I can indeed confirm overlay-scrollbar as the culprit. With it installed, no pressure sensitivity. After uninstalling and restarting Inkscape, pressure sensitivity worked. After reinstalling and restarting inkscape, no pressure sensitivity.
** Also affects: ayatana-scrollbar Importance: Undecided Status: New ** Changed in: ayatana-scrollbar Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/947577 Title: Pressure sensitivity broken on Ubuntu Precise To manage notifications about this bug go to: https://bugs.launchpad.net/ayatana-scrollbar/+bug/947577/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs