https://bugs.kde.org/show_bug.cgi?id=366742
--- Comment #7 from Tony <jodr...@live.com> --- For that bactrace no i did not. But it happens in any case compositing on/off, the only difference is that when off i does not happen right away i need to move the windows around, click on them or wait a little with them open. This is a backtrace i get with compositing off: #0 0x00007f8669d60c74 in QXcbConnection::checkEvent<(anonymous namespace)::PropertyNotifyEvent> (this=0x23a64c0, checker=<synthetic pointer>) at qxcbconnection.h:695 #1 QXcbConnection::getTimestamp (this=0x23a64c0) at qxcbconnection.cpp:1467 #2 0x00007f8669d812b2 in QXcbNativeInterface::getTimestamp (this=this@entry=0x239ee10, screen=screen@entry=0x23b8c80) at qxcbnativeinterface.cpp:413 #3 0x00007f8669d82242 in QXcbNativeInterface::nativeResourceForScreen (this=0x239ee10, resourceString=..., screen=0x23b8420) at qxcbnativeinterface.cpp:243 #4 0x00007f86803a6c90 in QX11Info::getTimestamp() () from /usr/lib/x86_64-linux-gnu/libQt5X11Extras.so.5 #5 0x00007f867f7f7dd9 in KWin::updateXTime () at /workspace/build/utils.cpp:87 #6 0x00007f867f827355 in KWin::Client::updateUserTime (this=0x2753740, time=time@entry=0) at /workspace/build/activation.cpp:706 #7 0x00007f867f828472 in KWin::Workspace::activateClient (this=0x24812b0, c=0x2753740, force=<optimized out>) at /workspace/build/activation.cpp:330 #8 0x00007f867e97a0dc in NETRootInfo::event(xcb_generic_event_t*, QFlags<NET::Property>*, QFlags<NET::Property2>*) () from /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5 #9 0x00007f867f80d946 in KWin::Workspace::workspaceEvent (this=0x24812b0, e=0x7f86653a00f0) at /workspace/build/events.cpp:265 #10 0x00007f867db50f0f in QAbstractEventDispatcher::filterNativeEvent (this=<optimized out>, eventType=..., message=message@entry=0x7f86653a00f0, result=result@entry=0x7fff9943a698) at kernel/qabstracteventdispatcher.cpp:466 #11 0x00007f8669d64684 in QXcbConnection::handleXcbEvent (this=this@entry=0x23a64c0, event=event@entry=0x7f86653a00f0) at qxcbconnection.cpp:1103 #12 0x00007f8669d65300 in QXcbConnection::processXcbEvents (this=0x23a64c0) at qxcbconnection.cpp:1735 #13 0x00007f867db7fad9 in QObject::event (this=0x23a64c0, e=<optimized out>) at kernel/qobject.cpp:1263 #14 0x00007f867e43f89c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x23a64c0, e=0x7f8665022110) at kernel/qapplication.cpp:3799 #15 0x00007f867e447296 in QApplication::notify (this=0x7fff9943ad50, receiver=0x23a64c0, e=0x7f8665022110) at kernel/qapplication.cpp:3556 #16 0x00007f867db53da8 in QCoreApplication::notifyInternal2 (receiver=0x23a64c0, event=event@entry=0x7f8665022110) at kernel/qcoreapplication.cpp:988 #17 0x00007f867db5646b in QCoreApplication::sendEvent (event=0x7f8665022110, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231 #18 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x238cd30) at kernel/qcoreapplication.cpp:1649 #19 0x00007f867dba3dea in QEventDispatcherUNIX::processEvents (this=0x23e5f20, flags=flags@entry=...) at kernel/qeventdispatcher_unix.cpp:461 #20 0x00007f8669dd887d in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:68 #21 0x00007f867db51d9a in QEventLoop::exec (this=this@entry=0x7fff9943ac40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210 #22 0x00007f867db5a3ac in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1261 #23 0x00007f867de9cdbc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1639 #24 0x00007f867e43f7f5 in QApplication::exec () at kernel/qapplication.cpp:2975 #25 0x00007f867ffae206 in kdemain (argc=1, argv=0x7fff9943aed8) at /workspace/build/main_x11.cpp:466 #26 0x00007f867fbf5830 in __libc_start_main (main=0x400710 <main(int, char**)>, argc=1, argv=0x7fff9943aed8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff9943aec8) at ../csu/libc-start.c:291 #27 0x0000000000400749 in _start () Detaching from program: /usr/bin/kwin_x11, process 3126 -- You are receiving this mail because: You are watching all bug changes.