Recently I installed Ubuntu 12.10 in my Surface Pro, and everything works just fine out of the box. But note-taking programs like Xournal, Jarnal are misbehaving in a bad way.
In xournal, suddenly the screen gets filled with straight lines that I did not draw.
In Jarnal, it is even worse, the stylus draws all sorts of crazy curves while hovering over the screen (yes, the stylus does not even need to touch the screen!).
What is strange is that when I installed Ubuntu 12.10 in virtualbox (Windows 8 Host), they worked perfectly.
I will appreciate very much if anyone could give some suggestion on how to resolve this.