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.
S. Vieweg, A. Hughes, K. Starbird, and L. Palen. Proceedings of the 28th international conference on Human factors in computing systems, page 1079--1088. ACM, (2010)
W. Reinhardt, M. Ebner, G. Beham, and C. Costa. Hornung-Pr\ähauser, V., Luckmann, M.(Hg.): 5th EduMedia conference, Salzburg, page 145--156. Citeseer, (2009)
A. Java, X. Song, T. Finin, and B. Tseng. Proceedings of the 9th WebKDD and 1st SNA-KDD 2007 workshop on Web mining and social network analysis, page 56--65. ACM, (2007)