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蓝牙在 Ubuntu 20.04 上不起作用

tag-icon • tag-icon drivers 20.04 bluetooth laptop
蓝牙在 Ubuntu 20.04 上不起作用

请帮我解决我的问题。通过软件更新程序进行一些更新后，我的 msi ps42 modern 8mo (ps428mo-454xua) 上的蓝牙突然停止工作，尝试了这里的一些解决方法Ubuntu 20.04 蓝牙无法正常工作 仍然有问题。我该怎么做才能解决这个问题？

这里有一些输出：

systemctl | grep -i 蓝色：

  run-snapd-ns-bluez.mnt.mount    loaded active     mounted   /run/snapd/ns/bluez.mnt                                                                               
  snap-bluez-229.mount    active     mounted   Mount unit for bluez, revision 229                                                                    
  snap-bluez-266.mount    active     mounted   Mount unit for bluez, revision 266                                                                    
  bluetooth.service       active     running   Bluetooth service                                                                                     
● snap.bluez.bluez.service  failed     failed    Service for snap application bluez.bluez                                                              
● snap.bluez.obex.service   failed     failed    Service for snap application bluez.obex

dmesg | grep -i 蓝色：

没有输出

lspci：

00:00.0 Host bridge: Intel Corporation Coffee Lake HOST and DRAM Controller (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (Whiskey Lake) (rev 02)
00:12.0 Signal processing controller: Intel Corporation Cannon Point-LP Thermal Controller (rev 30)
00:14.0 USB controller: Intel Corporation Cannon Point-LP USB 3.1 xHCI Controller (rev 30)
00:14.2 RAM memory: Intel Corporation Cannon Point-LP Shared SRAM (rev 30)
00:14.3 Network controller: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] (rev 30)
00:16.0 Communication controller: Intel Corporation Cannon Point-LP MEI Controller #1 (rev 30)
00:1d.0 PCI bridge: Intel Corporation Cannon Point-LP PCI Express Root Port #9 (rev f0)
00:1d.4 PCI bridge: Intel Corporation Cannon Point-LP PCI Express Root Port #13 (rev f0)
00:1f.0 ISA bridge: Intel Corporation Cannon Point-LP LPC Controller (rev 30)
00:1f.3 Audio device: Intel Corporation Cannon Point-LP High Definition Audio Controller (rev 30)
00:1f.4 SMBus: Intel Corporation Cannon Point-LP SMBus Controller (rev 30)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Point-LP SPI Controller (rev 30)
02:00.0 Non-Volatile memory controller: Kingston Technology Company, Inc. Device 5008 (rev 01)

rfkill 列出全部：

0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

一些更新，冷启动后，蓝牙已打开，我可以通过顶部栏中的 blueman 图标看到它。当我尝试打开设置时，我看到一些设备，然后我看到消息：未找到蓝牙 蓝牙设置屏幕

我可以添加一些额外的信息，但不知道什么能有所帮助

更新型多巴胺 一些新信息：冷启动后蓝牙已启动。

蓝牙控制：

Agent registered
[CHG] Controller 08:71:90:94:E5:AC Pairable: yes

然后我尝试连接到设备：

 bluetooth]# connect 00:42:79:AF:89:97
    Attempting to connect to 00:42:79:AF:89:97
    [CHG] Controller 08:71:90:94:E5:AC Class: 0x00000000
    Failed to connect: org.bluez.Error.Failed
    [CHG] Controller 08:71:90:94:E5:AC Powered: no
    [CHG] Controller 08:71:90:94:E5:AC Discovering: no

并且蓝牙不再可用

[bluetooth]# devices 
No default controller available

答案1

我有一台 Dell XPS 15 7590，蓝牙启动失败，没有任何提示。我卸载了 bluez，然后重新安装，问题就解决了。我不知道为什么。

sudo apt remove--purge--自动删除 bluez

安装 bluez

如果能知道这一切发生的原因就好了。

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