Francois, As a simple workaround, I'm sure you know already, you can install the previous version:
https://launchpad.net/ubuntu/+source/libinput/1.9.4-2/+build/13868617/+files/libinput10_1.9.4-2_amd64.deb I think you can also configure your system to keep that older version installed, but I'm not familiar with pinning. The version "1.9.4-2ubuntu1" that's problematic for you is actually the first version that works properly for many other laptops. In my experience most of them were unusably laggy and unresponsive without that patch. And at last count 11% of all upstream bug reports to libinput were complaints from people about the laggy unresponsive behaviour. So I believe many more people will benefit from the new version than will experience regressions like you do. The way forward here is to wait for the libinput developers to request diagnostic information from you about your touchpad hardware, so they can build in a permanent solution for you. As an alternative to all the libinput issues, you can simply: 1. Install package: xserver-xorg-input-synaptics 2. Only log in to "Ubuntu on Xorg" so that driver is used (libinput won't be used). 3. Tweak your preferences with the command 'synclient' 4. Start app "Startup Applications" and insert the synclient command with your preferences there. ** Summary changed: - [Bionic] 1.9.4-2ubuntu1 makes touchpad jumpy + [Bionic] 1.9.4-2ubuntu1 makes touchpad jumpy on Dell Precision 7510 -- 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 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
