Tablet Pressure under Linux?

I’ve got here a TB-7300 ( which works great no matter what the wacom-fanboys tell you :stuck_out_tongue: ). Now I would like to use it in blender. As a mouse it works there but the entire pressure sensitivity does not work. This seems though to be a blender-linux problem and not related to the tablet since GIMP works flawlessly with sensitivity.

Anybody has knows how I can get blender to use my tablet and the pressure sensitivity of it? Somebody wrote the device has to be named “stylus” to be recognized by blender but this did not work. Anything special you have to do?