** Description changed: - Binary package hint: pencil + SRU Justification: + + Impact: Wacom tablet users rely on pressure information for drawing in + applications like Krita and Pencil. When the multitouch Qt patches were + added to Natty, they disabled the pressure support. This is a fairly + major regression of functionality. + + How Addressed: The multitouch patch disabled XInput 1.x support in favor + of XInput 2.1 support. According to the original patch developer, Denis + Dzuybenko, this was likely an oversight due to how the patch was + developed. After re-enabling XInput 1.x support, pressure data from + Wacom tablets began working, and touch input functioned normally. + + Patch: http://bazaar.launchpad.net/~kubuntu- + packagers/qt/ubuntu/revision/173 + + Test Case: Install krita or pencil and try to draw with a wacom tablet. + See it not work. Install the updated package. Try again. See it work. + Note: This test case requires specialized hardware to execute. + + Regression Potential: Minimal. This patch merely re-enables lost + functionality. The only concern is whether this will disrupt the XInput + 2.1 multitouch functionality, but in theory it should not and testing + shows this to be the case. + + ----- I've noticed Wacom pressure is broken with QT applications only: it works with gimp and Mypaint, but not in Krita or Pencil (I'm using Krita git-master development version, so I couldn't make a report on Krita package but it is concerned too.. I installed Pencil just to confirm it happens also with a package from the repository, and it's almost the only other pressure-sensitive drawing QT application I know ). Some idea: I reported this bug to Krita developers, one of them thinks it may be caused by some "Ubuntu specific" modifications for tablet-pc, as it doesn't happen on a Debian with the same version of KDE+QT+linuxwacom… TEST CASE: Install krita or pencil and try to draw with a wacom tablet. See it not work. Install the updated package. Try again. See it work. Note: This test case requires specialized hardware to execute.
-- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to koffice2 in Ubuntu. https://bugs.launchpad.net/bugs/762938 Title: Wacom Pressure broken with Qt applications To manage notifications about this bug go to: https://bugs.launchpad.net/koffice/+bug/762938/+subscriptions -- kubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
