解决Ubuntu连接华为freebuds3蓝牙耳机失败

前言

把Ubuntu18扬了后，重装Ubuntu20.04，莫名解决了在Ubuntu18上的一些问题，而耳机和brightness control的坑一直没碰，最近越发感到不能连接蓝牙耳机的不方面，终于解决，记录出来

正文

系统：Ubuntu20.04

在设置-蓝牙中始终连接不上蓝牙耳机

方案一

尝试安装blueman

1	sudo apt install blueman

再打开blueman进行连接

失败

方案二

控制台重启蓝牙服务

1	sudo service bluetooth restart

打开蓝牙控制检查工作情况

1 2	bluetoothctl show

将会显示类似内容：

Controller C8:B2:9B:F3:BB:27 (public)
	Name: ryao-Lenovo-Legion-Y7000P-2020H
	Alias: ryao-Lenovo-Legion-Y7000P-2020H
	Class: 0x001c010c
	Powered: yes
	Discoverable: yes
	DiscoverableTimeout: 0x00000000
	Pairable: yes
	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: Headset AG                (00001112-0000-1000-8000-00805f9b34fb)
	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: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
	UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
	UUID: Headset                   (00001108-0000-1000-8000-00805f9b34fb)
	UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)
	UUID: OBEX File Transfer        (00001106-0000-1000-8000-00805f9b34fb)
	Modalias: usb:v1D6Bp0246d0535
	Discovering: no
Advertising Features:
	ActiveInstances: 0x00
	SupportedInstances: 0x05
	SupportedIncludes: tx-power
	SupportedIncludes: appearance
	SupportedIncludes: local-name
	SupportedSecondaryChannels: 1M
	SupportedSecondaryChannels: 2M
	SupportedSecondaryChannels: Coded

如果没有显示，那么蓝牙设备可能有问题，以下操作将不会解决问题

正常显示，则执行以下命令

agent on
default-agent
power on
pairable on

将设备调至配对模式，扫描设备

scan on

显示设备

devices

出现类似内容：

Device 00:0E:0E:16:20:FF 00-0E-0E-16-20-FF
Device 00:0E:0B:16:11:9F ZK#001#104
Device 94:17:00:46:AC:8F Redmi K30 Ultra
Device 10:63:C8:E8:26:DC 10-63-C8-E8-26-DC
Device EC:7E:FC:28:DD:3F Mi Smart Band 4
Device 60:AB:67:79:3D:8D 1432412001的MI 9 SE
Device 00:0E:0B:16:20:FF 00-0E-0B-16-20-FF
Device 46:C9:D5:E7:84:A5 46-C9-D5-E7-84-A5
Device 00:0E:0B:14:F3:08 00-0E-0B-14-F3-08
Device 7C:2A:DB:54:4E:F6 7C-2A-DB-54-4E-F6
Device 9C:6B:72:B0:FB:36 realme X2
Device 00:00:12:44:48:34 ShanghaiTieTaWang
Device 6C:06:D6:2F:A5:C1 FreeBuds 3

安装pulseaudio-module-bluetooth（如果像我一样pair failed的话）

1
2
3

sudo apt install pulseaudio-module-bluetooth 
pulseaudio -k
pulseaudio --start

然后连接设备

1
2
3

trust [MAC_ADDRESS]
pair [MAC_ADDRESS]
connect [MAC_ADDRESS]

终于成功

退出

exit