It appears the fix is in libinput version 1.10.5, but bionic is shipping version 1.10.4.
https://lists.freedesktop.org/archives/wayland-devel/2018-April/037934.html https://launchpad.net/ubuntu/+source/libinput As today is release day for bionic, we can talk about patching the fix in after release. So to answer your question; what needs to happen is: https://wiki.ubuntu.com/StableReleaseUpdates -- 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