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.
M. Atzmueller, and F. Lemmerich. International Symposium on Methodologies for Intelligent Systems (ISMIS), page 35--44. Berlin, Heidelberg, Springer Berlin Heidelberg, (2009)
R. Kumar, M. Raghu, T. Sarlós, and A. Tomkins. International Conference on World Wide Web, page 411--419. International World Wide Web Conferences Steering Committee, (2017)