I let some friends use my laptop (acer aspire s7) and when i got it back (they had no idea what they were doing) this had happened, what i've found so far: 1) down arrow disables touchpad 2) delete enables touchpad 3) up- and right arrow does not do anything
I have checked xev, and down arrow and delete does indeed say touchpadOn/Off. I have ubuntu 14.04
I found my exact problem in an older thread but no response:
Please help me!
12 Answers
have you tried checking the "input" under system settings? I don't have it in front of me but I believe the tab "gestures and shortcuts" would solve your problem. Or just hit "restore default settings (on that tab, not the whole system)". Other than that you would have to find the folder and file for your keyboard mapping. Also check to see if they changed the keyboard layout in "input" as well.
I had same problem, You simply put Your keyboard ps2 plug into a mouse socket, just switch it to the right socket (purple one).
