Try the Standard Configs
I hope this info isn't too basic. I have an HP laptop with a Synaptics touchpad. I haven't seen this keyboard shortcut before. I would start with the standard settings managers first:
1. Keyboard Shortcuts - There might be a shortcut key to toggle the pad set here. If you can't find it the System --> Configuration menu, type gnome-keybinding-properties in a bash shell.
2. Keyboard Settings - If you can't find this in the System --> Configuration folder, you can type gnome-keyboard-properties in a bash shell. Check the Mouse Keys tab.
3. As root in a shell, type SaX2. This is the X11 configuration editor. There should be a section for Mouse. It should list all the mice you have configured. My section didn't have anything about a shortcut, but yours might.
4. Take a peek at /etc/X11/xorg.conf file. You may have to Google a bit for correct settings. There may be other config files in play here, but I don't know what they are.
For reference, here is the listing in my xorg.conf for my touchpad:
Option "Buttons" "5"
Option "Device" "/dev/input/mice"
Option "Emulate3Buttons" "on"
Option "InputFashion" "Mouse"
Option "Name" "Touchpad"
Option "Protocol" "explorerps/2"
Option "SHMConfig" "on"
Option "Vendor" "Synaptics"
Option "ZAxisMapping" "4 5"
Last edited by idoneous; 09-06-2010 at 03:07 PM.