Comment 22 for bug 1740894

Sorry but it's still a bit confusing to me so taking a step back
- on a stock XPS with the non-SRU version, what keycode do you get in xev
- on a stock cosmic what happens when you use the key
- does that command works to get out of airplane mode?

gdbus call --session --dest org.gnome.SettingsDaemon.Rfkill \
           --object-path /org/gnome/SettingsDaemon/Rfkill \
           --method org.freedesktop.DBus.Properties.Set \
                    org.gnome.SettingsDaemon.Rfkill AirplaneMode '<false>'

(https://bugzilla.gnome.org/show_bug.cgi?id=760517 is the upstream bug which discussed the current handling of that key in g-s-d)