Seeing very similar symptoms on Ubuntu 17.10 running 4.13.0-19-generic or 4.14.0-041400-generic. Sometimes, but not every time, BT is not available after resuming from suspend.
>From other data sources, the root cause is a lack of .reset_resume handler in the BT driver. A possible interim fix (worked for me) is sudo modprobe -r btusb sudo modprobe btusb This at least gets BT up again. A possible (but not confirmed) temporary reboot-persistent fix is sudo vi /etc/modprobe.d/btusb.conf and add line with: "options btusb reset=1" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1561474 Title: Bluetooth will be disable after resume from suspend on Xenial To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1561474/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs