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蓝牙未找到/正在工作 Ubuntu 20.04 Qualcomm Atheros QCA6174

tag-icon • tag-icon kernel bluetooth 20.04
蓝牙未找到/正在工作 Ubuntu 20.04 Qualcomm Atheros QCA6174

我遇到的问题是，WiFi 工作正常，但蓝牙无法工作或无法识别。我四处搜索，尝试在 bios (MOBO strix z370) 中禁用某些功能，但没有成功。WIFI 工作正常。我有点不确定如何继续调试，因为我不太熟悉调试这类东西。它在 18.04 和 Windows 上运行良好，但自从我安装了全新的 20.04 后，它就停止工作了。

如果我尝试通过 GUI 访问，我会得到著名的no bluetooth found。

无法通过 GUI 找到它

如果我尝试通过 bluetoothctl 访问

➜  ~ bluetoothctl            
Agent registered
[bluetooth]# devices
No default controller available
[bluetooth]# 


➜  ~  uname -a 
Linux borko-ubuntu 5.4.0-31-generic #35-Ubuntu SMP Thu May 7 20:20:34 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

rfkill 列表没有注册该设备，我认为这意味着内核没有注册该设备？

➜  ~ rfkill list           
0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

➜  ~ service bluetooth status
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: inactive (dead)
       Docs: man:bluetoothd(8)

мај 20 15:10:57 borko-ubuntu systemd[1]: Condition check resulted in Bluetooth service being skipped.
мај 20 15:11:23 borko-ubuntu systemd[1]: Condition check resulted in Bluetooth service being skipped.
мај 20 15:12:15 borko-ubuntu systemd[1]: Condition check resulted in Bluetooth service being skipped.

运行此命令后，我至少可以启动该服务

➜  ~ sudo systemctl enable bluetooth
Synchronizing state of bluetooth.service with SysV service script with /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable bluetooth

➜  ~ sudo modprobe btusb           
➜  ~ sudo systemctl restart bluetooth
➜  ~ service bluetooth status        
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2020-05-20 15:15:57 CEST; 1s ago
       Docs: man:bluetoothd(8)
   Main PID: 7578 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 38393)
     Memory: 2.1M
     CGroup: /system.slice/bluetooth.service
             └─7578 /usr/lib/bluetooth/bluetoothd

мај 20 15:15:57 borko-ubuntu systemd[1]: Starting Bluetooth service...
мај 20 15:15:57 borko-ubuntu bluetoothd[7578]: Bluetooth daemon 5.53
мај 20 15:15:57 borko-ubuntu systemd[1]: Started Bluetooth service.
мај 20 15:15:57 borko-ubuntu bluetoothd[7578]: Starting SDP server
мај 20 15:15:57 borko-ubuntu bluetoothd[7578]: Bluetooth management interface 1.14 initialized

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