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.
R. Jäschke, A. Hotho, C. Schmitz, and G. Stumme. Proc. 18. Workshop Grundlagen von Datenbanken, page 80-84. Halle-Wittenberg, Martin-Luther-Universität, (June 2006)
J. Hidalgo, G. Bringas, E. Sánz, and F. García. DocEng '06: Proceedings of the 2006 ACM symposium on Document engineering, page 107--114. New York, NY, USA, ACM Press, (2006)
M. Kayed, and K. Shaalan. IEEE Transactions on Knowledge and Data Engineering, 18 (10):
1411--1428(2006)Member-Chia-Hui Chang and Member-Moheb Ramzy Girgis.