It appears Unity8 crashed (in Mir) when changing display configuration (which is probably the setting of the display power mode to standby/suspend/off):
[2017-01-13 10:28:09.313008] mirserver: New display configuration: [2017-01-13 10:28:09.313637] mirserver: Output 37: eDP connected, used [2017-01-13 10:28:09.313807] mirserver: Physical size 11,6" 260x140mm [2017-01-13 10:28:09.313949] mirserver: Current mode 1366x768 60,08Hz [2017-01-13 10:28:09.314087] mirserver: Preferred mode 1366x768 60,08Hz [2017-01-13 10:28:09.314253] mirserver: Logical position +0+0 [2017-01-13 10:28:09.314387] mirserver: Output 34: VGA disconnected [2017-01-13 10:28:09.314521] mirserver: Output 46: DisplayPort disconnected [2017-01-13 10:28:09.314654] mirserver: Output 48: HDMI-A disconnected [2017-01-13:10:28:09.314] qtmir.screens: QtCompositor::stop [2017-01-13:10:28:09.316] qtmir.screens: ScreensModel::onCompositorStopping [2017-01-13:10:28:09.316] qtmir.screens: ScreenWindow::setExposed 0x1467100 false 0x7f56482557b0 [2017-01-13:10:28:09.339] qtmir.screens: ScreensModel::update [2017-01-13:10:28:09.340] qtmir.screens: Screen::setMirDisplayBuffer Screen(0x7f56482557a0) 0x7f5648159240 0x7f5648159390 [2017-01-13:10:28:09.340] qtmir.screens: ======================================= [2017-01-13:10:28:09.340] qtmir.screens: Screen(0x7f56482557a0) - id: 37 geometry: QRect(0,0 1366x768) window: 0x1467100 type: "EDP" scale: 1 [2017-01-13:10:28:09.340] qtmir.screens: ======================================= [2017-01-13:10:28:09.350] qtmir.screens: QtCompositor::start [2017-01-13:10:28:09.350] qtmir.screens: ScreensModel::onCompositorStarting [2017-01-13:10:28:09.350] qtmir.screens: ScreensModel::update [2017-01-13:10:28:09.350] qtmir.screens: ======================================= [2017-01-13:10:28:09.350] qtmir.screens: Screen(0x7f56482557a0) - id: 37 geometry: QRect(0,0 1366x768) window: 0x1467100 type: "EDP" scale: 1 [2017-01-13:10:28:09.350] qtmir.screens: ======================================= [2017-01-13:10:28:09.351] qtmir.screens: ScreenWindow::setExposed 0x1467100 true 0x7f56482557b0 terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::system_error> >' what(): Nested Mir Display Error: Failed to update EGL surface: EGL_BAD_CONTEXT (0x3006) [2017-01-13:10:28:11.613] qtmir.screens: ScreensModel::ScreensModel [2017-01-13 10:28:11.633539] mirplatform: Found graphics driver: mir:mesa-kms (version 0.25.0) [2017-01-13 10:28:11.634065] mirplatform: Found graphics driver: mir:mesa-x11 (version 0.25.0) [2017-01-13 10:28:11.636461] mirserver: Starting xkbcommon: ERROR: couldn't find a Compose file for locale "fr_FR.UTF-8" xkbcommon: ERROR: couldn't find a Compose file for locale "fr_FR.UTF-8" [2017-01-13 10:28:11.669388] mirserver: Using nested cursor [2017-01-13 10:28:11.672854] mirserver: Initial display configuration: [2017-01-13 10:28:11.673466] mirserver: Output 37: eDP connected, used [2017-01-13 10:28:11.673856] mirserver: Physical size 11,6" 260x140mm [2017-01-13 10:28:11.674229] mirserver: Current mode 1366x768 60,08Hz [2017-01-13 10:28:11.674599] mirserver: Preferred mode 1366x768 60,08Hz [2017-01-13 10:28:11.674965] mirserver: Logical position +0+0 [2017-01-13 10:28:11.675337] mirserver: Output 34: VGA disconnected [2017-01-13 10:28:11.675705] mirserver: Output 46: DisplayPort disconnected [2017-01-13 10:28:11.676162] mirserver: Output 48: HDMI-A disconnected ** Also affects: mir Importance: Undecided Status: New ** Changed in: mir Importance: Undecided => High ** Changed in: mir Status: New => Confirmed ** Changed in: mir Milestone: None => 1.0.0 ** Summary changed: - session crashes without any user action + Unity8 crashes eventually without any user action [Nested Mir Display Error: Failed to update EGL surface: EGL_BAD_CONTEXT (0x3006)] ** Tags added: nested ** Changed in: unity8 (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1656250 Title: Unity8 crashes eventually without any user action [Nested Mir Display Error: Failed to update EGL surface: EGL_BAD_CONTEXT (0x3006)] To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1656250/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs