I am also affected for device 413c:8156 (Dell Wireless 370 Bluetooth Mini card) on Latitude E6400
For those looking for a quick fix: identify your bluetooth device ID with "lsusb |grep luetooth" (e.g. 413c:8156 and 0a5c:4500 for me) and then disable all matching entries in a line within this new file /etc/udev/rules.d/81-bluetooth-hci.rules: SUBSYSTEM=="usb", ATTRS{idVendor}=="413c", ATTRS{idProduct}=="8156", ATTR{authorized}="0" SUBSYSTEM=="usb", ATTRS{idVendor}=="0a5c", ATTRS{idProduct}=="4500", ATTR{authorized}="0" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767968 Title: systemd-udev cause high cpu load after upgrade to bionic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/udev/+bug/1767968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs