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.
C. Liu, R. White, and S. Dumais. Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval, page 379--386. ACM, (2010)
C. Zheng, Z. Wang, R. Bie, and M. Zhou. Web Technologies and Applications: 16th Asia-Pacific Web Conference, APWeb 2014, Changsha, China, September 5-7, 2014. Proceedings, 8709, page 236. Springer, (2014)
A. Dallmann, P. Beck, and J. von Gudenberg. Parallel Processing and Applied Mathematics, volume 8385 of Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2014)