ok. The issue is completely fixed running latest commits, Wayland or X. Tested only on my Dell 7510. I checked logs, only one error related to libinput FYI, see attachment.
** Attachment added: "Capture d’écran de 2018-03-07 10-14-56.png" https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1745816/+attachment/5071421/+files/Capture%20d%E2%80%99%C3%A9cran%20de%202018-03-07%2010-14-56.png -- 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/1745816 Title: [Bionic] 1.9.4-2ubuntu1 makes touchpad jumpy on Dell Precision 7510 and HP 450 G3 To manage notifications about this bug go to: https://bugs.launchpad.net/libinput/+bug/1745816/+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