I have a similar problem in Ubuntu 20.04 Dell Precision 5510. The touchpad randomly ignores 'clicks'. (both mechanical and touch clicks).
I get similar results from xinput --list: $ xinput --list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ PS/2 Generic Mouse id=16 [slave pointer (2)] ⎜ ↳ DLL06E5:01 06CB:7A13 Mouse id=11 [slave pointer (2)] ⎜ ↳ DLL06E5:01 06CB:7A13 Touchpad id=12 [slave pointer (2)] AND, have similar errors in the boot and shutdown log files: psmouse serio1: Failed to enable mouse on isa0060/serio1 psmouse serio1: Failed to enable mouse on isa0060/serio1 psmouse serio1: Failed to deactivate mouse on isa0060/serio1: -5 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/1876991 Title: Touchpad started appearing both as a touchpad and as a mouse input devices after upgrade to 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1876991/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

