libinput10 1.10.5 does have that fix. seems to be fixed in cosmic ubuntu 18.10 daily since 2018-05-06. (double tap is working as expected)
but bionic ubuntu 18.04 LTS release still uses libinput10 (1.10.4) (got no upgrade to 1.10.5 yet) -- 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/1762536 Title: double tap on touchpad isn't recognized as double click on ubuntu 18.04 bionic To manage notifications about this bug go to: https://bugs.launchpad.net/libinput/+bug/1762536/+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