I too am having this problem after a suspend/resume [deep].
Kubuntu 18.04 (nearly up to date patches (20200424)
dmesg:
[285163.220315] Bluetooth: hci0: command 0xfc05 tx timeout [285163.220316] Bluetooth: hci0: Reading Intel version information failed (-110)
To restart the BT adapter a simple:-
rmmod btusb rmmod btintel modprobe btinel modprobe btusb
is sufficient for me.
I hope this helps.
I too am having this problem after a suspend/resume [deep].
Kubuntu 18.04 (nearly up to date patches (20200424)
dmesg:
[285163.220315] Bluetooth: hci0: command 0xfc05 tx timeout
[285163.220316] Bluetooth: hci0: Reading Intel version information failed (-110)
To restart the BT adapter a simple:-
rmmod btusb
rmmod btintel
modprobe btinel
modprobe btusb
is sufficient for me.
I hope this helps.