My touchpad has been working until suddenly it stopped detecting input, or button clicks. If I run lsinput, I see that it is in fact detected.

(/dev/input/event6 bustype : BUS_I8042 vendor : 0x2 product : 0x7 version : 433 name : "SynPS/2 Synaptics TouchPad" phys : "isa0060/serio1/input0" bits ev : EV_SYN EV_KEY EV_ABS)

If I go into mouse settings, there is only my USB mouse there, no touchpad. I don't want to use my laptop with only a USB mouse. Help?

EDIT: Touchpad settings DO appear in mouse settings. They weren't there last time I checked. Interesting.

(Running Ubuntu 16.04 LTS)

sudo apt autoremove

solved problem for me. It seems that with frequent updates something was colliding.

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