Here is a summary of the two commands from comment #32 (above) for the X250.
1) The driver is different between the X201 and the X250 1.8.2-1ubuntu1 <-- X201 (Working) 1.8.2-1ubuntu3 <-- X250 (Not working) 2) For the X201 the apt-cache results different (none installed), while for the X250 the driver is installed. Installed: (none) Candidate: 1.8.2-1ubuntu1 <--- X201 Installed: 1.8.2-1ubuntu3 Candidate: 1.8.2-1ubuntu3 <--- X250 apt-cache policy xserver-xorg-input-synaptics xserver-xorg-input-synaptics: Installed: 1.8.2-1ubuntu3 Candidate: 1.8.2-1ubuntu3 Version table: *** 1.8.2-1ubuntu3 500 1.8. 500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages 100 /var/lib/dpkg/status dpkg -l | grep synaptics ii xserver-xorg-input-synaptics 1.8.2-1ubuntu3 amd64 Synaptics TouchPad driver for X.Org server -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1506817 Title: left TPP/2 IBM TrackPoint "sticks on" randomly (X250 15.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1506817/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs