I have the same problem here too Mr ReHab. I have boot with DSDT=No then in the probook installer i choose:
+ OS support kexts : 4x30s support kext
+ DSDT generator/patcher -> Probooks model: 4x30/6x60b kexts . Optional patches: atheros 9285 patch
+ SSDT generator
It still have no sound. In system settting it can't detect any sound device too
Here my IOReg Mr.Rehab
http://www.mediafire.com/download/xrd8f98n72z2f7x/IOreg.ioreg
I don't know why i can't attach it, may be i dont' have enough post ?
Thank you Mr.RehabMan ... Thank you so much
I am also having trouble with my 4530s not recognizing the built in soundcard. It recognizes my airplay but that is the only output. And I have 0 input options.
I have tried deleting the extra.dsdt and reinstalling from probookinstaller 6.1.9. With no success.
I have attached an updated IOregistry
View attachment 71592
# in Terminal
md5 /System/Library/Extensions/AppleHDA.kext/Contents/MacOS/AppleHDA