已连接的蓝牙音频设备无法选为输出设备的问题咨询

大家好，我最近碰到了一个蓝牙耳机的棘手问题，想请教下社区的各位：

在GNOME的蓝牙设置里，我能顺利连接我的JBL LIVE PRO 2 TWS耳机，GUI里显示设备处于已连接状态，用bluetoothctl info命令查看也显示设备是配对（paired）且已连接的状态，但就是没法在声音设置里把它选为输出设备。

之前我偶然用终端操作找到了临时解决办法：先执行bluetoothctl scan on找到设备地址，再用bluetoothctl connect <address>重新连接，之后设备就能在GNOME声音设置里显示并选为输出设备了。但这个办法现在又不管用了，而且显然普通用户不该需要靠终端命令来解决这种基础问题。

我想问问大家：

• 这种情况是预期行为吗？还是个bug？
• 如果是bug的话，应该提交给哪个项目？是bluez、pipewire、GNOME还是内核？

相关信息 #

1. bluetoothctl info输出：

Device 28:6F:40:AB:1B:5C (public)
Name: JBL LIVE PRO 2 TWS-LE
Alias: JBL LIVE PRO 2 TWS-LE
Class: 0x00240404
Icon: audio-headset
Paired: yes
Bonded: yes
Trusted: no
Blocked: no
Connected: yes
LegacyPairing: no
UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
UUID: Amazon.com Services, Inc. (0000fe03-0000-1000-8000-00805f9b34fb)
UUID: Google                    (0000fe2c-0000-1000-8000-00805f9b34fb)
UUID: Vendor specific           (11111111-1111-1111-1111-111111111111)
UUID: Vendor specific           (65786365-6c70-6f69-6e74-2e636f6d0000)
UUID: Vendor specific           (66666666-6666-6666-6666-666666666666)
ServiceData Key: 0000fe2c-0000-1000-8000-00805f9b34fb
ServiceData Value:
00 40 80 d0 28 10 34 7f 64 28                    .@..(.4.d(
RSSI: -54
TxPower: -15

2. 临时解决办法的终端命令：

bluetoothctl scan on
# 找到设备地址后执行
bluetoothctl connect <address>
# 之后设备就能作为输出端点显示了

3. 蓝牙控制器信息：

Controller A8:BB:CF:20:9F:AF (public)
Name: guest
Alias: guest
Class: 0x007c010c
Powered: yes
Discoverable: no
DiscoverableTimeout: 0x000000b4
Pairable: no
UUID: Message Notification Se.. (00001133-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
UUID: OBEX Object Push          (00001105-0000-1000-8000-00805f9b34fb)
UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)
UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
UUID: IrMC Sync                 (00001104-0000-1000-8000-00805f9b34fb)
UUID: Vendor specific           (00005005-0000-1000-8000-0002ee000001)
UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
UUID: Phonebook Access Server   (0000112f-0000-1000-8000-00805f9b34fb)
UUID: Device Information        (0000180a-0000-1000-8000-00805f9b34fb)
UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
UUID: Handsfree Audio Gateway   (0000111f-0000-1000-8000-00805f9b34fb)
UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)
UUID: OBEX File Transfer        (00001106-0000-1000-8000-00805f9b34fb)
UUID: Handsfree                 (0000111e-0000-1000-8000-00805f9b34fb)
Modalias: usb:v1D6Bp0246d0542
Discovering: no
Roles: central
Roles: peripheral
Advertising Features:
ActiveInstances: 0x00 (0)
SupportedInstances: 0x05 (5)
SupportedIncludes: tx-power
SupportedIncludes: appearance
SupportedIncludes: local-name

系统信息：

• Ubuntu版本：Lunar Lobster
• Bluez版本：5.66-0ubuntu1
• Pipewire版本：0.3.65-3
• 内核版本：6.2.0-26-generic
• 蓝牙设备：JBL LIVE PRO 2 TWS

备注：内容来源于stack exchange，提问作者Brett Holman