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#1 2022-09-25 14:00:01

liuf
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蓝牙耳机被识别成免手设备

这次安装系统后遇到这样的问题：GNOME桌面环境，蓝牙耳机（OPPO Enco X）第一次连接蓝牙时，声音输出列表里有耳机和免手设备，都是对应的耳机。如果选择输出到耳机那么正常，如果选择输出到免手设备，在使用上会存在一些问题（音量控制等）。但一但连接中断，重新连接，耳机那一项就消失了，只剩下免手设备一项了。经过测试，systemctl重启蓝牙服务会解决问题，请问有无办法可以一劳永逸？

这是第一次连接或者重启bluetooth服务后的正常情况：
y8sVp9eDHkR3CWo.png

这是耳机重新连接后的异常情况：
qBpAxnsDaoXEFGw.png

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#2 2022-09-25 14:03:12

依云
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Re: 蓝牙耳机被识别成免手设备

HSP 是那样的，音质差、不支持绝对音量，但是支持话筒。
我也不知道你的 A2DP 为什么会消失。建议看蓝牙服务的系统日志。

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#3 2022-09-25 19:37:19

SamLukeYes
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Re: 蓝牙耳机被识别成免手设备

我用 gnome + pipewire 也有类似的问题，每次连接蓝牙耳机都要手动连接才能用 LDAC，如果自动连上的话会和你一样只能识别为免手设备

最近编辑记录 SamLukeYes (2022-09-25 23:04:43)

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#4 2022-09-25 20:11:10

依云
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Re: 蓝牙耳机被识别成免手设备

难道是 GNOME 的问题？我用的不是 GNOME。

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#5 2022-09-25 22:38:44

KafCoppelia
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Re: 蓝牙耳机被识别成免手设备

我使用华为Freebuds Pro 2也没有A2DP或者LDAC，蓝牙用bluz系列，只有CVSD和mSBC。看了很多wiki，也没解决

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#6 2022-09-26 01:04:07

liuf
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Re: 蓝牙耳机被识别成免手设备

依云 说：

难道是 GNOME 的问题？我用的不是 GNOME。

这次用GNOME之前我在电脑上使用了一段时间Sway，使用blueman设置的这个蓝牙耳机。当时在用MPD播放音乐的时候，虽然无法从GUI上面看到使用的免手设备输出，但听声音和免手设备是一样的，有明显的像是打电话一样的回声，而且音量从0上升一档就变很大。因此我猜测是蓝牙连接的问题吧。

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#7 2022-09-27 09:10:58

luxni
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Re: 蓝牙耳机被识别成免手设备

貌似和wiki描述的有点像，可以参考看下：
A2DP sink profile is unavailable

虽然人菜菜的，但也想做个有趣的人。

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#8 2022-09-27 22:37:27

BRS5672023
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Re: 蓝牙耳机被识别成免手设备

KafCoppelia 说：

我使用华为Freebuds Pro 2也没有A2DP或者LDAC，蓝牙用bluz系列，只有CVSD和mSBC。看了很多wiki，也没解决

同款耳机，之前有 LDAC 的选项，但选完自动跳回 AAC，今天发现 LDAC 能正常使用了（pipewire+wireplumber）。。终端 pactl list sinks 输出如下

Sink #111
        State: RUNNING
        Name: bluez_output.D0_F3_F5_84_41_B6.a2dp-sink
        Description: HUAWEI FreeBuds Pro 2
        Driver: PipeWire
        Sample Specification: float32le 2ch 48000Hz
        Channel Map: front-left,front-right
        Owner Module: 4294967295
        Mute: no
        Volume: front-left: 20972 /  32% / -29.69 dB,   front-right: 20972 /  32% / -29.69 dB
                balance 0.00
        Base Volume: 65536 / 100% / 0.00 dB
        Monitor Source: bluez_output.D0_F3_F5_84_41_B6.a2dp-sink.monitor
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
        Properties:
                api.bluez5.address = "D0:F3:F5:84:41:B6"
                api.bluez5.codec = "ldac"
                api.bluez5.profile = "a2dp-sink"
                api.bluez5.transport = ""
                card.profile.device = "1"
                device.id = "48"
                device.routes = "1"
                factory.name = "api.bluez5.a2dp.sink"
                device.description = "HUAWEI FreeBuds Pro 2"
                node.name = "bluez_output.D0_F3_F5_84_41_B6.a2dp-sink"
                node.pause-on-idle = "false"
                priority.driver = "1010"
                priority.session = "1010"
                factory.id = "8"
                clock.quantum-limit = "8192"
                device.api = "bluez5"
                media.class = "Audio/Sink"
                node.driver = "true"
                factory.mode = "merge"
                audio.adapt.follower = ""
                library.name = "audioconvert/libspa-audioconvert"
                object.id = "65"
                object.serial = "111"
                client.id = "33"
                api.bluez5.class = "0x240418"
                api.bluez5.connection = "disconnected"
                api.bluez5.device = ""
                api.bluez5.icon = "audio-headphones"
                api.bluez5.path = "/org/bluez/hci0/dev_D0_F3_F5_84_41_B6"
                bluez5.auto-connect = "[ hfp_hf hsp_hs a2dp_sink ]"
                bluez5.profile = "off"
                device.alias = "HUAWEI FreeBuds Pro 2"
                device.bus = "bluetooth"
                device.form_factor = "headphone"
                device.icon_name = "audio-headphones-bluetooth"
                device.name = "bluez_card.D0_F3_F5_84_41_B6"
                device.product.id = "0x4108"
                device.string = "D0:F3:F5:84:41:B6"
                device.vendor.id = "bluetooth:027d"
        Ports:
                headphone-output: 头戴耳机 (type: Headphones, priority: 0, available)
        Active Port: headphone-output
        Formats:
                pcm

最近编辑记录 BRS5672023 (2022-10-03 13:17:30)

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#9 2023-02-03 16:13:39

edward-p
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Re: 蓝牙耳机被识别成免手设备

清除 bluetooth 缓存 ( 指删除 /var/lib/bluetooth/<蓝牙适配器mac地址>/cache/* ) 再重启 bluetooth.service 试试

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#10 2023-02-04 00:23:45

KafCoppelia
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Re: 蓝牙耳机被识别成免手设备

我的arch却识别成免手操作，采样率低，也不是a2dp

BRS5672023 说：
KafCoppelia 说：

我使用华为Freebuds Pro 2也没有A2DP或者LDAC，蓝牙用bluz系列，只有CVSD和mSBC。看了很多wiki，也没解决

同款耳机，之前有 LDAC 的选项，但选完自动跳回 AAC，今天发现 LDAC 能正常使用了（pipewire+wireplumber）。。终端 pactl list sinks 输出如下

Sink #111
        State: RUNNING
        Name: bluez_output.D0_F3_F5_84_41_B6.a2dp-sink
        Description: HUAWEI FreeBuds Pro 2
        Driver: PipeWire
        Sample Specification: float32le 2ch 48000Hz
        Channel Map: front-left,front-right
        Owner Module: 4294967295
        Mute: no
        Volume: front-left: 20972 /  32% / -29.69 dB,   front-right: 20972 /  32% / -29.69 dB
                balance 0.00
        Base Volume: 65536 / 100% / 0.00 dB
        Monitor Source: bluez_output.D0_F3_F5_84_41_B6.a2dp-sink.monitor
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
        Properties:
                api.bluez5.address = "D0:F3:F5:84:41:B6"
                api.bluez5.codec = "ldac"
                api.bluez5.profile = "a2dp-sink"
                api.bluez5.transport = ""
                card.profile.device = "1"
                device.id = "48"
                device.routes = "1"
                factory.name = "api.bluez5.a2dp.sink"
                device.description = "HUAWEI FreeBuds Pro 2"
                node.name = "bluez_output.D0_F3_F5_84_41_B6.a2dp-sink"
                node.pause-on-idle = "false"
                priority.driver = "1010"
                priority.session = "1010"
                factory.id = "8"
                clock.quantum-limit = "8192"
                device.api = "bluez5"
                media.class = "Audio/Sink"
                node.driver = "true"
                factory.mode = "merge"
                audio.adapt.follower = ""
                library.name = "audioconvert/libspa-audioconvert"
                object.id = "65"
                object.serial = "111"
                client.id = "33"
                api.bluez5.class = "0x240418"
                api.bluez5.connection = "disconnected"
                api.bluez5.device = ""
                api.bluez5.icon = "audio-headphones"
                api.bluez5.path = "/org/bluez/hci0/dev_D0_F3_F5_84_41_B6"
                bluez5.auto-connect = "[ hfp_hf hsp_hs a2dp_sink ]"
                bluez5.profile = "off"
                device.alias = "HUAWEI FreeBuds Pro 2"
                device.bus = "bluetooth"
                device.form_factor = "headphone"
                device.icon_name = "audio-headphones-bluetooth"
                device.name = "bluez_card.D0_F3_F5_84_41_B6"
                device.product.id = "0x4108"
                device.string = "D0:F3:F5:84:41:B6"
                device.vendor.id = "bluetooth:027d"
        Ports:
                headphone-output: 头戴耳机 (type: Headphones, priority: 0, available)
        Active Port: headphone-output
        Formats:
                pcm
$ pactl list sinks
Sink #25881
        State: SUSPENDED
        Name: bluez_output.94_08_C7_9D_5F_BB.1
        Description: HUAWEI FreeBuds Pro 2
        Driver: PipeWire
        Sample Specification: s16le 1ch 16000Hz
        Channel Map: mono
        Owner Module: 4294967295
        Mute: no
        Volume: mono: 4369 /   7% / -70.57 dB
                balance 0.00
        Base Volume: 65536 / 100% / 0.00 dB
        Monitor Source: bluez_output.94_08_C7_9D_5F_BB.1.monitor
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
        Properties:
                api.bluez5.address = "94:08:C7:9D:5F:BB"
                api.bluez5.codec = "msbc"
                api.bluez5.profile = "headset-head-unit"
                api.bluez5.transport = ""
                card.profile.device = "1"
                device.id = "56"
                device.intended_roles = "Communication"
                device.routes = "1"
                factory.name = "api.bluez5.sco.sink"
                device.description = "HUAWEI FreeBuds Pro 2"
                node.name = "bluez_output.94_08_C7_9D_5F_BB.1"
                node.pause-on-idle = "false"
                priority.driver = "1010"
                priority.session = "1010"
                factory.id = "8"
                clock.quantum-limit = "8192"
                device.api = "bluez5"
                media.class = "Audio/Sink"
                node.driver = "true"
                factory.mode = "merge"
                audio.adapt.follower = ""
                library.name = "audioconvert/libspa-audioconvert"
                object.id = "69"
                object.serial = "25881"
                client.id = "33"
                api.bluez5.class = "0x240418"
                api.bluez5.connection = "disconnected"
                api.bluez5.device = ""
                api.bluez5.icon = "audio-headphones"
                api.bluez5.path = "/org/bluez/hci0/dev_94_08_C7_9D_5F_BB"
                bluez5.auto-connect = "[ hfp_hf hsp_hs a2dp_sink ]"
                bluez5.profile = "off"
                device.alias = "HUAWEI FreeBuds Pro 2"
                device.bus = "bluetooth"
                device.form_factor = "headphone"
                device.icon_name = "audio-headphones-bluetooth"
                device.name = "bluez_card.94_08_C7_9D_5F_BB"
                device.product.id = "0x4108"
                device.string = "94:08:C7:9D:5F:BB"
                device.vendor.id = "bluetooth:027d"
        Ports:
                headphone-hf-output: 免手操作 (type: Headphones, priority: 0, available)
        Active Port: headphone-hf-output
        Formats:
                pcm

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