No sound on T60

[dgrey]

According to the below, I should have sound. I have done everything outlined, but still do not have sound working. Anyone have any suggestions? This is an 8744-5BU.

TIA

SOUND

1. Delete AppleHDA.kext:

* In Terminal, type: sudo rm -rf /System/Library/Extensions/AppleHDA.kext
* sudo rm -rf /System/Library/Extensions.mkext
* sudo rm -rf /System/Library/Extensions.kext


2) Edit AppleAzaliaAudio.kext:

* In Terminal, type: sudo pico /System/Library/Extensions/AppleAzaliaAudio.kext/Contents/Info.plist
* Search for (use hotkey= ctrl + w):
<key>IOHDAudioCodecVendorID</key>
* change the string to:
<string>0x10ec0882</string>
* Exit pico
* sudo pico /System/Library/Extensions/AppleAzaliaAudio.kext/Contents/PlugIns/AppleAzaliaController.kext/Contents/Info.plist
* Search for (use hotkey= ctrl + w):
<key>IOPCIPrimaryMatch</key>
* change the string to:
<string>0x27d88086</string>
* Exit pico


3) Clean up the system:

* In Terminal, type: sudo kextload /System/Library/Extensions/AppleAzaliaAudio.kext
* kextcache -k /System/Library/Extensions/


4) Then, reboot and enjoy sound out of two channel