先确保添加了non-free软件源，然后终端输入aptinstallfirmware-realtek重启。该包支持 *RealtekRTL8192Ebootcode(RTL8192E/boot.img) *RealtekRTL8192Einitdata(RTL8192E/data.img) *RealtekRTL8192Emaincode(RTL8192E/main.img) *RealtekRTL8192EEBluetoothfirmware(rtl_bt/rtl8192ee_fw.bin) *RealtekRTL8812AEBlu