I also had this problem. Touchpad stopped working after installation of Kernal 4.15.0-72, working fine after reverting to Kernal 4.15.0-70. Kernal intstalled using linux mint update manager, and removed again with update manager.
Although I occasionally use the terminal, I am an ex Windows user and find the Gui packages easier to use. Laptop is a Dell Inspiron 15 3000 series - running Linux Mint 18.3 and Windows 10 in dual boot configuration. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854896 Title: Synaptics TM3336-004 Touchpad Stopped working after update to the latest kernel 4.15.0-72 generic Status in linux package in Ubuntu: Incomplete Bug description: Please see to it, my touchpad all of a sudden stopped working after reboot. it happened after updating to the latest kernel 4.15.0-72, i am using linux mint 19.2. Pointer version: Synaptics TM3336-004 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1854896/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp