Public bug reported: I have had quite some issues with the touchpad on my 2013 DELL XPS 13 since installing 18.04. It worked fine on previous versions.
Typical observations: - lag - cursor movements being interrupted - more lag - single/double tap not being detected consistently - did I mention lag? Long story short: I understand 18.04 moves support for this touchpad from the synaptics driver to libinput. libinput10 1.10 apparently does not work well for this hardware, and adding the xserver-xorg-input- synaptics package did not bring back the good experience entirely. After looking into https://bugs.freedesktop.org/show_bug.cgi?id=104990 I decided to install the libinput .deb from Cosmic (current 1.11.1-1) which required libinput-bin as well. After installing both, the touchpad works as expected. Bionic is LTS, and these XPS machines have been a commercial reference for Ubuntu. I'd suggest to backport this solution to Bionic. I'm not sure HWE will bring it but even then impact for new installations could already be big. ** Affects: libinput (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libinput in Ubuntu. https://bugs.launchpad.net/bugs/1781754 Title: Ubuntu BIONIC needs libinput10 1.11.1-1 to get decent synaptics support Status in libinput package in Ubuntu: New Bug description: I have had quite some issues with the touchpad on my 2013 DELL XPS 13 since installing 18.04. It worked fine on previous versions. Typical observations: - lag - cursor movements being interrupted - more lag - single/double tap not being detected consistently - did I mention lag? Long story short: I understand 18.04 moves support for this touchpad from the synaptics driver to libinput. libinput10 1.10 apparently does not work well for this hardware, and adding the xserver-xorg-input- synaptics package did not bring back the good experience entirely. After looking into https://bugs.freedesktop.org/show_bug.cgi?id=104990 I decided to install the libinput .deb from Cosmic (current 1.11.1-1) which required libinput-bin as well. After installing both, the touchpad works as expected. Bionic is LTS, and these XPS machines have been a commercial reference for Ubuntu. I'd suggest to backport this solution to Bionic. I'm not sure HWE will bring it but even then impact for new installations could already be big. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1781754/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
