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.
G. Koutrika, F. Effendi, Z. Gyöngyi, P. Heymann, und H. Garcia-Molina. AIRWeb '07: Proceedings of the 3rd international workshop on Adversarial information retrieval on the web, Seite 57--64. New York, NY, USA, ACM Press, (2007)
S. Rendle, L. Marinho, A. Nanopoulos, und L. Schmidt-Thieme. KDD '09: Proceedings of the 15th ACM SIGKDD international conference on Knowledge discovery and data mining, Seite 727--736. New York, NY, USA, ACM, (2009)