Package name HELP!

[Ayoub Hamdaoui]

Hi, I am using Debian 9 (Testing) with KDE
when I press hotkeys for disabling touchpad (FN + F1) the touchpad got
disabled but when I press the combination again it sends disable command
again! it doesn't toggle thee state, it disable it in all cases! so I want
to know the package name to report !
Thank you in advance!