This works for me, however, instead of looking for the device `TPPS/2 Elan Trackpoint`, I had to use the id of `TrackPoint Keyboard 2`. The downside of this fix is that pasting with the middle button does not work anymore.
J. Lee, K. Lee, and W. Kim. Proceedings of the 2001 IEEE International Conference on Data
Mining, 29 November - 2 December 2001, San Jose, California,
USA, page 345-352. IEEE Computer Society, (2001)