What is the intended purpose of "# systemctl mask qingy@ttyX.service"? On my system this prevents qingy from running. From man systemctl: " mask [NAME...]
Mask one or more unit files, as specified on the command line. This will link these units to /dev/null, making it impossible to start them. This is a stronger version of disable, since it prohibits all kinds of activation of the unit, including manual activation. Use this option with care."