Suddenly, My MBP sound isn't working. I have tried couple of way to resolve the problem but nothing is working. Here is some of the screenshot:
No, input or output sound. I would like to know
1) How can I resolve this?
2) Can you suggest any software, that can route my sound in iPad/iPhone.
After running this command :
kextstat > ~/Desktop/kexts.txt
I got only this com.apple.iokit.IOAudioFamily But, didn't found com.apple.driver.AudioAUUC
Update - 2:
As Buscar suggested to check for
AudioAUUC.kext file in my
/System/Library/Extensions. Yes, I found AudioAUUC.kext file in that folder. As you can see in the image
No indicates, it's not loading.
LOG UPDATED: http://pastebin.com/Qgj0WcpC
New Log: http://pastebin.com/R2RPZZZN
Update - 3:
As suggested to
Resetting the PRAM didn't worked. I was able to update SMC and not EFI Firmware. It's showing an error:Software is not supported on my system.
However, I also tried to load and unload Apple High Definition Audio (HDA)
AppleHDA.kext. But, while loading this error are showing
1/24/15 8:29:57.000 PM kernel: Sound assertion in AppleHDACodecGeneric at line 1280 1/24/15 8:29:57.000 PM kernel: Sound assertion in AppleHDACodecGeneric at line 1580 1/24/15 8:29:57.000 PM kernel: Sound assertion in AppleHDACodecGeneric at line 1073 1/24/15 8:29:57.000 PM kernel: Sound assertion in AppleHDACodecGeneric at line 1073
Update - 4:
As you can see
com.apple.audio.sandboxhelper is missing.
update - 5:
I tried all the things, you said to do. But, still I can't hear any sound. I tried
ioreg -i. But, i couldn't find anything called
AudioAUUCDriver. You can check here
Update - 6:
Guys, I can hear sound through a application called PocketAudio. My microphone and speaker both are working!! I just want to know, is there any problem in my hardware or in OS? If I buy a wireless headphone, should it work?