For completeness sake, here's mine on Latitude D630 (Intel 965GM
graphics), also inside qglxintegration.cpp but slightly different.
Program received signal SIGSEGV, Segmentation fault.
0x00007fffee0aa81c in QGLXContext::swapBuffers (this=0x81d790,
surface=0x638450) at qglxintegration.cpp:392
(gdb) bt
#0 0x00007fffee0aa81c in QGLXContext::swapBuffers (this=0x81d790,
surface=0x638450) at qglxintegration.cpp:392
#1 0x00007ffff641cd92 in QOpenGLContext::swapBuffers (this=0x6c6b60,
surface=<optimized out>) at kernel/qopenglcontext.cpp:906
#2 0x00007ffff7990a8c in QSGGuiThreadRenderLoop::renderWindow (
this=this@entry=0xb44110, window=0x7943c0)
at scenegraph/qsgrenderloop.cpp:381
#3 0x00007ffff7990f1e in QSGGuiThreadRenderLoop::exposureChanged (
this=0xb44110, window=0x7943c0) at scenegraph/qsgrenderloop.cpp:414
#4 0x00007ffff63e4769 in QWindow::event (this=this@entry=0x7943c0,
ev=ev@entry=0x7fffffffd8a0) at kernel/qwindow.cpp:1956
#5 0x00007ffff79bad73 in QQuickWindow::event (this=0x7943c0, e=0x7fffffffd8a0)
at items/qquickwindow.cpp:1339
#6 0x00007ffff6b3a6dc in QApplicationPrivate::notify_helper (
this=this@entry=0x616560, receiver=receiver@entry=0x7943c0,
e=e@entry=0x7fffffffd8a0) at kernel/qapplication.cpp:3504
#7 0x00007ffff6b3f456 in QApplication::notify (this=0x7fffffffddc0,
receiver=0x7943c0, e=0x7fffffffd8a0) at kernel/qapplication.cpp:3287
#8 0x00007ffff5e999d5 in QCoreApplication::notifyInternal (this=
0x7fffffffddc0, receiver=receiver@entry=0x7943c0,
event=event@entry=0x7fffffffd8a0) at kernel/qcoreapplication.cpp:935
#9 0x00007ffff63ddee6 in sendSpontaneousEvent (event=0x7fffffffd8a0,
receiver=0x7943c0)
at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:240
#10 QGuiApplicationPrivate::processExposeEvent (e=0x62f080)
at kernel/qguiapplication.cpp:2528
#11 0x00007ffff63dea45 in QGuiApplicationPrivate::processWindowSystemEvent (
e=e@entry=0x62f080) at kernel/qguiapplication.cpp:1566
#12 0x00007ffff63c54d8 in QWindowSystemInterface::sendWindowSystemEvents (
flags=...) at kernel/qwindowsysteminterface.cpp:579
#13 0x00007fffee0ad000 in userEventSourceDispatch (source=<optimized out>)
at eventdispatchers/qeventdispatcher_glib.cpp:78
#14 0x00007ffff4512de4 in g_main_context_dispatch ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007ffff4513028 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007ffff45130cc in g_main_context_iteration ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007ffff5ef06bc in QEventDispatcherGlib::processEvents (this=0x6ece20,
flags=...) at kernel/qeventdispatcher_glib.cpp:426
#18 0x00007ffff5e978eb in QEventLoop::exec (this=this@entry=0x7fffffffdb60,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#19 0x00007ffff5e9ef46 in QCoreApplication::exec ()
at kernel/qcoreapplication.cpp:1188
#20 0x00007ffff63d60cc in QGuiApplication::exec ()
at kernel/qguiapplication.cpp:1436
#21 0x00007ffff6b38e05 in QApplication::exec () at kernel/qapplication.cpp:2749
#22 0x0000000000404301 in main (argc=2, argv=<optimized out>) at main.cpp:548
I also added one more patch to the qt5-beta1 PPA's qtbase:
https://qt.gitorious.org/qt/qtbase/commit/075c36e39beedb33ec4b239d57075f54acb21acf
Since Maarten experienced a trace that also concerned qtdeclarative (Qt
Quick), it's worth mentioning there's an updated 5.3 branch snapshot
build of qtdeclarative (made compatible with 5.3.0) soon finished
building at: https://launchpad.net/~canonical-
qt5-edgers/+archive/ubuntu/qt5-proper
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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
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