我的 Ubuntu 机器上的蓝牙设置面板：
我尝试打开它，但它没有显示
vanshaj@rockstar:~$ sudo /etc/init.d/bluetooth status
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2020-09-21 23:10:48 IST; 18min ago
Docs: man:bluetoothd(8)
Main PID: 649 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 4915)
CGroup: /system.slice/bluetooth.service
└─649 /usr/lib/bluetooth/bluetoothd
Sep 21 23:13:39 rockstar bluetoothd[649]: Endpoint unregistered: sender=:1.1…rce
Sep 21 23:13:39 rockstar bluetoothd[649]: Endpoint unregistered: sender=:1.1…ink
Sep 21 23:20:33 rockstar bluetoothd[649]: Failed to set mode: Blocked throug…12)
Sep 21 23:20:37 rockstar bluetoothd[649]: Failed to set mode: Blocked throug…12)
Sep 21 23:21:00 rockstar bluetoothd[649]: Failed to set mode: Blocked throug…12)
Sep 21 23:21:40 rockstar bluetoothd[649]: Failed to set mode: Blocked throug…12)
Sep 21 23:22:26 rockstar bluetoothd[649]: Failed to set mode: Blocked throug…12)
Sep 21 23:24:26 rockstar bluetoothd[649]: Failed to set mode: Blocked throug…12)
Sep 21 23:24:30 rockstar bluetoothd[649]: Failed to set mode: Blocked throug…12)
Sep 21 23:26:02 rockstar bluetoothd[649]: Failed to set mode: Blocked throug…12)
Hint: Some lines were ellipsized, use -l to show in full.
我尝试了一些方法，包括阻止和解除阻止、重新启动蓝牙和重新启动。
重启后就可以正常工作了，但问题又出现了。现在列表上的图标也消失了。