我有一个蓝牙耳机 (Sony WH-1000XM3)，只要我只将它用作输出设备，它就可以与 PulseAudio 完美配合。在 pavucontrol 中更改蓝牙配置文件适用于除 HSP/HFP 之外的所有内容（SBC、LDAC、aptX HD、aptX 和 AAC）。发生这种情况时，PulseAudio 会输出以下错误：
I: [pulseaudio] protocol-native.c: Application "PulseAudio-Lautstärkeregler" requests card profile change. card = bluez_card.38_18_4C_6D_C9_22, profile = headset_head_unit
I: [pulseaudio] core.c: default_sink: bluez_sink.38_18_4C_6D_C9_22.a2dp_sink -> alsa_output.usb-BEHRINGER_UMC204HD_192k-00.analog-surround-40
I: [pulseaudio] source-output.c: Freeing output 3 "Ausschlagsserkennung"
I: [bluetooth] bluez5-util.c: Transport /org/bluez/hci0/dev_38_18_4C_6D_C9_22/sep5/fd13 released
I: [pulseaudio] sink.c: Freeing sink 1 "bluez_sink.38_18_4C_6D_C9_22.a2dp_sink"
I: [pulseaudio] source.c: Freeing source 3 "bluez_sink.38_18_4C_6D_C9_22.a2dp_sink.monitor"
I: [pulseaudio] backend-native.c: doing connect
E: [pulseaudio] backend-native.c: connect(): Function not implemented
开始时也
E: [pulseaudio] backend-ofono.c: Failed to …