Comment 42 for bug 790130

I have solved this problem in Ubuntu 12.04 by two ways:

The first thing that you can do is create an script which disables overlay_scrollbars and after starts Inkscape and the other thing that you can do is uninstall the overlay_scrollbars

1.Create a new empty document and write this code inside of it (whit gedit for example):

export LIBOVERLAY_SCROLLBAR=0
inkscape

After that,rename the empty document to "Inkscape Wacom pressure.sh" (or another name that you want,the important is the ".sh").Afther that,right click in the empty document and,in properties,make the file executable.Whit this done,if you make a double click in the file and press execute,Inkscape will appear and Wacom pressure is going to be allright.

2.Open terminal and paste this:

sudo apt-get remove overlay-scrollbar liboverlay-scrollbar-0.2-0 liboverlay-scrollbar3-0.2-0 (for UBUNTU 12.04)

sudo apt-get remove overlay-scrollbar liboverlay-scrollbar-0.1-0 (for UBUNTU 11.04 and 11.10)

Press enter and when you restart your computer or your session,overlay_scrollbars will be uninstalled and Wacom pressure on Inkscape will be ok.