Dear Martin, I purged landing-016 ppa, re-compile my application, and it crashes as expected. Then I enabled pre-released updates, updated the Qt packages to version 5.5.1+dfsg-16ubuntu7.1 from proposed, re-compile again, and the crash disappeared.
So, yes, thank you: this package fixes the crash for me! For the details, the application is camitk-imp (available in the package "camitk" version 4.0.0, which did not make it to Ubuntu 16.04), a medical image analysis and modeling software based on Qt and VTK. My machine is a (rather old) Dell M6400 laptop. Let me know if you want me to use the test case provided by Mitsuya as welle or need more information about my testing or if you need me to do further testing. Thanks to everyone for this fix and to Martin for the detailed instruction on how to test and report this package! -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtbase-opensource-src in Ubuntu. https://bugs.launchpad.net/bugs/1571158 Title: Crash in QXcbWindow::setParent() due to NULL xcbScreen() Status in qtbase-opensource-src package in Ubuntu: Fix Released Status in qtbase-opensource-src source package in Xenial: Fix Committed Bug description: [Impact] Application crash in certain situation. [Test Case] See bug comments for test app. [Regression Potential]] The fixes are in the currently release upstream LTS release (Qt 5.6), but they do touch a core component of (X11) Qt so eg multi-monitor setups should be tested for no regressions. -- Qt 5.5.1 has problem to "[QTBUG-50081] Crash in QXcbWindow::setParent() due to NULL xcbScreen()". This is already fixed in upstream. https://bugreports.qt.io/browse/QTBUG-50081 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1571158/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
