My sound device is cx20588, which by default USES the laptop's built-in sound. The first case: when the headset is connected, the system automatically switches the state, but the headset has no sound; Another case: plug in the earphone first, and the earphone is normal after entering the system...
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/
https://www.tonymacx86.com/threads/guide-native-power-management-for-laptops.175801/
https://www.tonymacx86.com/threads/guide-patching-laptop-dsdt-ssdts.152573/
Check out these posts and fix both...
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