Ubuntu
linux package

  1. Bug #787738
  2. Comment #25

Comment 25 for bug 787738

Revision history for this message
In , manjo.ubuntu (manjo.ubuntu-linux-kernel-bugs) wrote :

I have a similar problem with the X220, from what I found was, if you disable the touchpad in the bios, the trackpoint will work flawlessly. It will be recognized as a IBM Trackpoint device. If you enable the touchpad, the trackpoint is setup as a pass-through device and psmouse_probe() fails to get a valid ID from the controller. Digging deeper it seems like the controller is NAKing ID requests. Could this be a firmware/bios issue?