I am using ubuntu 11.04 on my system. I want to disable the touchpad of the laptop, and for that I need the device id. Can anybody explain how to find the device ID of my device?
You can get a list of devices with the xinput list command. This should give output something like this (note the device IDs):
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Logitech USB Receiver id=8 [slave pointer (2)]
⎜ ↳ Logitech USB Receiver id=9 [slave pointer (2)]
⎜ ↳ Lite-On Technology Corp. ThinkPad USB Keyboard with TrackPoint id=12 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Power Button id=7 [slave keyboard (3)]
↳ Logitech Logitech USB Headset id=10 [slave keyboard (3)]
↳ Lite-On Technology Corp. ThinkPad USB Keyboard with TrackPoint id=11 [slave keyboard (3)]
You can disable a device by floating it. For example, I can disable the TrackPoint on my system with:
xinput float 12
You can re-enable a device by attaching it to the corresponding master device:
xinput reattach 12 2
It is also possible to use the device names instead of numeric IDs (e.g. "Virtual core pointer" instead of 2) with both of these commands if you want to write a script that is independent of the numeric IDs.
