Fresh install of Ubuntu 19.10, I didn't manually install any drivers, Wifi and Bluetooth both worked out of the box (Asrock Deskmini A300 with 3168 dual band M.2 wifi/bluetooth card).
The OS crashed today and then bluetooth hasn't worked since. Wifi still works fine. Bluetooth has seemingly crashed in the past, but a reboot or restarting it via the settings panel worked.
Now the bluetooth settings panel rotates between saying "No bluetooth found" to "bluetooth turned off" every few seconds. Trying to enable it does nothing.
The additional drivers panel in Software & Updates shows the "device is not working", however, it has always said this. This has not changed. Though I am unable to make any selection here as the buttons are greyed out.
Here's some of the syslog that shows when I try to enable bluetooth from the settings panel:
Oct 22 14:05:57 deskmini systemd: Reached target Bluetooth. Oct 22 14:05:59 deskmini kernel: [ 521.124745] usb 1-3.1: USB disconnect, device number 52 Oct 22 14:05:59 deskmini kernel: [ 521.146649] Bluetooth: hci0: command 0x0c03 tx timeout Oct 22 14:06:07 deskmini kernel: [ 529.174629] Bluetooth: hci0: sending initial HCI reset command failed (-110) Oct 22 14:06:07 deskmini systemd: Stopped target Bluetooth
The Firmware files are present in /lib/firmware, I didn't manually install these: iwlwifi-3168-21.ucode, iwlwifi-3168-22.ucode, iwlwifi-3168-27.ucode, iwlwifi-3168-29.ucode
Any ideas how I can further debug this?