Looking at the backtrace, this happens while in QGuiApplication::init(), while the QPA plugin is being initialized.
Looking at the crash reports, for example https://errors.ubuntu.com/oops /0be65b2e-b1eb-11e5-95b9-fa163e5bb1a2, it seems that all of them have the same command line: /usr/bin/online-accounts-ui --socket /run/user/32011/online- accounts-ui/ui-2-ubuntuone --profile unconfined that is, crashes happen always when creating the UbuntuOne account. Also, from the ProcEnvironment field, I can see that the MIR_SOCKET and QT_QPA_PLATFORM environment variables are missing. My suspicion is that this bug happens while the creation of the U1 account is requested very early during the boot session, or anyway in some situation where these variables are not properly setup. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-system-settings- online-accounts in Ubuntu. https://bugs.launchpad.net/bugs/1476861 Title: /usr/bin/online-accounts- ui:6:qt_message_fatal:QMessageLogger::fatal:UbuntuClientIntegration::UbuntuClientIntegration:UbuntuMirClientIntegrationPlugin::create:loadIntegration Status in ubuntu-system-settings-online-accounts package in Ubuntu: New Bug description: The Ubuntu Error Tracker has been receiving reports about a problem regarding ubuntu-system-settings-online-accounts. This problem was most recently seen with version 0.6+15.10.20150715-0ubuntu1, the problem page at https://errors.ubuntu.com/problem/78b1c78b995da650d7f27928604b63f5c600b832 contains more details. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-system-settings-online-accounts/+bug/1476861/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp

