And here is a kernel snap for testing: http://people.canonical.com/~ppisati/lp1810797/dragonboard- kernel_4.15.0-43.46~lp1810797_arm64.snap
hcitool has a problem accessing hci0 on Ubuntu core (at least, in my tests), use bluetoothctl instead: p-pisati@localhost:~$ sudo bluetoothctl [NEW] Controller 00:00:00:00:5A:AD localhost.localdomain [default] Agent registered [bluetooth]# default-agent Default agent request successful [bluetooth]# power on [CHG] Controller 00:00:00:00:5A:AD Class: 0x00100000 Changing power on succeeded [CHG] Controller 00:00:00:00:5A:AD Powered: yes [bluetooth]# scan on Discovery started [CHG] Controller 00:00:00:00:5A:AD Discovering: yes ... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1810797 Title: bluetooth controller not detected with 4.15 kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1810797/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs