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My sound card is realtek HD audio output, and the headphone jack in front of the host computer can't be used.
The front earphone and earphone interface of Realteck HD Audio sound card cannot be used.

This is due to the new features of the latest official Realteck sound card driver itself, not the system. If this happens, you can go to "Sound, Voice and Audio Devices" in the Control Panel and find "Realtek HD Audio Manager->; Audio I/O- > Connector Settings-> Select Disable Front Panel Jack Detection.