X220t bizarre screen failure question

Just yesterday after a reboot my screen on my x220t tablet (with windows 8 installed) stopped dispaying anything. Right now I have it hooked to my HDTV through the display port. But here is where it gets weird:
The laptop panel backlight stil functions and I can use the blue function keys to raise or lower the backlight brightness.
The wireless and HDD access icons on the bottom of the panels bezel still function.
the touchscreen itself still functions.
Like I mentioned above the display port still functions.
I'm guessing the panel itself has died or the connection between the panel and the MB/laptop itself has failed.
Right now I'm trying to figure out where to start and what the most likely failure is before I crack it open. I've got experience fixing IBM, Dell, HP, and a few other brands of laptops so I'm not worried about not being able to fix it myself, the main thing I need to do first is try and iron out what has failed so I don't have to take shots in the dark with which components to replace.
If anyone has any suggestions I would very much appreciate them!!
bp

Do you have a warranty? Usually, unplugged cable yields a white screen. Yours sounds like a failed panel

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Hi autiger
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Hi Apple Support Community !
I have a macbook pro 13 2012. I updated to mavricks 2 months ago and I started to have some "random" crashes with a bizarre screen.
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Hardware Information:
          MacBook Pro (13-inch, Mid 2012)
          MacBook Pro - model: MacBookPro9,2
          1 2.5 GHz Intel Core i5 CPU: 2 cores
          8 GB RAM
Video Information:
          Intel HD Graphics 4000 - VRAM: 1024 MB
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
          AirPlay: Version: 1.9 - SDK 10.9
          AppleAVBAudio: Version: 2.0.0 - SDK 10.9
          iSightAudio: Version: 7.7.3 - SDK 10.9
Startup Items:
          VirtualBox: Path: /Library/StartupItems/VirtualBox
System Software:
          OS X 10.9 (13A603) - Uptime: 0 days 0:12:44
Disk Information:
          APPLE HDD TOSHIBA MK5065GSXF disk0 : (500,11 GB)
                    EFI (disk0s1) <not mounted>: 209,7 MB
                    Macintosh HD (disk0s2) /: 499,25 GB (213,02 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
          MATSHITADVD-R   UJ-8A8
USB Information:
          Apple Inc. FaceTime HD Camera (Built-in)
          USB Flash Disk 2 GB
                    ADAM (disk1s1) /Volumes/ADAM: 2 GB (1,97 GB free)
          Apple Inc. Apple Internal Keyboard / Trackpad
          Apple Inc. BRCM20702 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Apple Computer, Inc. IR Receiver
FireWire Information:
Thunderbolt Information:
          Apple Inc. thunderbolt_bus
Kernel Extensions:
          org.virtualbox.kext.VBoxDrv          (4.2.12)
          org.virtualbox.kext.VBoxUSB          (4.2.12)
          com.globaldelight.driver.BoomDevice          (1.1 - SDK 10.9)
          com.Cycling74.driver.Soundflower          (1.6.6 - SDK 10.6)
          net.telestream.driver.TelestreamAudio          (1.1.0 - SDK 10.8)
Problem System Launch Daemons:
Problem System Launch Agents:
          [loaded] com.paragon.NTFS.notify.plist
Launch Daemons:
          [loaded] cn.com.zte.PPPMonitor.plist
          [loaded] com.adobe.fpsaud.plist
          [not loaded] com.adobe.SwitchBoard.plist
          [loaded] com.google.keystone.daemon.plist
          [loaded] com.microsoft.office.licensing.helper.plist
          [loaded] com.oracle.java.Helper-Tool.plist
Launch Agents:
          [loaded] cn.com.zte.usbswapper.plist
          [not loaded] com.adobe.AAM.Updater-1.0.plist
          [loaded] com.divx.dms.agent.plist
          [loaded] com.divx.update.agent.plist
          [loaded] com.google.keystone.agent.plist
          [loaded] com.oracle.java.Java-Updater.plist
User Launch Agents:
          [loaded] com.adobe.AAM.Updater-1.0.plist
          [loaded] com.adobe.ARM.[...].plist
          [loaded] com.facebook.videochat.[redacted].plist
          [not loaded] org.virtualbox.vboxwebsrv.plist
User Login Items:
          gfxCardStatus
          Boom
          iTunesHelper
          Flux
          Google Drive
          Dropbox
          Caffeine
          fuspredownloader
3rd Party Preference Panes:
          Flash Player
          Flip4Mac WMV
          Java
          Paragon NTFS for Mac ® OS X
Internet Plug-ins::
          o1dbrowserplugin: Version: 4.9.1.16010
          OVSHelper: Version: 1.1
          Default Browser: Version: 537 - SDK 10.9
          AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7
          Flip4Mac WMV Plugin: Version: 2.4.4.2
          AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6
          AdobePDFViewerNPAPI: Version: 11.0.04 - SDK 10.6
          DivX Web Player: Version: 3.0.1.5 - SDK 10.5
          FlashPlayer-10.6: Version: 11.9.900.170 - SDK 10.6
          Flash Player: Version: 11.9.900.170 - SDK 10.6
          iPhotoPhotocast: Version: 7.0 - SDK 10.8
          googletalkbrowserplugin: Version: 4.9.1.16010
          npgtpo3dautoplugin: Version: 0.1.44.29 - SDK 10.5
          AdobePDFViewer: Version: 11.0.04 - SDK 10.6
          QuickTime Plugin: Version: 7.7.3
          SharePointBrowserPlugin: Version: 14.3.4 - SDK 10.6
          JavaAppletPlugin: Version: Java 7 Update 25 Outdated! Update
User Internet Plug-ins::
          ConduitNPAPIPlugin: Version: 1.0 - SDK 10.6
Bad Fonts:
          None
Old applications:
          DMSLaunch:          Version: 1.0 - SDK 10.5
                    /Library/Application Support/DivX/DMSLaunch.app
          DivX Player:          Version: 10.0.2 (Build 11.2.1.1) - SDK 10.5
                    /Applications/DivX Player.app
          DivXMediaServer:          Version: 10.0 - SDK 10.5
                    /Library/Application Support/DivX/DivXMediaServer.app
          DivXTransferWizard:          Version: 10.0.0 (Build 10.0.1.41) - SDK 10.5
                    /Library/Application Support/DivX/DivXTransferWizard.app
          DivXUpdate:          Version: 1.0 - SDK 10.5
                    /Library/Application Support/DivX/DivXUpdate.app
          FacebookVideoCalling:          Version: 1.2.0.157 - SDK 10.5
                    /Users/adam/Library/Application Support/Facebook/video/1.2.0.158/FacebookVideoCalling.app
          Keynote:          Version: 5.3 - SDK 10.5
                    /Applications/iWork '09/Keynote.app
          Microsoft Alerts Daemon:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Microsoft Alerts Daemon.app
          Microsoft AutoUpdate:          Version: 2.3.6 - SDK 10.4
                    /Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
          Microsoft Chart Converter:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Microsoft Chart Converter.app
          Microsoft Clip Gallery:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Microsoft Clip Gallery.app
          Microsoft Database Daemon:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Microsoft Database Daemon.app
          Microsoft Database Utility:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Microsoft Database Utility.app
          Microsoft Document Connection:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Microsoft Document Connection.app
          Microsoft Excel:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Microsoft Excel.app
          Microsoft Graph:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Microsoft Graph.app
          Microsoft Language Register:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Additional Tools/Microsoft Language Register/Microsoft Language Register.app
          Microsoft Office Reminders:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Microsoft Office Reminders.app
          Microsoft Outlook:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Microsoft Outlook.app
          Microsoft PowerPoint:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Microsoft PowerPoint.app
          Microsoft Ship Asserts:          Version: 1.1.4 - SDK 10.4
                    /Library/Application Support/Microsoft/MERP2.0/Microsoft Ship Asserts.app
          Microsoft Upload Center:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Microsoft Upload Center.app
          Microsoft Word:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Microsoft Word.app
          My Day:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/My Day.app
          Numbers:          Version: 2.3 - SDK 10.5
                    /Applications/iWork '09/Numbers.app
          Open XML for Excel:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Open XML for Excel.app
          Pages:          Version: 4.3 - SDK 10.5
                    /Applications/iWork '09/Pages.app
          Signalement d'erreurs Microsoft:          Version: 2.2.9 - SDK 10.4
                    /Library/Application Support/Microsoft/MERP2.0/Microsoft Error Reporting.app
          Solver:          Version: 1.0 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/Add-Ins/Solver.app
          SyncServicesAgent:          Version: 14.3.4 - SDK 10.5
                    /Applications/Microsoft Office 2011/Office/SyncServicesAgent.app
          Wondershare Helper Compact:          Version: 2.2.6.4 - SDK 10.5
                    /Users/adam/Library/Application Support/Helper/Wondershare Helper Compact.app
          dynamiclinkmanager:          Version: 6.0.0 - SDK 10.5
                    /Library/Application Support/Adobe/Common/dynamiclink/CS6/dynamiclinkmanager.app
          dynamiclinkmediaserver:          Version: 6.0.1 - SDK 10.5
                    /Library/Application Support/Adobe/Common/dynamiclinkmediaserver/1.0/dynamiclinkmediaserver.app
Time Machine:
          Time Machine not configured!
Top Processes by CPU:
               9%          WindowServer
               7%          Google Chrome
               2%          hidd
               1%          EtreCheck
               0%          Google Drive
Top Processes by Memory:
          229 MB          Google Chrome
          188 MB          com.apple.IconServicesAgent
          180 MB          Finder
          172 MB          Viber
          147 MB          mds_stores
Virtual Memory Statistics:
          4.12 GB          Free RAM
          2.53 GB          Active RAM
          457 MB          Inactive RAM
          925 MB          Wired RAM
          784 MB          Page-ins
          0 B          Page-outs

Hi adamitoma,
If you are having intermittent crashing or quitting issues after updating to Mavericks, you may find the following article helpful:
OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem."
http://support.apple.com/kb/TS4636
Regards,
- Brenden

Grey screen with question mark on boot up.

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hi,
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X220t bizarre screen failure question

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