我已按照在线说明安装了 Bluez，以便与 Cambridge Silicon Radio, Ltd 蓝牙适配器（HCI 模式）配合使用。我知道适配器可以正常工作，因为它非常适合我的 Windows 设备。
当我跑步时，lsusb我可以看到我的蓝牙适配器。
Bus 001 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
当我跑步时systemctl start bluetooth
Failed to start bluetooth.service: Unit bluetooth.service failed to load properly, please adjust/correct and reload service manager: File exists
See system logs and 'systemctl status bluetooth.service' for details.
当我跑步时systemctl status bluetooth.service
○ bluetooth.service - Bluetooth service
Loaded: error (Reason: Unit bluetooth.service failed to load properly, please adjust/correct and reload service manager: File exists)
Active: inactive (dead)
Docs: man:bluetoothd(8)
bluetooth.service: Two services allocated for the same bus name org.bluez, refusing operation.
我尝试使用以下方法删除 BlueZ，但没有成功sudo apt remove bluez pulseaudio-module-bluetooth blueman
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package 'blueman' is not installed, so not removed
Package 'pulseaudio-module-bluetooth' is not installed, so not removed
The following packages will be REMOVED:
bluez
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 3,759 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 1257563 files and directories currently installed.)
Removing bluez (5.64-0ubuntu1) ...
Failed to stop bluetooth.service: Unit bluetooth.service not loaded.
invoke-rc.d: initscript bluetooth, action "stop" failed.
dpkg: error processing package bluez (--remove):
installed bluez package pre-removal script subprocess returned error exit status 1
dpkg: too many errors, stopping
Failed to start bluetooth.service: Unit bluetooth.service failed to load properly, please adjust/correct and reload service manager: File exists
See system logs and 'systemctl status bluetooth.service' for details.
invoke-rc.d: initscript bluetooth, action "start" failed.
○ bluetooth.service - Bluetooth service
Loaded: error (Reason: Unit bluetooth.service failed to load properly, please adjust/correct and reload service manager: File exists)
Active: inactive (dead)
Docs: man:bluetoothd(8)
bluetooth.service: Two services allocated for the same bus name org.bluez, refusing operation.
与sudo dpkg -r --force-all bluez
(Reading database ... 1257563 files and directories currently installed.)
Removing bluez (5.64-0ubuntu1) ...
Failed to stop bluetooth.service: Unit bluetooth.service not loaded.
invoke-rc.d: initscript bluetooth, action "stop" failed.
dpkg: error processing package bluez (--remove):
installed bluez package pre-removal script subprocess returned error exit status 1
Failed to start bluetooth.service: Unit bluetooth.service failed to load properly, please adjust/correct and reload service manager: File exists
See system logs and 'systemctl status bluetooth.service' for details.
invoke-rc.d: initscript bluetooth, action "start" failed.
○ bluetooth.service - Bluetooth service
Loaded: error (Reason: Unit bluetooth.service failed to load properly, please adjust/correct and reload service manager: File exists)
Active: inactive (dead)
Docs: man:bluetoothd(8)
bluetooth.service: Two services allocated for the same bus name org.bluez, refusing operation.
dpkg: error while cleaning up:
installed bluez package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
bluez
最后systemctl restart bluetooth.service也没起作用
Failed to restart bluetooth.service: Unit bluetooth.service failed to load properly, please adjust/correct and reload service manager: File exists
See system logs and 'systemctl status bluetooth.service' for details.
我总体来说非常困惑。
答案1
- 重启蓝牙服务：
sudo systemctl restart bluetooth
- 安装蓝牙管理器（可选）：
sudo apt-get install blueman
- 更新您的系统：
sudo apt-get update
sudo apt-get upgrade
- 检查蓝牙状态：
rfkill list
- 重置蓝牙设置：
sudo rm -r /var/lib/bluetooth/
sudo systemctl restart bluetooth
- 验证蓝牙模块：
lsmod | grep bluetooth
- 检查日志中的错误：
journalctl | grep -i bluetooth
笔记：如果这些步骤都不能解决问题，则可能存在硬件兼容性问题，或者您的系统可能存在更具体的问题。
答案2
snapbluez使用相同的 DBus 名称。如果与 Debian 软件包同时安装，bluez则会引起此类冲突。
检查 snap 是否已经安装：
snap list bluez
如果是，则删除它：
sudo snap remove bluez
然后启动失败的蓝牙服务：
sudo systemctl restart bluetooth