I run KDE Neon 5.13.2 and have problems with my bluetooth adapter.

The adapter is detected only sometimes. I cannot make out any pattern. It sometimes works after a cold boot, sometimes doesn't. It is unavailable most of the time after waking from suspend. 

`bluetoothctl list` shows nothing. If the adapter *is* detected, it shows obviously shows up. In the KDE bluetooth adapter settings window the message "no adapter has been found" is displayed.


```
rfkill list                            
0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
```

```
systemctl status bluetooth -l                           
● bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
   Active: active (running) since Fre 2018-06-29 08:48:37 CEST; 28min ago
     Docs: man:bluetoothd(8)
 Main PID: 16554 (bluetoothd)
   Status: "Running"
    Tasks: 1
   Memory: 704.0K
      CPU: 7ms
   CGroup: /system.slice/bluetooth.service
           └─16554 /usr/lib/bluetooth/bluetoothd

Jun 29 08:48:37 dell systemd[1]: Stopped Bluetooth service.
Jun 29 08:48:37 dell systemd[1]: Starting Bluetooth service...
Jun 29 08:48:37 dell bluetoothd[16554]: Bluetooth daemon 5.37
Jun 29 08:48:37 dell bluetoothd[16554]: Unknown key AutoEnable in main.conf
Jun 29 08:48:37 dell systemd[1]: Started Bluetooth service.
Jun 29 08:48:37 dell bluetoothd[16554]: Starting SDP server
Jun 29 08:48:37 dell bluetoothd[16554]: Bluetooth management interface 1.14 initialized
```


```
lsmod | grep bluetooth              
bluetooth             548864  16 btrtl,hci_uart,btintel,btqca,bnep,btbcm,rfcomm,btusb
ecdh_generic           24576  1 bluetooth
```