That would have been between 2012 and 2014, during which time Ubuntu did not use libinput at all. We only started using libinput in Ubuntu in 2017.
You can go back to the old touchpad driver (it was sold with) if you're willing to use Xorg sessions only. Just install: sudo apt install xserver-xorg-input-synaptics -- 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/1746740 Title: XPS13 L322X Bionic (daily dev) touchpad laggy To manage notifications about this bug go to: https://bugs.launchpad.net/libinput/+bug/1746740/+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