I'd like to use some of the Unity multitouch features. I know my touchpad supports 2 finger gestures since it scrolls when I 2 finger drag on the touchpad.
How can I test to see if my touchpad supports three and four finger gestures? All the hardware documentation just mentions that the touchpad is multitouch and doesn't specify how many fingers it support. It's a Thinkpad X120e and this is what dmesg says:
[ 14.821482] Synaptics Touchpad, model: 1, fw: 7.5, id: 0x1e0b1, caps: 0xd000b3/0x340000/0xa0400 [ 14.821498] serio: Synaptics pass-through port at isa0060/serio4/input0 [ 14.864676] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio4/input/input7