今天新版 Ubuntu 22.10 发布，高高兴兴升级完成后，发现：1.Flameshot 异常；2.没法连接 AirPods Pro2 耳机了；3.定制 ibus 的 gnome 插件不兼容(预料之中)。
蓝牙耳机连不上的的时候，症状为 Failed to connect: org.bluez.Error.Failed br-connection-profile-unavailable：
1 [bluetooth]# connect C0:95:6D:C0:A3:92
2 Attempting to connect to C0:95:6D:C0:A3:92
3 Failed to connect: org.bluez.Error.Failed br-connection-profile-unavailable
bluetooth 服务提示： src/service.c:btd_service_connect() a2dp-sink profile connect failed for C0:95:6D:C0:A3:92: Protocol not available
1 ➜ systemctl status bluetooth.service
2 ● bluetooth.service - Bluetooth service
3 Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; preset: enabled)
4 Active: active (running) since Fri 2022-10-21 14:21:09 CST; 4min 56s ago
5 Docs: man:bluetoothd(8)
6 Main PID: 2973 (bluetoothd)
7 Status: "Running"
8 Tasks: 1 (limit: 18897)
9 Memory: 1.6M
10 CPU: 451ms
11 CGroup: /system.slice/bluetooth.service
12 └─2973 /usr/lib/bluetooth/bluetoothd
13
14 Oct 21 14:21:09 workpc systemd[1]: Started Bluetooth service.
15 Oct 21 14:21:09 workpc bluetoothd[2973]: Bluetooth management interface 1.22 initialized
16 Oct 21 14:22:13 workpc bluetoothd[2973]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for C0:95:6D:C0:A3:92: Protocol not available
17 Oct 21 14:22:14 workpc bluetoothd[2973]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for C0:95:6D:C0:A3:92: Protocol not available
18 Oct 21 14:23:24 workpc bluetoothd[2973]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for C0:95:6D:C0:A3:92: Protocol not available
19 Oct 21 14:23:26 workpc bluetoothd[2973]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for C0:95:6D:C0:A3:92: Protocol not available
20 Oct 21 14:23:39 workpc bluetoothd[2973]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for C0:95:6D:C0:A3:92: Protocol not available
21 Oct 21 14:24:23 workpc bluetoothd[2973]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for C0:95:6D:C0:A3:92: Protocol not available
22 Oct 21 14:24:34 workpc bluetoothd[2973]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for C0:95:6D:C0:A3:92: Protocol not available
23 Oct 21 14:24:36 workpc bluetoothd[2973]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for C0:95:6D:C0:A3:92: Protocol not available
这就是 linux 用户的日常，搜索后确定大致原因为，Ubuntu 22.10 桌面版本音频服务从 PulseAudio 切换到 PipeWire, 导致的服务异常。
1 sudo apt install wireplumber libspa-0.2-bluetooth wireplumber-doc
依赖包解释说明
WirePlumberis a modular session / policy manager for PipeWire
libspa-0.2-bluetoothlibraries for the PipeWire multimedia server bluetooth plugins
1systemctl --user restart wireplumber
1➜ bluetoothctl
2Agent registered
3[bluetooth]# connect C0:95:6D:C0:A3:92
4Attempting to connect to C0:95:6D:C0:A3:92
5[CHG] Device C0:95:6D:C0:A3:92 Connected: yes
6[NEW] Endpoint /org/bluez/hci0/dev_C0_95_6D_C0_A3_92/sep1
7[NEW] Endpoint /org/bluez/hci0/dev_C0_95_6D_C0_A3_92/sep2
8[NEW] Endpoint /org/bluez/hci0/dev_C0_95_6D_C0_A3_92/sep3
9[NEW] Transport /org/bluez/hci0/dev_C0_95_6D_C0_A3_92/sep1/fd0
10[CHG] Transport /org/bluez/hci0/dev_C0_95_6D_C0_A3_92/sep1/fd0 Delay: 0x05dc (1500)
11Connection successful
如果你还有其它疑问，比如不知道获取你的设备 mac 地址，可以以查看我以前写了另外一个文章
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