Mac Air trackpad suddenly doesn't respond

Question

When the trackpad stops responding, this leaves me unable to do anything, including shutting down. Is there a fix?

Answer 1

Known problem, after updating and rebooting the problem usually gets fixed. Here are instructions on how to do all that using the keyboard.

1. Press CTRL+ALT+T. This should bring up a terminal.
2. sudo apt-get update
3. sudo apt-get dist-upgrade
4. sudo reboot

Answer 2

sudo nano /etc/X11/xorg.conf

Section "InputClass"
    Identifier      "Apple Magic Trackpad"
    MatchIsTouchpad "on"
    MatchUSBID      "05ac:030e"
    Driver          "synaptics"
    Option          "VertScrollDelta"  "50"
    Option          "HorizScrollDelta" "50"
    Option          "MinSpeed"         "0.6"
    Option          "MaxSpeed"         "1.3"
    Option          "AccelFactor"      "0.08"
    # these two options are for multiple monitors 3:1 ratio.
    Option          "VertResolution"   "1"
    Option          "HorizResolution"  "3"
    Option          "SHMConfig"        "True"
EndSection

/etc/init.d/lightdm restart