I've just installed ubuntu 18.04.2 to a new partition, and then installed the following packages:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13.3/linux-headers-4.13.3-041303-generic_4.13.3-041303.201709200606_amd64.deb https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13.3/linux- image-4.13.3-041303-generic_4.13.3-041303.201709200606_amd64.deb sas@bionic:~$ uname -a Linux bionic 4.13.3-041303-generic #201709200606 SMP Wed Sep 20 10:12:46 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux I can confirm that the bug IS NOT PRESENT using this kernel, with kernel version 4.13.3 the touchpad works ok. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libinput in Ubuntu. https://bugs.launchpad.net/bugs/1816947 Title: [Dell XPS L321X] Touchpad not working after last apt-get upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1816947/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp