Unfortunately the two patches I cherry-picked for qtbase do not seem to fix the problem for me on that Dell laptop where I'm able to reproduce the problem.
I also included updated libxcb since I saw http://cgit.freedesktop.org/xcb/libxcb/commit/?id=be0fe56c3bcad5124dcc6c47a2fad01acd16f71a mentioned in a bug report and the bug might be something fixable there too. For now I'm out of ideas. An X.org expert would be welcome to investigate, since most probably the bug is either in libxcb itself or the Qt's xcb plugin. ** Changed in: qtbase-opensource-src (Ubuntu) Assignee: Timo Jyrinki (timo-jyrinki) => (unassigned) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libxcb in Ubuntu. https://bugs.launchpad.net/bugs/1318584 Title: qt crashed when switching video out mode to external or internal only mode Status in Checkbox - Graphical Test Runner: Confirmed Status in OEM Priority Project: Confirmed Status in OEM Priority Project trusty series: New Status in Qt: New Status in “libxcb” package in Ubuntu: New Status in “qtbase-opensource-src” package in Ubuntu: Confirmed Bug description: checkbox-gui crashed with following console outputs: pure virtual method called terminate called without an active exception Aborted (core dumped) Steps to reproduce: 1. open checkbox-gui 2. connected external display 3. switch video output mode, usually by using the common video output switch hotkey. Expected result: checkbox-gui still running when switching back to extended desktop video out mode. Actual result: checkbox-gui crashed --- https://bugreports.qt-project.org/browse/QTBUG-39663 To manage notifications about this bug go to: https://bugs.launchpad.net/checkbox-gui/+bug/1318584/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
