I reinstall the ...bun... distro i have, install the newest kernel driver, input-wacom-0.12.1.tar.bz2 and always the same problem: if i don't activate the tablet in gimp, you can draw but the pressure won't work. If you activate it, even only one wacom entry, each line you draw extrude himself in 3-d, making the tablet unusable. On the other distro forum, they talk about a 11,10 bug. There is also a GUI configuration menu for the tablet but i don't know if it is the same as the one you can get via synaptic.
Next step: get earlier version of ...bun... to see how the kernel driver behave before make a package request except if one of you have a better idea.