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.
P. Newson, and J. Krumm. Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, page 336--343. ACM, (2009)
S. Brakatsoulas, D. Pfoser, R. Salas, and C. Wenk. Proceedings of the 31st International Conference on Very Large Data Bases, page 853--864. VLDB Endowment, (2005)
R. Rana, C. Chou, S. Kanhere, N. Bulusu, and W. Hu. Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks, page 105--116. ACM, (2010)