Upload minimal code to reproduce it. Patch is here: https://github.com/qtproject/qtbase/commit/eaa3a9d0108cdf692f1686cafefb7b834f0e5af6
** Attachment added: "Reproducible project" https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1571158/+attachment/4638102/+files/Test50081.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1571158 Title: Crash in QXcbWindow::setParent() due to NULL xcbScreen() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1571158/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs