Macbook pro (late 2011) 17 third usb port stopped working after latest yosemite upgrade...

the "third" port being the one closest to the user while the mbp is open in typical use position in front of the user
regardless of reboots or device plugged in, nothing works (anymore) in that port...

Hey Eyraud,
Welcome to Apple Support Communities.
Take a look at the article linked below, it provides general troubleshooting suggestions that may be able to resolve the USB connection issue with your MacBook Pro.
OS X Yosemite: If a USB device isn’t working
If those suggestions don't resolve the issue, try running the Apple Hardware Test as shown in this article:
Using Apple Hardware Test - Apple Support
Take care,
-Jason

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        Mar  2 10:00:04 supdrvDTraceInit: RTR0DbgKrnlInfoOpen failed with rc=-102.
        Mar  2 10:00:04 VBoxDrv: Failed to open kernel symbols, rc=-102
        Mar  2 10:06:25 rtR0InitNative: warning! failed to resolve special kernel symbols
        Mar  2 10:06:25 supdrvDTraceInit: RTR0DbgKrnlInfoOpen failed with rc=-102.
        Mar  2 10:06:25 VBoxDrv: Failed to open kernel symbols, rc=-102
        Mar  2 10:14:26 rtR0InitNative: warning! failed to resolve special kernel symbols
        Mar  2 10:14:26 supdrvDTraceInit: RTR0DbgKrnlInfoOpen failed with rc=-102.
        Mar  2 10:14:26 VBoxDrv: Failed to open kernel symbols, rc=-102
        Mar  3 09:49:14 rtR0InitNative: warning! failed to resolve special kernel symbols
        Mar  3 09:49:14 supdrvDTraceInit: RTR0DbgKrnlInfoOpen failed with rc=-102.
        Mar  3 09:49:14 VBoxDrv: Failed to open kernel symbols, rc=-102
        Mar  3 12:44:10 Warning: IOSurface 00000066 modified by process com.apple.WebKit using the GPU while surface is write locked by process com.apple.WebKit
        Mar  3 12:44:10 Warning: IOSurface 00000066 modified by process com.apple.WebKit using the GPU while surface is write locked by process com.apple.WebKit
    System log
        Mar  3 11:48:02 WindowServer: WSGetSurfaceInWindow : Invalid surface 828055384 for window 199
        Mar  3 11:48:02 WindowServer: WSGetSurfaceInWindow : Invalid surface 828055384 for window 199
        Mar  3 11:48:02 WindowServer: WSGetSurfaceInWindow : Invalid surface 828055384 for window 199
        Mar  3 11:59:33 WindowServer: WSGetSurfaceInWindow : Invalid surface 829050891 for window 217
        Mar  3 12:09:34 WindowServer: disable_update_timeout: UI updates were forcibly disabled by application "Microsoft Excel" for over 1.00 seconds. Server has re-enabled them.
        Mar  3 12:52:42 Mail: Set a breakpoint at CGSLogError to catch errors as they are logged.
        Mar  3 12:52:42 Mail: Invalid window requested in CGSWindowThawBackdrops : 382
        Mar  3 13:11:46 fseventsd: Logging disabled completely for device:1: /Volumes/Recovery HD
        Mar  3 13:12:00 WindowServer: disable_update_timeout: UI updates were forcibly disabled by application "System Preferences" for over 1.00 seconds. Server has re-enabled them.
        Mar  3 13:33:56 WindowServer: disable_update_timeout: UI updates were forcibly disabled by application "Spotlight" for over 1.00 seconds. Server has re-enabled them.
        Mar  3 13:47:48 com.apple.backupd: Error -35 while resolving alias to backup target
        Mar  3 13:47:48 com.apple.backupd: Backup failed with error 18: The backup disk could not be found.
        Mar  3 13:48:13 com.apple.backupd: Error -35 while resolving alias to backup target
        Mar  3 13:48:13 com.apple.backupd: Backup failed with error 18: The backup disk could not be found.
        Mar  3 13:51:26 WindowServer: WSGetSurfaceInWindow : Invalid surface 861039197 for window 342
        Mar  3 13:51:26 WindowServer: WSGetSurfaceInWindow : Invalid surface 861039197 for window 342
        Mar  3 13:51:26 WindowServer: WSGetSurfaceInWindow : Invalid surface 861039197 for window 342
        Mar  3 13:54:47 WindowServer: WSGetSurfaceInWindow : Invalid surface 948771229 for window 189
        Mar  3 13:54:50 sharingd: 13:54:50.400 : SDConnectionManager:: XPC connection invalidated
        Mar  3 14:08:12 fseventsd: Logging disabled completely for device:1: /Volumes/Recovery HD
        Mar  3 14:08:59 WindowServer: WSGetSurfaceInWindow : Invalid surface 948402577 for window 33
        Mar  3 14:08:59 WindowServer: WSGetSurfaceInWindow : Invalid surface 948402577 for window 33
        Mar  3 14:08:59 WindowServer: WSGetSurfaceInWindow : Invalid surface 948402577 for window 33
        Mar  3 14:08:59 WindowServer: WSGetSurfaceInWindow : Invalid surface 948402577 for window 33
        Mar  3 14:08:59 WindowServer: WSGetSurfaceInWindow : Invalid surface 948402577 for window 33
    launchd log
        Mar  1 09:06:51 com.apple.xpc.launchd.user.502.100005.Aqua: Could not read path: path = /Users/USER/Library/LaunchAgents, error = 2: No such file or directory
        Mar  1 09:06:52 com.apple.xpc.launchd.user.502.100005.Aqua: Could not import service from caller: caller = otherbsd.297, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  1 09:36:40 com.apple.xpc.launchd.user.501.100019.Aqua: Could not import service from caller: caller = otherbsd.545, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  1 09:45:11 com.apple.xpc.launchd.user.502.100030.Aqua: Could not read path: path = /Users/USER/Library/LaunchAgents, error = 2: No such file or directory
        Mar  1 09:45:12 com.apple.xpc.launchd.user.502.100030.Aqua: Could not import service from caller: caller = otherbsd.709, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  1 09:49:06 com.apple.internetaccounts: GUI session does not exist for service to join. It will be spawned without access to the GUI.
        Mar  1 09:53:20 com.apple.xpc.launchd.user.502.100006.Aqua: Could not read path: path = /Users/USER/Library/LaunchAgents, error = 2: No such file or directory
        Mar  1 09:53:20 com.apple.xpc.launchd.user.502.100006.Aqua: Could not import service from caller: caller = otherbsd.296, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  1 09:56:28 com.apple.xpc.launchd.user.502.100006.Aqua: Could not read path: path = /Users/USER/Library/LaunchAgents, error = 2: No such file or directory
        Mar  1 09:56:29 com.apple.xpc.launchd.user.502.100006.Aqua: Could not import service from caller: caller = otherbsd.297, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  1 12:56:18 com.apple.xpc.launchd.user.501.100006.Aqua: Could not import service from caller: caller = otherbsd.296, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  1 13:18:13 com.apple.xpc.launchd.user.501.100006.Aqua: Could not import service from caller: caller = otherbsd.296, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  1 13:59:40 com.apple.xpc.launchd.user.501.100005.Aqua: Could not import service from caller: caller = otherbsd.297, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  1 14:07:01 com.apple.xpc.launchd.user.502.100020.Aqua: Could not read path: path = /Users/USER/Library/LaunchAgents, error = 2: No such file or directory
        Mar  1 14:07:02 com.apple.xpc.launchd.user.502.100020.Aqua: Could not import service from caller: caller = otherbsd.477, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  1 14:07:12 com.apple.internetaccounts: GUI session does not exist for service to join. It will be spawned without access to the GUI.
        Mar  1 14:40:11 com.apple.iCloudHelper: GUI session does not exist for service to join. It will be spawned without access to the GUI.
        Mar  1 14:40:12 com.apple.internetaccounts: GUI session does not exist for service to join. It will be spawned without access to the GUI.
        Mar  1 14:48:04 com.apple.iCloudHelper: GUI session does not exist for service to join. It will be spawned without access to the GUI.
        Mar  1 14:48:05 com.apple.internetaccounts: GUI session does not exist for service to join. It will be spawned without access to the GUI.
        Mar  1 16:28:29 com.apple.xpc.launchd.user.501.100035.Aqua: Could not import service from caller: caller = otherbsd.722, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  2 10:00:24 com.apple.xpc.launchd.user.501.100005.Aqua: Could not import service from caller: caller = otherbsd.298, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  2 10:06:46 com.apple.xpc.launchd.user.501.100007.Aqua: Could not import service from caller: caller = otherbsd.300, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  2 10:14:31 com.apple.xpc.launchd.user.501.100005.Aqua: Could not import service from caller: caller = otherbsd.283, service = com.apple.photostream-agent, error = 119: Service is disabled
        Mar  3 09:49:19 com.apple.xpc.launchd.user.501.100005.Aqua: Could not import service from caller: caller = otherbsd.290, service = com.apple.photostream-agent, error = 119: Service is disabled
    Console log
        Feb 25 16:47:41 fontd: Failed to open read-only database, regenerating DB
        Mar  2 10:00:23 fontd: Failed to open read-only database, regenerating DB
    Loaded kernel extensions
        org.virtualbox.kext.VBoxDrv (4.3.22)
        org.virtualbox.kext.VBoxNetAdp (4.3.22)
        org.virtualbox.kext.VBoxNetFlt (4.3.22)
        org.virtualbox.kext.VBoxUSB (4.3.22)
    Daemons loaded
        cardo-updater
        com.adobe.fpsaud
        com.apple.AccountPolicyHelper
        com.apple.CodeSigningHelper
        com.apple.MobileFileIntegrity
        com.apple.awdd
        com.apple.backupd-auto
        com.apple.cache_delete
        com.apple.cfprefsd.xpc.daemon
        com.apple.cmio.registerassistantservice
        com.apple.coreduetd
        com.apple.coresymbolicationd
        com.apple.ctkd
        com.apple.diagnosticd
        com.apple.icloud.findmydeviced
        com.apple.iconservices.iconservicesagent
        com.apple.iconservices.iconservicesd
        com.apple.ifdreader
        com.apple.nehelper
        com.apple.networkd_privileged
        com.apple.nsurlsessiond_privileged
        com.apple.nsurlstoraged
        com.apple.sandboxd
        com.apple.secinitd
        com.apple.softwareupdated
        com.apple.spindump
        com.apple.systemadministration.writeconfig
        com.apple.systemstatsd
        com.apple.tccd.system
        com.apple.watchdogd
        com.apple.wdhelper
        com.apple.xpc.smd
        com.microsoft.office.licensing.helper
        com.oracle.java.Helper-Tool
        com.oracle.java.JavaUpdateHelper
        com.rogueamoeba.instanton-agent
        jp.co.canon.MasterInstaller
        org.cups.cupsd
        org.macosforge.xquartz.privileged_startx
    Agents loaded
        com.apple.CloudPhotosConfiguration
        com.apple.DataDetectorsDynamicData
        com.apple.InputMethodKit.UserDictionary
        com.apple.MailServiceAgent
        com.apple.cfprefsd.xpc.agent
        com.apple.imdpersistence.IMDPersistenceAgent
        com.apple.internetaccounts
        com.apple.pluginkit.pkd
        com.apple.sbd
        com.apple.secd
        com.apple.secinitd
        com.apple.security.cloudkeychainproxy3
        com.apple.tccd
    User login items
        Activity Monitor
        - /Applications/Utilities/Activity Monitor.app
    Safari extensions
        AdBlock
        - com.betafish.adblockforsafari
        DuckDuckGo
        - com.duckduckgo.safari
        Ghostery
        - com.betteradvertising.ghostery
    Prefetching: Off
    Widgets
        iCal
    iCloud errors
        bird 62
        cloudd 19
        comapple.InputMethodKit.UserDictionary 4
        CallHistorySyncHelper 4
        Safari 1
    Continuity errors
        sharingd 7
    Restricted files: 97
    Lockfiles: 164
    Contents of /Library/LaunchAgents/com.oracle.java.Java-Updater.plist
        - mod date: Jan 31 13:16:59 2014
        - checksum: 297651013
        <?xml version="1.0" encoding="UTF-8"?>
        <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
        <plist version="1.0">
        <dict>
        <key>Label</key>
        <string>com.oracle.java.Java-Updater</string>
        <key>ProgramArguments</key>
        <array>
        <string>/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Resources/Java Updater.app/Contents/MacOS/Java Updater</string>
        <string>-bgcheck</string>
        </array>
        <key>StandardErrorPath</key>
        <string>/dev/null</string>
        <key>StandardOutPath</key>
        <string>/dev/null</string>
        <key>StartCalendarInterval</key>
        <dict>
        <key>Hour</key>
        <integer>10</integer>
        <key>Minute</key>
        <integer>38</integer>
        <key>Weekday</key>
        <integer>2</integer>
        </dict>
        </dict>
        ...and 1 more line(s)
    Contents of /Library/LaunchAgents/org.macosforge.xquartz.startx.plist
        - mod date: Nov 11 11:07:49 2013
        - checksum: 2451978492
        <?xml version="1.0" encoding="UTF-8"?>
        <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
        <plist version="1.0">
        <dict>
        <key>Label</key>
        <string>org.macosforge.xquartz.startx</string>
        <key>ProgramArguments</key>
        <array>
        <string>/opt/X11/lib/X11/xinit/launchd_startx</string>
        <string>/opt/X11/bin/startx</string>
        <string>--</string>
        <string>/opt/X11/bin/Xquartz</string>
        </array>
        <key>Sockets</key>
        <dict>
        <key>org.macosforge.xquartz:0</key>
        <dict>
        <key>SecureSocketWithKey</key>
        <string>DISPLAY</string>
        </dict>
        </dict>
        <key>ServiceIPC</key>
        <true/>
        <key>EnableTransactions</key>
        <true/>
        ...and 2 more line(s)
    Contents of /Library/LaunchDaemons/com.rogueamoeba.instanton-agent.plist
        - mod date: Mar 25 19:00:08 2014
        - checksum: 3487242040
        <?xml version="1.0" encoding="UTF-8"?>
        <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
        <plist version="1.0">
        <dict>
        <key>Label</key>
        <string>com.rogueamoeba.instanton-agent</string>
        <key>MachServices</key>
        <dict>
        <key>com.rogueamoeba.instanton-agent</key>
        <true/>
        </dict>
        <key>Program</key>
        <string>/Library/Audio/Plug-Ins/HAL/InstantOn.driver/Contents/MacOS/instanton-a gent</string>
        <key>ProgramArguments</key>
        <array>
        <string>instanton-agent</string>
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        <key>ThrottleInterval</key>
        <integer>0</integer>
        </dict>
        </plist>
    Contents of /Library/LaunchDaemons/jp.co.canon.MasterInstaller.plist
        - mod date: Nov 25 22:39:19 2013
        - checksum: 1894334785
        <?xml version="1.0" encoding="UTF-8"?>
        <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
        <plist version="1.0">
        <dict>
        <key>Label</key>
        <string>jp.co.canon.MasterInstaller</string>
        <key>ProgramArguments</key>
        <array>
        <string>/Library/PrivilegedHelperTools/jp.co.canon.MasterInstaller</string>
        </array>
        <key>ServiceIPC</key>
        <true/>
        <key>Sockets</key>
        <dict>
        <key>MasterSocket</key>
        <dict>
        <key>SockFamily</key>
        <string>Unix</string>
        <key>SockPathMode</key>
        <integer>438</integer>
        <key>SockPathName</key>
        <string>/var/run/jp.co.canon.MasterInstaller.socket</string>
        <key>SockType</key>
        <string>Stream</string>
        </dict>
        ...and 3 more line(s)
    Contents of /Library/LaunchDaemons/org.virtualbox.startup.plist
        - mod date: Mar  1 13:56:03 2015
        - checksum: 3094394405
        <?xml version="1.0" encoding="UTF-8"?>
        <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
        <plist version="1.0">
        <dict>
            <key>Label</key>             <string>org.virtualbox.startup</string>
            <key>Disabled</key>          <false/>
            <key>RunAtLoad</key>         <true/>
            <key>KeepAlive</key>         <false/>
            <key>LaunchOnlyOnce</key>    <true/>
            <key>ProgramArguments</key>
                <array>
                    <string>/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh</string>
                    <string>restart</string>
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    Contents of /private/etc/ssh_config
        - mod date: Jan 20 11:13:19 2013
        - checksum: 1281775184
         Host *
           SendEnv LANG LC_*
        Host *
            XAuthLocation /opt/X11/bin/xauth
    Contents of Library/LaunchAgents/com.apple.SafariBookmarksSyncer.plist
        - mod date: Nov 11 12:53:23 2010
        - checksum: 1213721873
        <?xml version="1.0" encoding="UTF-8"?>
        <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
        <plist version="1.0">
        <dict>
        <key>Label</key>
        <string>com.apple.Safari</string>
        <key>LimitLoadToSessionType</key>
        <string>Aqua</string>
        <key>ProgramArguments</key>
        <array>
        <string>/Applications/Safari.app/Contents/SafariSyncClient.app/Contents/MacOS/S afariSyncClient</string>
        <string>--sync</string>
        <string>com.apple.Safari</string>
        <string>--entitynames</string>
        <string>com.apple.bookmarks.Bookmark,com.apple.bookmarks.Folder</string>
        </array>
        <key>RunAtLoad</key>
        <false/>
        <key>ThrottleInterval</key>
        <integer>60</integer>
        <key>WatchPaths</key>
        <array>
        <string>/Users/USER/Library/Safari/Bookmarks.plist</string>
        </array>
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    Contents of Library/LaunchAgents/org.virtualbox.vboxwebsrv.plist
        - mod date: Mar  1 13:56:19 2015
        - checksum: 3654809970
        <?xml version="1.0" encoding="UTF-8"?>
        <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
        <plist version="1.0">
        <dict>
          <key>Disabled</key>
          <true/>
          <key>KeepAlive</key>
          <false/>
          <key>Label</key>
          <string>org.virtualbox.vboxwebsvc</string>
          <key>Program</key>
          <string>/Applications/VirtualBox.app/Contents/MacOS/vboxwebsrv</string>
          <key>Sockets</key>
            <dict>
            <key>Listeners</key>
            <dict>
              <key>SockServiceName</key>
              <string>18083</string>
              <key>SockType</key>
              <string>stream</string>
              <key>SockFamily</key>
              <string>IPv4</string>
            </dict>
          </dict>
        </dict>
        ...and 1 more line(s)
    Bundles (new)
        /Applications/VirtualBox.app
        - org.virtualbox.app.VirtualBox
        /Users/USER/Downloads/EtreCheck.app
        - com.etresoft.EtreCheck
    Installations
        Office 2011 14.4.6 Update: 14/11/2014 3:29 pm
        Adobe Flash Player: 12/11/2014 7:12 pm
        Java 7 Update 71: 5/11/2014 1:23 pm
        Canon ScanGear: 29/10/2014 5:15 pm
        Adobe Flash Player: 26/10/2014 9:30 am
    Elapsed time (sec): 823

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