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Sound randomly stops working

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RehabMan said:
Use kernel flag -f or Clover option (hit spacebar). Note that recent Clover versions have removed it, so you need -f.
Click to expand...
*Deleted, look at the next comment*
 
Last edited:
RehabMan said:
Use kernel flag -f or Clover option (hit spacebar). Note that recent Clover versions have removed it, so you need -f.
Click to expand...
Still no sound...
My friend @ben9923 told me to boot with safe mode, rebuild cache from there and then boot normally and it fixed the problem, but then I turned my laptop off and on again the next day there was no sound again
(sorry for the double message, I forgot I already replied)
 
alonstarikov4 said:
Still no sound...
My friend @ben9923 told me to boot with safe mode, rebuild cache from there and then boot normally and it fixed the problem, but then I turned my laptop off and on again the next day there was no sound again
(sorry for the double message, I forgot I already replied)
Click to expand...

It is likely a problem with AppleALC. Use patched AppleHDA instead.
 
RehabMan said:
It is likely a problem with AppleALC. Use patched AppleHDA instead.
Click to expand...
Sorry for the very late response, hadn't had the time to mess around with it in the last couple of weeks.
Iv'e tried a patched AppleHDA from Mirone's AppleHDA Patcher, and the same thing happened again: the sound was working until I restarted my laptop.
Attached Problem Reporting files and terminal output is here:
Code: 
Alons-MacBook-Pro:RehabMan alonstarikov4$ kextstat|grep -y acpiplat
   13    2 0xffffff7f82d79000 0x66000    0x66000    com.apple.driver.AppleACPIPlatform (5.0) 867C81BE-EA01-3A65-89F4-06D78E6514CA <12 11 7 6 5 4 3 1>

Alons-MacBook-Pro:RehabMan alonstarikov4$ kextstat|grep -y appleintelcpu

Alons-MacBook-Pro:RehabMan alonstarikov4$ kextstat|grep -y applelpc
   78    0 0xffffff7f825d5000 0x3000     0x3000     com.apple.driver.AppleLPC (3.1) F51595F0-F9B1-3B85-A1C3-F984DAD4107E <77 12 5 4 3>

Alons-MacBook-Pro:RehabMan alonstarikov4$ kextstat|grep -y applehda
   82    1 0xffffff7f82a5b000 0x1d000    0x1d000    com.apple.driver.AppleHDAController (278.56) CFB0D0AE-F09A-3660-8F95-7A02FD5FBF07 <81 80 72 12 7 6 5 4 3 1>
  115    0 0xffffff7f82bdd000 0xb4000    0xb4000    com.apple.driver.AppleHDA (278.56) A4EB06C9-A40A-39EF-9C4A-D7F23DB9A2F9 <114 98 82 81 80 72 6 5 4 3 1>
  116    0 0xffffff7f82a57000 0x2000     0x2000     com.apple.driver.AppleHDAHardwareConfigDriver (278.56) 06C594F4-3E5D-3BF4-A783-90C741DAA3F0 <4 3>

Code: 
Alons-MacBook-Pro:~ alonstarikov4$ sudo touch /System/Library/Extensions && sudo kextcache -u /
Password:
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooPS2Trackpad.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooPS2Mouse.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooPS2Keyboard.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooPS2Controller.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooI2C.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext SATA-100-series-unsupported.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext RealtekRTL8111.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext IntelBacklight.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext FakeSMC.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext CodecCommander.kext
kext-dev-mode allowing invalid signature -67013 0xFFFFFFFFFFFEFA3B for kext AppleMobileDevice.kext
kext-dev-mode allowing invalid signature -67054 0xFFFFFFFFFFFEFA12 for kext AppleHDA.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext ACPIBatteryManager.kext
KernelCache ID: 220D85BA468560ABD999E74B24942C54
symlink("/System/Library/PrelinkedKernels/prelinkedkernel", "/System/Library/Caches/com.apple.kext.caches/Startup/kernelcache") failed 17 (File exists) <createPrelinkedKernel 2795>

Thanks again for your help :)
 

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alonstarikov4 said:
Sorry for the very late response, hadn't had the time to mess around with it in the last couple of weeks.
Iv'e tried a patched AppleHDA from Mirone's AppleHDA Patcher, and the same thing happened again: the sound was working until I restarted my laptop.
Attached Problem Reporting files and terminal output is here:
Code: 
Alons-MacBook-Pro:RehabMan alonstarikov4$ kextstat|grep -y acpiplat
   13    2 0xffffff7f82d79000 0x66000    0x66000    com.apple.driver.AppleACPIPlatform (5.0) 867C81BE-EA01-3A65-89F4-06D78E6514CA <12 11 7 6 5 4 3 1>

Alons-MacBook-Pro:RehabMan alonstarikov4$ kextstat|grep -y appleintelcpu

Alons-MacBook-Pro:RehabMan alonstarikov4$ kextstat|grep -y applelpc
   78    0 0xffffff7f825d5000 0x3000     0x3000     com.apple.driver.AppleLPC (3.1) F51595F0-F9B1-3B85-A1C3-F984DAD4107E <77 12 5 4 3>

Alons-MacBook-Pro:RehabMan alonstarikov4$ kextstat|grep -y applehda
   82    1 0xffffff7f82a5b000 0x1d000    0x1d000    com.apple.driver.AppleHDAController (278.56) CFB0D0AE-F09A-3660-8F95-7A02FD5FBF07 <81 80 72 12 7 6 5 4 3 1>
  115    0 0xffffff7f82bdd000 0xb4000    0xb4000    com.apple.driver.AppleHDA (278.56) A4EB06C9-A40A-39EF-9C4A-D7F23DB9A2F9 <114 98 82 81 80 72 6 5 4 3 1>
  116    0 0xffffff7f82a57000 0x2000     0x2000     com.apple.driver.AppleHDAHardwareConfigDriver (278.56) 06C594F4-3E5D-3BF4-A783-90C741DAA3F0 <4 3>

Code: 
Alons-MacBook-Pro:~ alonstarikov4$ sudo touch /System/Library/Extensions && sudo kextcache -u /
Password:
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooPS2Trackpad.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooPS2Mouse.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooPS2Keyboard.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooPS2Controller.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext VoodooI2C.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext SATA-100-series-unsupported.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext RealtekRTL8111.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext IntelBacklight.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext FakeSMC.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext CodecCommander.kext
kext-dev-mode allowing invalid signature -67013 0xFFFFFFFFFFFEFA3B for kext AppleMobileDevice.kext
kext-dev-mode allowing invalid signature -67054 0xFFFFFFFFFFFEFA12 for kext AppleHDA.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext ACPIBatteryManager.kext
KernelCache ID: 220D85BA468560ABD999E74B24942C54
symlink("/System/Library/PrelinkedKernels/prelinkedkernel", "/System/Library/Caches/com.apple.kext.caches/Startup/kernelcache") failed 17 (File exists) <createPrelinkedKernel 2795>

Thanks again for your help :)
Click to expand...

Try to determine the conditions under which audio working/not working.
Cold boot?
Restart from Windows?
After EC reset?
 
RehabMan said:
Try to determine the conditions under which audio working/not working.
Cold boot?
Restart from Windows?
After EC reset?
Click to expand...
Doesn't work after both boot from Windows and cold boot.
I can't do an EC reset because I cant disconnect the battery from my laptop
 
alonstarikov4 said:
Doesn't work after both boot from Windows and cold boot.
I can't do an EC reset because I cant disconnect the battery from my laptop
Click to expand...

You did not provide any information on the conditions under which it does work...
All laptops have batteries that can be disconnected. Refer to your service guide... (usually just a simple plug needs to be unplugged after exposing the connection to the motherboard).
 
RehabMan said:
You did not provide any information on the conditions under which it does work...
All laptops have batteries that can be disconnected. Refer to your service guide... (usually just a simple plug needs to be unplugged after exposing the connection to the motherboard).
Click to expand...
Works when I rebuild cache from safe mode but stops after one restart.
I'll try to unplug my battery tomorrow
 
alonstarikov4 said:
Works when I rebuild cache from safe mode but stops after one restart.
Click to expand...

Make sure you rebuild cache correctly. Safe mode is not involved...
See FAQ for details.
You must:
- boot without caches
- rebuild cache with Terminal
- reboot
 
RehabMan said:
Make sure you rebuild cache correctly. Safe mode is not involved...
See FAQ for details.
You must:
- boot without caches
- rebuild cache with Terminal
- reboot
Click to expand...
I just did an EC reset and there's no sound after that either.
Rebuilding cache after booting without caches fixes the problem too but only for one boot.
 
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