The crash was a fatal error from QtMir, but I can't find the corresponding message in unity8.log... (?)
Stacktrace: #0 0x0000007f9db46528 in raise () from /lib/aarch64-linux-gnu/libc.so.6 No symbol table info available. #1 0x0000007f9db479e0 in abort () from /lib/aarch64-linux-gnu/libc.so.6 No symbol table info available. #2 0x0000007f9dea18cc in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/aarch64-linux-gnu/libQt5Core.so.5 No symbol table info available. #3 0x0000007f98b70c0c in QMirServer::start() () from /usr/lib/aarch64-linux-gnu/qt5/plugins/platforms/libqpa-mirserver.so No symbol table info available. #4 0x0000007f98b8a294 in MirServerIntegration::initialize() () from /usr/lib/aarch64-linux-gnu/qt5/plugins/platforms/libqpa-mirserver.so No symbol table info available. #5 0x0000007f9e88a6dc in QGuiApplicationPrivate::eventDispatcherReady() () from /usr/lib/aarch64-linux-gnu/libQt5Gui.so.5 No symbol table info available. #6 0x0000007f9e08e7ac in QCoreApplicationPrivate::init() () from /usr/lib/aarch64-linux-gnu/libQt5Core.so.5 No symbol table info available. #7 0x0000007f9e88c1c8 in QGuiApplicationPrivate::init() () from /usr/lib/aarch64-linux-gnu/libQt5Gui.so.5 No symbol table info available. #8 0x0000007f9e88ce54 in QGuiApplication::QGuiApplication(int&, char**, int) () from /usr/lib/aarch64-linux-gnu/libQt5Gui.so.5 No symbol table info available. #9 0x000000000040a158 in ?? () No symbol table info available. #10 0x0000000000406a7c in ?? () No symbol table info available. #11 0x0000007f9db348a0 in __libc_start_main () from /lib/aarch64-linux-gnu/libc.so.6 No symbol table info available. #12 0x0000000000406be0 in _start () No symbol table info available. ** Summary changed: - Unity8 crash while locking/unlocking with hdmi plugged + Unity8 crash while locking/unlocking with HDMI plugged ** Also affects: canonical-devices-system-image Importance: Undecided Status: New ** Also affects: qtmir (Ubuntu) Importance: Undecided Status: New ** Changed in: canonical-devices-system-image Status: New => Confirmed ** Changed in: qtmir (Ubuntu) Status: New => Confirmed ** Tags added: android multimonitor -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1639853 Title: Unity8 crash while locking/unlocking with HDMI plugged Status in Canonical System Image: Confirmed Status in qtmir package in Ubuntu: Confirmed Status in unity8 package in Ubuntu: Confirmed Bug description: Environment: current build number: 76 device name: frieza_arm64 channel: ubuntu-touch/staging/ubuntu last update: 2016-11-07 08:03:44 version version: 76 version ubuntu: 20161105 version device: 20161014.0 version custom: 20161105 Steps to reproduce: 1º Connect hdmi 2º Lock/unlock device several times Current result: locking/unlocking device causes greeter to misbehave and finally the ubuntu boot logo appears. Attached some logs and crash files, hope it helps Expected result: unity8 should not crash Add info: time stamp 16:07 To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1639853/+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