https://bugzilla.kernel.org/show_bug.cgi?id=199035 --- Comment #15 from gustavo.willer@xxxxxxxxxxx --- I fix the problem with this approach: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1759836/comments/70 from "Florian Dittmer (fd81)" " Following the instructions mentioned by one user in the comments helped me to solve the cpu load issue with udev-239 and kernel 4.18.17, while Bluetooth still works. Run the following command: /lib/systemd/systemd-udevd -D This should print garbage in endless loop containing ".../97-hid2hci.rules:" If so, edit /lib/udev/rules.d/97-hid2hci.rules and add ACTION=="add", in front of line mentioned by above command. In my case, I had to change the following lines in 97-hid2hci.rules from: ATTR{bInterfaceClass}=="03", ATTR{bInterfaceSubClass}=="01", ATTR{bInterfaceProtocol}=="02", \ ATTRS{bDeviceClass}=="00", ATTRS{idVendor}=="413c", ATTRS{bmAttributes}=="e0", \ RUN+="hid2hci --method=dell --devpath=%p", ENV{HID2HCI_SWITCH}="1" to: ACTION=="add", ATTR{bInterfaceClass}=="03", ATTR{bInterfaceSubClass}=="01", ATTR{bInterfaceProtocol}=="02", \ ATTRS{bDeviceClass}=="00", ATTRS{idVendor}=="413c", ATTRS{bmAttributes}=="e0", \ RUN+="hid2hci --method=dell --devpath=%p", ENV{HID2HCI_SWITCH}="1" And this fixed the issue (after reboot). " from -- You are receiving this mail because: You are the assignee for the bug.
