No audio from hdmi on macbook pro 2011

I just upgraed to Lion but now I can't get audio out of my HDMI. Any thoughts?
Using macbook pro 2011 OS Lion, connecting to Samsung HD tv via HDMI.

Hi tehrabyte. There are no Windows 8.1 drivers for your model on HP's driver site. This download has worked for a few people with audio issues when going to 8.1. Try uninstalling your existing audio drivers and reinstalling this driver. Please let me know if it works.
IDT High-Definition (HD) Audio Driver:
http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?cc=us&lc=en&softwareitem=ob-124012-1
TwoPointOh
I work on behalf of HP
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Hardware Information:
          MacBook Pro (13-inch, Late 2011)
          MacBook Pro - model: MacBookPro8,1
          1 2.4 GHz Intel Core i5 CPU: 2 cores
          4 GB RAM
Video Information:
          Intel HD Graphics 3000 - VRAM: 384 MB
System Software:
          OS X 10.9.1 (13B42) - Uptime: 0 days 0:5:25
Disk Information:
          Hitachi HTS545050B9A302 disk0 : (500.11 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    Macintosh HD (disk0s2) /: 499.25 GB (361.28 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
          MATSHITADVD-R   UJ-8A8
USB Information:
          Apple Computer, Inc. IR Receiver
          Apple Inc. FaceTime HD Camera (Built-in)
          Apple Inc. BRCM2070 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Apple Inc. Apple Internal Keyboard / Trackpad
FireWire Information:
Thunderbolt Information:
          Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
          [loaded] com.adobe.fpsaud.plist 3rd-Party support link
Launch Agents:
User Launch Agents:
          [loaded] com.google.keystone.agent.plist 3rd-Party support link
User Login Items:
          Dropbox
Internet Plug-ins:
          LogMeInSafari64: Version: 1.0.730 3rd-Party support link
          Google Earth Web Plug-in: Version: 6.0 3rd-Party support link
          Default Browser: Version: 537 - SDK 10.9
          OfficeLiveBrowserPlugin: Version: 12.3.6 3rd-Party support link
          Silverlight: Version: 4.0.50401.0 3rd-Party support link
          FlashPlayer-10.6: Version: 11.9.900.170 - SDK 10.6 3rd-Party support link
          LogMeIn: Version: 1.0.730 3rd-Party support link
          Flash Player: Version: 11.9.900.170 - SDK 10.6 Outdated! Update
          QuickTime Plugin: Version: 7.7.3
          LogMeInSafari32: Version: 1.0.730 3rd-Party support link
          iPhotoPhotocast: Version: 7.0
          JavaAppletPlugin: Version: 14.8.0 - SDK 10.9 Outdated! Update
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
3rd Party Preference Panes:
          Flash Player 3rd-Party support link
Bad Fonts:
          None
Old Applications:
          /Library/Application Support/Microsoft/MERP2.0
                    Microsoft Error Reporting:          Version: 2.2.9 - SDK 10.4 3rd-Party support link
                    Microsoft Ship Asserts:          Version: 1.1.4 - SDK 10.4 3rd-Party support link
          SuperDuper!:          Version: 2.7.1 - SDK 10.4 3rd-Party support link
          Microsoft AutoUpdate:          Version: 2.3.6 - SDK 10.4 3rd-Party support link
                    /Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
Time Machine:
          Time Machine not configured!
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               7%          Safari
               6%          Dropbox
               5%          WindowServer
               3%          hidd
               2%          com.apple.WebKit.Networking
Top Processes by Memory:
          119 MB          com.apple.IconServicesAgent
          106 MB          Safari
          94 MB          Finder
          94 MB          Dropbox
          94 MB          Mail
Virtual Memory Information:
          1.26 GB          Free RAM
          1.44 GB          Active RAM
          311 MB          Inactive RAM
          1014 MB          Wired RAM
          251 MB          Page-ins
          0 B          Page-outs

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Click the Clear Display icon in the toolbar. Then try the action that you're having trouble with again. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message (command-V).
When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
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