in order to select the new OS. Why would the Mac all-of-a-sudden be sorta-kinda-blind to the newer OS partition?

  • by Mats Stromberg,

    Mats Stromberg Mats Stromberg Jan 24, 2016 1:48 PM in response to Mats Stromberg
    Level 1 (0 points)
    Jan 24, 2016 1:48 PM in response to Mats Stromberg

    Release 10.11.3 seems to finally have saved this issue, so for sure a recommended update!!

     

    /Mats/

  • by Thomasso99,

    Thomasso99 Thomasso99 Jan 25, 2016 7:37 AM in response to Mats Stromberg
    Level 1 (0 points)
    Jan 25, 2016 7:37 AM in response to Mats Stromberg

    Unfortunately I cannot confirm: after updating to 10.11.3 still both screens black after reboot: Solution, unplug external display until  login stage. I was hopeful too, but sorry Apple: problem not solved, back to Os programming department. My Hardware: MBP 15"mid 2015, retina  External monitor HP EliteDisplay E2411.

    In the meantime I'm used to it. >;-) Monitor works perfect past booting. Everything was fine until El Capitan. ah well........

     

    Thomas :-)

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