Indeed, running "sudo libinput debug-events --verbose" results in:
event6 POINTER_MOTION +11.04s 5.07/ -9.23 event6 POINTER_MOTION +11.05s 16.95/ -2.91 event6 POINTER_MOTION +11.06s 13.15/ -4.05 event6 - palm: touch size exceeded event6 - palm: palm detected (touch size) event6 - touch-size: end touch event6 - button state: from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE ** Package changed: xserver-xorg-input-synaptics (Ubuntu) => libinput (Ubuntu) -- 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/1764097 Title: 'Apple touchpad bcm5974' unresponsive after "palm: touch size exceeded" on 'Apple MacBookPro5,4 (mid 2009)' with 1.10.4 (Ubuntu 18.04), worked fine with 1.8.2 (Ubuntu 17.10) To manage notifications about this bug go to: https://bugs.launchpad.net/libinput/+bug/1764097/+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