Hello, can you attach the output of the following command: udevadm info -e
also, can you tell us which kernel version works with this, and which one breaks it? You can do this by switching kernels in the grub menu [1] [1] https://askubuntu.com/questions/16042/how-to-get-to-the-grub-menu- at-boot-time ** Changed in: linux-signed-hwe (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1833516 Title: Touchpad not working anymore after update in 'Acer TravelMate P238-M-511P' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1833516/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs