dmesg:
[  174.877153] unity8-dash[2728]: segfault at 70 ip 00007f67d497c984 sp 
00007ffe8895e3b0 error 6 in libQt5Core.so.5.6.1[7f67d48d7000+4c6000]
[  187.475845] unity8-dash[3101]: segfault at 70 ip 00007f12fdb74984 sp 
00007ffc0544c3e0 error 6 in libQt5Core.so.5.6.1[7f12fdacf000+4c6000]
[  238.719537] perf: interrupt took too long (2551 > 2500), lowering 
kernel.perf_event_max_sample_rate to 78250
[  252.793405] unity8-dash[4714]: segfault at 70 ip 00007fd3ddb34984 sp 
00007ffd4bfcfab0 error 6 in libQt5Core.so.5.6.1[7fd3dda8f000+4c6000]
[  265.401260] unity8-dash[5023]: segfault at 70 ip 00007f56dffc8984 sp 
00007ffca23a0100 error 6 in libQt5Core.so.5.6.1[7f56dff23000+4c6000]
[  277.993564] unity8-dash[5320]: segfault at 70 ip 00007fbb5032b984 sp 
00007ffe802a2800 error 6 in libQt5Core.so.5.6.1[7fbb50286000+4c6000]
[  285.183803] perf: interrupt took too long (3191 > 3188), lowering 
kernel.perf_event_max_sample_rate to 62500
[  290.306736] unity8-dash[5626]: segfault at 70 ip 00007ff01a195984 sp 
00007fff65fefc60 error 6 in libQt5Core.so.5.6.1[7ff01a0f0000+4c6000]
[  302.666145] unity8-dash[5914]: segfault at 70 ip 00007f9a042c0984 sp 
00007ffc955e49b0 error 6 in libQt5Core.so.5.6.1[7f9a0421b000+4c6000]
[  589.612686] perf: interrupt took too long (4009 > 3988), lowering 
kernel.perf_event_max_sample_rate to 49750
[  591.084779] unity8-dash[7350]: segfault at 70 ip 00007fe60eb3e984 sp 
00007ffc14829ec0 error 6 in libQt5Core.so.5.6.1[7fe60ea99000+4c6000]
[  603.828240] unity8-dash[7646]: segfault at 7fec58a680f8 ip 00007fec75ad29e5 
sp 00007fff71748c80 error 7 in libQt5Core.so.5.6.1[7fec75a2d000+4c6000]
[  616.516594] unity8-dash[7942]: segfault at 7f6e06de70f8 ip 00007f6e2be529e5 
sp 00007fff70319a20 error 7 in libQt5Core.so.5.6.1[7f6e2bdad000+4c6000]
[  628.953358] unity8-dash[8244]: segfault at 70 ip 00007f6b8ffcf984 sp 
00007ffc0625b4c0 error 6 in libQt5Core.so.5.6.1[7f6b8ff2a000+4c6000]
[  641.422200] unity8-dash[8555]: segfault at 70 ip 00007f33199dc984 sp 
00007ffcaa9970a0 error 6 in libQt5Core.so.5.6.1[7f3319937000+4c6000]
[  784.955520] unity8-dash[9150]: segfault at 70 ip 00007f89bff92984 sp 
00007fff3afe0aa0 error 6 in libQt5Core.so.5.6.1[7f89bfeed000+4c6000]
[  797.465281] unity8-dash[9447]: segfault at 70 ip 00007fb0398f5984 sp 
00007ffdb842a230 error 6 in libQt5Core.so.5.6.1[7fb039850000+4c6000]
[  805.024075] perf: interrupt took too long (5044 > 5011), lowering 
kernel.perf_event_max_sample_rate to 39500
[  978.238697] unity8-dash[10912]: segfault at 70 ip 00007f43bb016984 sp 
00007ffffe7825e0 error 6 in libQt5Core.so.5.6.1[7f43baf71000+4c6000]
[  990.879361] unity8-dash[11204]: segfault at 70 ip 00007fd662f71984 sp 
00007ffc818d0270 error 6 in libQt5Core.so.5.6.1[7fd662ecc000+4c6000]
[ 1003.224196] unity8-dash[11499]: segfault at 7f1bf7614898 ip 00007f1bf71f19e5 
sp 00007ffc750c4ba0 error 7 in libQt5Core.so.5.6.1[7f1bf714c000+4c6000]
[ 1015.860341] unity8-dash[11797]: segfault at f0000000a ip 00007f2ddaa839c8 sp 
00007ffef440be70 error 4 in libQt5Core.so.5.6.1[7f2dda9de000+4c6000]
[ 1028.268991] unity8-dash[12096]: segfault at 70 ip 00007f65ed456984 sp 
00007ffe9af22410 error 6 in libQt5Core.so.5.6.1[7f65ed3b1000+4c6000]
[ 1040.622650] unity8-dash[12390]: segfault at 70 ip 00007f717cdfa984 sp 
00007ffc422af5c0 error 6 in libQt5Core.so.5.6.1[7f717cd55000+4c6000]
[ 1053.315821] unity8-dash[12690]: segfault at 1a00000017 ip 00007f3536d579c8 
sp 00007ffcf0c99a80 error 4 in libQt5Core.so.5.6.1[7f3536cb2000+4c6000]
[ 1065.776643] unity8-dash[12997]: segfault at 55ef0000000a ip 00007fa89c1989c8 
sp 00007fffac69db70 error 4 in libQt5Core.so.5.6.1[7fa89c0f3000+4c6000]
[ 1078.308189] unity8-dash[13290]: segfault at 70 ip 00007f6d8a223984 sp 
00007ffe1500d870 error 6 in libQt5Core.so.5.6.1[7f6d8a17e000+4c6000]

-- 
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https://bugs.launchpad.net/bugs/1627942

Title:
  unity8 of 16.10 can't start, keep black screen, lenovo R61i

Status in Canonical System Image:
  Incomplete
Status in unity8 package in Ubuntu:
  Incomplete

Bug description:
  I only install openbox, LXQT and Unity8 session.
  LxQt is fine.

  After input password,
  The screen is black few seconds.
  Next in screen there are is a small rectangle with text "Scope".
  Next In the rectangle there is a ubuntu arc logo is rolling.
  Next the rolling logo is frozen.
  Next all are black few seconds.
  From a ssh console ,I can see the cpu rate of unity8, unity8.dash or applet.y 
is very high(70% --100%)

  And again and again.

  If anybody need more info, comments on the issue.
  This is its upstart.log:

  [2016-09-27:13:35:18.182] qtmir.screens: ScreensModel::ScreensModel
  [2016-09-27 13:35:18.198252] mirplatform: Found graphics driver: mir:mesa-kms 
(version 0.24.0)
  [2016-09-27 13:35:18.198494] mirplatform: Found graphics driver: mir:mesa-x11 
(version 0.24.0)
  [2016-09-27:13:35:18.200] qtmir.mir: MirServer created
  [2016-09-27:13:35:18.200] qtmir.mir: Command line arguments passed to Qt: 
("unity8", "--mode=full-shell")
  [2016-09-27:13:35:18.203] QSocketNotifier: Can only be used with threads 
started with QThread
  [2016-09-27 13:35:18.204972] mirserver: Starting
  [2016-09-27 13:35:18.254431] mirserver: Using nested cursor
  [2016-09-27 13:35:18.255972] mirserver: Initial display configuration:
  [2016-09-27 13:35:18.258509] mirserver:   0.30: LVDS 14.0" 300x190mm
  [2016-09-27 13:35:18.258591] mirserver:         Current mode 1280x800 60.00Hz
  [2016-09-27 13:35:18.258637] mirserver:         Preferred mode 1280x800 
60.00Hz
  [2016-09-27 13:35:18.258672] mirserver:         Logical position +0+0
  [2016-09-27 13:35:18.258716] mirserver:   0.40: unused VGA
  [2016-09-27 13:35:18.258755] mirserver:   0.43: unused DVI-D
  [2016-09-27:13:35:18.259] qtmir.mir: 
PromptSessionListener::PromptSessionListener - this= 
PromptSessionListener(0x7f5b6c204630)
  [2016-09-27:13:35:18.259] qtmir.mir: SessionListener::SessionListener - this= 
SessionListener(0x7f5b6c204540)
  [2016-09-27:13:35:18.261] qtmir.mir: 
MirWindowManagerImpl::MirWindowManagerImpl
  [2016-09-27 13:35:18.263049] mirserver: Mir version 0.24.0
  [2016-09-27:13:35:18.263] qtmir.screens: QtCompositor::start
  [2016-09-27:13:35:18.342] qtmir.screens: ScreensModel::update
  [2016-09-27:13:35:18.343] qtmir.sensor: Screen - nativeOrientation is: 
Qt::ScreenOrientation(LandscapeOrientation)
  [2016-09-27:13:35:18.344] qtmir.sensor: Screen - initial currentOrientation 
is: Qt::ScreenOrientation(LandscapeOrientation)
  [2016-09-27:13:35:18.355] qtmir.screens: Added Screen with id 30 and geometry 
QRect(0,0 1280x800)
  [2016-09-27:13:35:18.355] qtmir.screens: Screen::setMirDisplayBuffer 
Screen(0x5570d2904f40) 0x7f5b6c1d2ca0 0x7f5b6c2028f0
  [2016-09-27:13:35:18.355] qtmir.screens: 
=======================================
  [2016-09-27:13:35:18.355] qtmir.screens: Screen(0x5570d2904f40) - id: 30 
geometry: QRect(0,0 1280x800) window: 0x0 type: "LVDS" scale: 1
  [2016-09-27:13:35:18.355] qtmir.screens: 
=======================================
  [2016-09-27:13:35:18.484] qtmir.applications: 
UnityApplicationPlugin::registerTypes - this= 
UnityApplicationPlugin(0x7f5b40047ba0) uri= Unity.Application
  [2016-09-27:13:35:20.824] Using "/etc/ubuntu/devices.conf" as device 
configuration file
  [2016-09-27:13:35:20.832] QObject: Cannot create children for a parent that 
is in a different thread.
  (Parent is DashCommunicator(0x5570d2a8fbf0), parent's thread is 
QThread(0x5570d28a83f0), current thread is DashCommunicator(0x5570d2a8fbf0)
  [2016-09-27:13:35:20.833] unity.topsurfacelist: TopLevelSurfaceList()
  [2016-09-27:13:35:20.834] qtmir.surfaces: MirSurfaceItem::MirSurfaceItem
  [2016-09-27:13:35:20.842] 
file:///usr/share/unity8//Components/Showable.qml:43: Error: Cannot assign to 
non-existent property "target"
  [2016-09-27:13:35:20.843] 
file:///usr/share/unity8//Components/Showable.qml:42: Error: Cannot assign to 
non-existent property "target"
  [2016-09-27:13:35:20.891] Fail to connect with service: 
QDBusError("org.freedesktop.DBus.Error.ServiceUnknown", "The name 
com.canonical.pim was not provided by any .service files")
  [2016-09-27:13:35:21.211] Failed to get all properties for 
"com.ubuntu.location.providers.here.AccountsService" : "No such interface"
  [2016-09-27:13:35:21.226] CursorImageProvider: "" not found (nor its 
fallbacks, if any). Going for "left_ptr" as a last resort.
  [2016-09-27:13:35:21.257] qtmir.applications: applicationManagerSingleton - 
engine= 0x5570d28e7cd0 scriptEngine= 0x5570d28e7cd0
  [2016-09-27:13:35:21.278] qtmir.applications: 
ApplicationManager::ApplicationManager (this=%p) 
qtmir::ApplicationManager(0x5570d2bf3660)
  [2016-09-27:13:35:21.293] qtmir.applications: surfaceManagerSingleton - 
engine= 0x5570d28e7cd0 scriptEngine= 0x5570d28e7cd0
  [2016-09-27:13:35:21.293] qtmir.sessions: SessionManager::SessionManager - 
this= qtmir::SessionManager(0x5570d2bfcc10)
  [2016-09-27:13:35:21.293] qtmir.surfaces: 
MirSurfaceManager::MirSurfaceManager - this= 
qtmir::MirSurfaceManager(0x5570d2bfd520)
  [2016-09-27:13:35:21.293] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  initctl: No such variable: UNITY_MIR_SOCKET
  [2016-09-27:13:35:21.315] Couldn't find a .desktop file for "dialer-app" . 
Skipping...
  [2016-09-27:13:35:21.319] Couldn't find a .desktop file for "messaging-app" . 
Skipping...
  [2016-09-27:13:35:21.340] Couldn't find a .desktop file for 
"com.ubuntu.camera_camera" . Skipping...
  [2016-09-27:13:35:21.346] Couldn't find a .desktop file for 
"com.ubuntu.gallery_gallery" . Skipping...
  [2016-09-27:13:35:21.429] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:21.431] unity.topsurfacelist: 
setApplicationsModel(qtmir::ApplicationManager(0x5570d2bf3660, name = 
qtmir::ApplicationManager))
  [2016-09-27:13:35:21.664] qtmir.mir: SessionAuthorizer::connection_is_allowed 
- this= SessionAuthorizer(0x7f5b6c1aa9d0) pid= 31124
  [2016-09-27:13:35:22.177] Failed to initialize lights hardware.
  [2016-09-27:13:35:22.177] No lights device
  Attempted to unregister path (path[0] = null path[1] = null) which isn't 
registered
  [2016-09-27:13:35:22.962] This backend doesn't support multiple users
  [2016-09-27:13:35:24.831] 
file:///usr/share/unity8//Tutorial/TutorialContent.qml:137:5: QML Loader: 
Binding loop detected for property "active"
  [2016-09-27:13:35:24.831] 
file:///usr/share/unity8//Tutorial/TutorialContent.qml:103:5: QML Loader: 
Binding loop detected for property "active"
  [2016-09-27:13:35:24.831] 
file:///usr/share/unity8//Tutorial/TutorialContent.qml:70:5: QML Loader: 
Binding loop detected for property "active"
  [2016-09-27:13:35:25.639] qml: Calculating new usage mode. Pointer devices: 0 
current mode: Windowed old device count 0 root width: 40 height: 71
  [2016-09-27:13:35:25.645] 
file:///usr/share/unity8//Tutorial/TutorialContent.qml:137:5: QML Loader: 
Binding loop detected for property "active"
  [2016-09-27:13:35:25.648] 
file:///usr/share/unity8//Tutorial/TutorialContent.qml:103:5: QML Loader: 
Binding loop detected for property "active"
  [2016-09-27:13:35:25.652] 
file:///usr/share/unity8//Tutorial/TutorialContent.qml:70:5: QML Loader: 
Binding loop detected for property "active"
  [2016-09-27:13:35:25.924] 
file:///usr/share/unity8//Panel/IndicatorItem.qml:141:5: QML Label: Binding 
loop detected for property "text"
  [2016-09-27:13:35:25.937] 
file:///usr/share/unity8//Panel/IndicatorItem.qml:141:5: QML Label: Binding 
loop detected for property "text"
  [2016-09-27:13:35:25.943] 
file:///usr/share/unity8//Panel/IndicatorItem.qml:141:5: QML Label: Binding 
loop detected for property "text"
  [2016-09-27:13:35:25.950] 
file:///usr/share/unity8//Panel/IndicatorItem.qml:141:5: QML Label: Binding 
loop detected for property "text"
  [2016-09-27:13:35:25.957] 
file:///usr/share/unity8//Panel/IndicatorItem.qml:141:5: QML Label: Binding 
loop detected for property "text"
  [2016-09-27:13:35:25.964] 
file:///usr/share/unity8//Panel/IndicatorItem.qml:141:5: QML Label: Binding 
loop detected for property "text"
  [2016-09-27:13:35:25.970] 
file:///usr/share/unity8//Panel/IndicatorItem.qml:141:5: QML Label: Binding 
loop detected for property "text"
  [2016-09-27:13:35:25.977] 
file:///usr/share/unity8//Panel/IndicatorItem.qml:141:5: QML Label: Binding 
loop detected for property "text"
  [2016-09-27:13:35:25.986] 
file:///usr/share/unity8//Stages/DesktopSpread.qml:467:33: Unable to assign 
[undefined] to QUrl
  [2016-09-27:13:35:25.988] qtmir.screens: Screen::setWindow - new geometry for 
shell surface ShellView(0x5570d29fe840) QRect(0,0 1280x800)
  [2016-09-27:13:35:25.988] qtmir.screens: ScreenWindow 0x5570d31a2e20 with 
window ID 1 backed by Screen(0x5570d2904f40) with ID 30
  [2016-09-27:13:35:25.989] qtmir.screens: QWindow ShellView(0x5570d29fe840) 
with geom QRect(0,0 1280x800) is backed by a Screen(0x5570d2904f40) with 
geometry QRect(0,0 1280x800)
  [2016-09-27:13:35:25.990] qml: Calculating new usage mode. Pointer devices: 0 
current mode: Staged old device count 0 root width: 160 height: 71
  [2016-09-27:13:35:26.004] qtmir.screens: ScreensModel::onCompositorStarting
  [2016-09-27:13:35:26.005] qtmir.screens: ScreensModel::update
  [2016-09-27:13:35:26.005] qtmir.screens: Screen::setMirDisplayBuffer 
Screen(0x5570d2904f40) 0x7f5b6c1d2ca0 0x7f5b6c2028f0
  [2016-09-27:13:35:26.005] qtmir.screens: 
=======================================
  [2016-09-27:13:35:26.005] qtmir.screens: Screen(0x5570d2904f40) - id: 30 
geometry: QRect(0,0 1280x800) window: 0x5570d31a2e20 type: "LVDS" scale: 1
  [2016-09-27:13:35:26.005] qtmir.screens: 
=======================================
  [2016-09-27:13:35:26.005] qtmir.screens: ScreenWindow::setExposed 
0x5570d31a2e20 true 0x5570d2904f50
  [2016-09-27:13:35:26.007] qtmir.applications: 
ApplicationManager::authorizeSession - pid= 31124
  [2016-09-27:13:35:26.009] qtmir.applications: Process supplied 
desktop_file_hint, loading: "unity8-dash"

  ** (process:31095): WARNING **: Unable to get snap information for 
'': Status code is: 404
  [2016-09-27:13:35:26.037] qtmir.applications: New process with pid 31124 
appeared, adding new application to the application list with appId: 
"unity8-dash"
  [2016-09-27:13:35:26.037] qtmir.applications: 
Application["unity8-dash"]::Application()
  [2016-09-27:13:35:26.037] qtmir.applications: 
ApplicationManager::add(appId="unity8-dash")
  [2016-09-27:13:35:26.037] unity.topsurfacelist: addApplication(unity8-dash)
  [2016-09-27:13:35:26.037] unity.topsurfacelist: appendPlaceholder(unity8-dash)
  [2016-09-27:13:35:26.046] qtmir.surfaces: MirSurfaceItem::MirSurfaceItem
  [2016-09-27:13:35:26.054] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.054] qtmir.surfaces: 
MirSurfaceItem::setOrientationAngle(0)
  [2016-09-27:13:35:26.054] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.297] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(-1, -1))
  [2016-09-27:13:35:26.301] qtmir.surfaces: MirSurfaceItem::MirSurfaceItem
  [2016-09-27:13:35:26.308] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.308] qtmir.surfaces: 
MirSurfaceItem::setOrientationAngle(0)
  [2016-09-27:13:35:26.308] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.348] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(-1, -1))
  [2016-09-27:13:35:26.359] qtmir.surfaces: MirSurfaceItem::MirSurfaceItem
  [2016-09-27:13:35:26.367] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.368] qtmir.surfaces: 
MirSurfaceItem::setOrientationAngle(0)
  [2016-09-27:13:35:26.368] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.410] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(80, 56))
  [2016-09-27:13:35:26.450] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(320, 56))
  [2016-09-27:13:35:26.451] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(320, 376))
  [2016-09-27:13:35:26.459] qtmir.surfaces: MirSurfaceItem::MirSurfaceItem
  [2016-09-27:13:35:26.465] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.465] qtmir.surfaces: 
MirSurfaceItem::setOrientationAngle(0)
  [2016-09-27:13:35:26.465] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.499] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(-1, -1))
  [2016-09-27:13:35:26.502] unity.topsurfacelist: raiseId(id=1) - Model busy 
(modelState=1). Try again in the next event loop.
  [2016-09-27:13:35:26.503] unity.topsurfacelist: appendSurfaceHelper after 
(index=0,appId=unity8-dash,surface=0x0,id=1)
  [2016-09-27:13:35:26.506] qtmir.applications: 
ApplicationManager::add(appId="unity8-dash") - after "unity8-dash"
  [2016-09-27:13:35:26.506] qtmir.mir: 
SessionAuthorizer::configure_display_is_allowed - this= 
SessionAuthorizer(0x7f5b6c1aa9d0) pid= 31124
  [2016-09-27:13:35:26.506] qtmir.mir: 
SessionAuthorizer::set_base_display_configuration_is_allowed - this= 
SessionAuthorizer(0x7f5b6c1aa9d0) pid= 31124
  [2016-09-27:13:35:26.507] qtmir.mir: SessionAuthorizer::screencast_is_allowed 
- this= SessionAuthorizer(0x7f5b6c1aa9d0) pid= 31124
  [2016-09-27:13:35:26.507] qtmir.mir: 
SessionAuthorizer::prompt_session_is_allowed - this= 
SessionAuthorizer(0x7f5b6c1aa9d0) pid= 31124
  [2016-09-27:13:35:26.508] qtmir.mir: SessionListener::starting - this= 
SessionListener(0x7f5b6c204540) session= 0x7f5b4c001c60
  [2016-09-27:13:35:26.633] qtmir.surfaces: MirSurfaceItem::~MirSurfaceItem - 
this= qtmir::MirSurfaceItem(0x5570d31cb590, name="surfaceItem", parent=0x0, 
geometry=0,0 568x296)
  [2016-09-27:13:35:26.634] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.721] qtmir.surfaces: MirSurfaceItem::~MirSurfaceItem - 
this= qtmir::MirSurfaceItem(0x5570d33e9280, name="surfaceItem", parent=0x0, 
geometry=0,0 0x0)
  [2016-09-27:13:35:26.722] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.729] qtmir.surfaces: MirSurfaceItem::~MirSurfaceItem - 
this= qtmir::MirSurfaceItem(0x5570d32dc9b0, name="surfaceItem", parent=0x0, 
geometry=0,0 0x0)
  [2016-09-27:13:35:26.730] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.750] Input device added: "Power Button" 
"/dev/input/event3" QFlags(0x1)
  [2016-09-27:13:35:26.751] Input device added: "Video Bus" "/dev/input/event4" 
QFlags(0x1)
  [2016-09-27:13:35:26.753] Input device added: "Lid Switch" 
"/dev/input/event1" QFlags(0x20)
  [2016-09-27:13:35:26.755] Input device added: "Sleep Button" 
"/dev/input/event2" QFlags(0x1)
  [2016-09-27:13:35:26.757] Input device added: "PixArt USB Optical Mouse" 
"/dev/input/event6" QFlags(0x2)
  [2016-09-27:13:35:26.759] Input device added: "HDA Intel Mic" 
"/dev/input/event9" QFlags(0x20)
  [2016-09-27:13:35:26.761] Input device added: "HDA Intel Dock Mic" 
"/dev/input/event10" QFlags(0x20)
  [2016-09-27:13:35:26.762] Input device added: "HDA Intel Front Headphone" 
"/dev/input/event11" QFlags(0x20)
  [2016-09-27:13:35:26.764] Input device added: "AT Translated Set 2 keyboard" 
"/dev/input/event0" QFlags(0x1|0x10)
  [2016-09-27:13:35:26.766] Input device added: "SynPS/2 Synaptics TouchPad" 
"/dev/input/event5" QFlags(0x4)
  [2016-09-27:13:35:26.768] Input device added: "TPPS/2 IBM TrackPoint" 
"/dev/input/event7" QFlags(0x2)
  [2016-09-27:13:35:26.771] Input device added: "ThinkPad Extra Buttons" 
"/dev/input/event8" QFlags(0x1|0x20)
  [2016-09-27:13:35:26.773] qml: Calculating new usage mode. Pointer devices: 1 
current mode: Staged old device count 0 root width: 160 height: 100
  [2016-09-27:13:35:26.775] 
file:///usr/share/unity8//Tutorial/TutorialContent.qml:137:5: QML Loader: 
Binding loop detected for property "active"
  [2016-09-27:13:35:26.776] 
file:///usr/share/unity8//Tutorial/TutorialContent.qml:103:5: QML Loader: 
Binding loop detected for property "active"
  [2016-09-27:13:35:26.777] 
file:///usr/share/unity8//Tutorial/TutorialContent.qml:70:5: QML Loader: 
Binding loop detected for property "active"
  [2016-09-27:13:35:26.798] qtmir.surfaces: MirSurfaceItem::MirSurfaceItem
  [2016-09-27:13:35:26.802] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.803] qtmir.surfaces: 
MirSurfaceItem::setOrientationAngle(0)
  [2016-09-27:13:35:26.803] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.844] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(-1, -1))
  [2016-09-27:13:35:26.850] qtmir.surfaces: MirSurfaceItem::MirSurfaceItem
  [2016-09-27:13:35:26.857] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.858] qtmir.surfaces: 
MirSurfaceItem::setOrientationAngle(0)
  [2016-09-27:13:35:26.859] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:26.896] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(80, 56))
  [2016-09-27:13:35:26.902] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(320, 56))
  [2016-09-27:13:35:26.904] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(320, 376))
  [2016-09-27:13:35:26.907] unity.topsurfacelist: raiseId(id=1) - do it now.
  [2016-09-27:13:35:26.909] 
file:///usr/share/unity8//Stages/DesktopSpread.qml:467:33: Unable to assign 
[undefined] to QUrl
  [2016-09-27:13:35:26.911] qml: Calculating new usage mode. Pointer devices: 2 
current mode: Windowed old device count 1 root width: 160 height: 100
  [2016-09-27:13:35:26.912] qml: Calculating new usage mode. Pointer devices: 3 
current mode: Windowed old device count 2 root width: 160 height: 100
  [2016-09-27:13:35:26.955] APP_ID isn't set, the handler ignored
  [2016-09-27:13:35:26.979] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(320, 376))
  [2016-09-27:13:35:26.980] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(320, 376))
  [2016-09-27:13:35:27.017] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(-1, -1))
  [2016-09-27:13:35:27.017] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(-1, -1))
  [2016-09-27:13:35:27.036] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(-1, -1))
  [2016-09-27:13:35:27.037] qtmir.applications: 
Application["unity8-dash"]::setInitialSurfaceSize(size=QSize(-1, -1))
  [2016-09-27:13:35:27.068] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:27.070] QObject::disconnect: signal not found in 
LauncherModel
  [2016-09-27:13:35:27.071] QObject::disconnect: signal not found in 
LauncherModel
  [2016-09-27:13:35:27.071] QObject::disconnect: signal not found in 
LauncherModel
  [2016-09-27:13:35:27.072] QObject::disconnect: signal not found in 
LauncherModel
  [2016-09-27:13:35:27.072] QObject::disconnect: signal not found in 
LauncherModel
  [2016-09-27:13:35:27.073] QObject::disconnect: signal not found in 
LauncherModel
  [2016-09-27:13:35:27.628] [PERFORMANCE]: Last frame took 524 ms to render.
  [2016-09-27:13:35:27.651] unity.topsurfacelist: raiseId(id=1) - do it now.
  [2016-09-27:13:35:27.652] qtmir.sessions: SessionManager::onSessionStarting - 
sessionName= unity8-dash
  [2016-09-27:13:35:27.652] qtmir.surfaces: 
Session[0x5570d362e2a0,name="unity8-dash"]::Session()
  [2016-09-27:13:35:27.653] qtmir.applications: 
Application["unity8-dash"]::setSession(session=qtmir::Session(0x5570d362e2a0))
  [2016-09-27:13:35:27.654] qtmir.surfaces: 
Session[0x5570d362e2a0,name="unity8-dash"]::resume state=starting
  [2016-09-27:13:35:27.664] qtmir.surfaces: MirSurfaceItem::~MirSurfaceItem - 
this= qtmir::MirSurfaceItem(0x5570d36127a0, name="surfaceItem", parent=0x0, 
geometry=0,0 1280x776)
  [2016-09-27:13:35:27.665] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=QObject(0x0)
  [2016-09-27:13:35:27.806] qml: EdgeBarrierSettings: min=2gu(16px), 
max=60gu(480px), sensitivity=0.35, threshold=39.7gu(317.6px)
  [2016-09-27:13:35:27.814] [PERFORMANCE]: Last frame took 133 ms to render.
  [2016-09-27:13:35:27.937] 
file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/1.3/Icon.qml:115:5: 
QML Image: Failed to get image from provider: 
image://theme/indicator-keyboard-Pi
  [2016-09-27:13:35:28.636] [PERFORMANCE]: Last frame took 49 ms to render.
  [2016-09-27:13:35:28.819] 
file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/1.3/Icon.qml:115:5: 
QML Image: Cannot open: file:///home/git/.face
  [2016-09-27:13:35:28.828] 
file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/1.3/Icon.qml:115:5: 
QML Image: Cannot open: file:///home/liong/.face
  [2016-09-27:13:35:29.138] qtmir.applications: 
ApplicationManager::onSessionAboutToCreateSurface appId="unity8-dash"
  [2016-09-27:13:35:29.138] qtmir.mir: MirWindowManagerImpl::add_surface(): 
didn't get a initial surface size from shell. Falling back to fullscreen 
placement
  [2016-09-27:13:35:29.138] qtmir.mir: MirWindowManagerImpl::add_surface(): 
size requested ( 320 , 544 ) and placed ( 1280 , 800 )
  [2016-09-27:13:35:29.139] qtmir.mir: SessionListener::surface_created - this= 
SessionListener(0x7f5b6c204540) session= 0x7f5b4c001c60 surface= 0x7f5b4c5f9bf0
  [2016-09-27:13:35:29.140] qtmir.surfaces: 
MirSurfaceManager::onSessionCreatedSurface - mirSession= 0x7f5b4c001c60 
surface= 0x7f5b4c5f9bf0 surface.name= Scopes creationHints= 
"CreationHints(minW=320,minH=320,maxW=16777215,maxH=16777215,wIncr=0,hInc=0,shellChrome=normal)"
  [2016-09-27:13:35:29.142] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::MirSurface()
  [2016-09-27:13:35:29.143] qtmir.surfaces: 
Session[0x5570d362e2a0,name="unity8-dash"]::registerSurface(surface=qtmir::MirSurface(0x5570d3750f60))
  [2016-09-27:13:35:29.368] qtmir.surfaces: 
Session[0x5570d362e2a0,name="unity8-dash"]::prependSurface(surface=qtmir::MirSurface(0x5570d3750f60))
  [2016-09-27:13:35:29.369] unity.topsurfacelist: appendSurface 
appId=unity8-dash surface=qtmir::MirSurface(0x5570d3750f60), filling out 
placeholder. after: (index=0,appId=unity8-dash,surface=0x5570d3750f60,id=1)
  [2016-09-27:13:35:29.370] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=qtmir::MirSurface(0x5570d3750f60)
  [2016-09-27:13:35:29.371] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::registerView(93943069350384) after=1
  [2016-09-27:13:35:29.371] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::updateVisibility(true)
  [2016-09-27:13:35:29.372] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::onAttributeChanged visible = true
  [2016-09-27:13:35:29.373] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::setScreenmoved toQPoint(0,0)px
  [2016-09-27:13:35:29.374] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::updateActiveFocus() unfocused
  [2016-09-27:13:35:29.376] qtmir.surfaces: MirSurfaceItem::setSurface 
surface=qtmir::MirSurface(0x5570d3750f60)
  [2016-09-27:13:35:29.377] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::registerView(93943067488208) after=2
  [2016-09-27:13:35:29.379] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::resize old (1280,800), new (320,376)
  [2016-09-27:13:35:29.380] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::setScreenmoved toQPoint(0,0)px
  [2016-09-27:13:35:29.381] qtmir.surfaces: 
MirFocusController::setFocusedSurface(qtmir::MirSurface(0x5570d3750f60))
  [2016-09-27:13:35:29.381] unity.topsurfacelist: 
raise(MirSurface[0x5570d3750f60])
  [2016-09-27:13:35:29.382] unity.topsurfacelist: raiseId(id=1) - do it now.
  [2016-09-27:13:35:29.382] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::raise()
  [2016-09-27:13:35:29.383] qtmir.surfaces: 
MirSurface[0x5570d3750f60,"unity8-dash"]::setKeymap("pinyin")
  xkbcommon: ERROR: Couldn't find file "symbols/pinyin" in include paths
  xkbcommon: ERROR: 1 include paths searched:
  xkbcommon: ERROR:     /usr/share/X11/xkb
  xkbcommon: ERROR: 1 include paths could not be added:
  xkbcommon: ERROR:     /home/liong/.xkb
  xkbcommon: ERROR: Abandoning symbols file "(unnamed)"
  xkbcommon: ERROR: Failed to compile xkb_symbols
  xkbcommon: ERROR: Failed to compile keymap
  terminate called after throwing an instance of 
'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::runtime_error>
 >'
    what():  failed to assemble keymap from given parameters

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