2013款MBA发现在升级安装Maverick后，休眠->唤醒，系统会没有声音

@bindiry
我升级10.9.1后这两条命令就无法使用了
(kernel) Can't unload kext com.apple.driver.AppleHDA; classes have instances:
(kernel) Kext com.apple.driver.AppleHDA class AppleHDAWidgetCS4208 has 12 instances.
(kernel) Kext com.apple.driver.AppleHDA class AppleHDAEngine has 2 instances.
(kernel) Kext com.apple.driver.AppleHDA class AppleHDAEngineOutput has 1 instance.
(kernel) Kext com.apple.driver.AppleHDA class AppleHDAEngineInput has 1 instance.
(kernel) Kext com.apple.driver.AppleHDA class AppleHDAPath has 6 instances.
(kernel) Kext com.apple.driver.AppleHDA class AppleHDAWidget has 1 instance.
(kernel) Kext com.apple.driver.AppleHDA class AppleHDANode has 1 instance.
(kernel) Kext com.apple.driver.AppleHDA class AppleHDAPathSet has 5 instances.
(kernel) Kext com.apple.driver.AppleHDA class AppleHDAPathControl has 10 instances.
Failed to unload com.apple.driver.AppleHDA - (libkern/kext) kext is in use or retained (cannot unload).

此问题论坛原帖貌似有新解决方法？