Qt4.7 tablet support (wacom) broken?

[Silvio Heinrich]

Does someone know if their is an issue with the tablet support in Qt4.7?
I just wanted to compile Krita on my notebook (to have a working version
for the krita "sprint" on my notebook) but the pressure and tilt seem
not to work and there is a strange offset when painting... but only in
Qt... means it works in Gimp.
I'm running Kubuntu 10.10 but I have the backports repo enabled, so I
got Qt4.7 (on my desktop PC I still have Qt4.6 and everything is working)

Should I do a complete upgrade to Kubuntu 11.4 (maybe it is fixed
there?). Or maybe I should downgrade to 4.6 but it seems to be
problematic to do a downgrade with apt. I havn't found any usable
solution jet.