To be clear, the above debugging output is with xkb-data 2.23.1-1ubuntu1.18.10.1 installed and therefore the DISabling of airplane mode by the dedicated key being broken
$ aptitude show xkb-data Package: xkb-data Version: 2.23.1-1ubuntu1.18.10.1 State: installed -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xkeyboard-config in Ubuntu. https://bugs.launchpad.net/bugs/1740894 Title: KEY_RFKILL is not passed to userspace To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libxkbcommon/+bug/1740894/+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