I have the problem that the control panel regularly disappears. Sometimes it comes back on its own, sometimes I have to restart the Plasmashell process via console. In the first case, I occasionally (not always) see the icon for a crash report. However, it tells me that it is probably unusable because some debug libraries are missing. I gave up trying to install them because I couldn't find most of them in the Debian repo. STEPS TO REPRODUCE The problem usually occurs after changing the monitor setup, I often switch between different docking stations. However, it doesn't happen right after the change, but mostly after I've been working for a while. OBSERVED RESULT Plasmahell crashes EXPECTED RESULT Plasmahell does not crash SOFTWARE/OS VERSIONS Betriebssystem: Debian GNU/Linux 11 KDE-Plasma-Version: 5.20.5 KDE-Frameworks-Version: 5.78.0 Qt-Version: 5.15.2 Kernel-Version: 5.10.0-9-amd64 Art des Betriebssystems: 64-bit Prozessoren: 12 × Intel® Core™ i7-9850H CPU @ 2.60GHz Speicher: 31,2 GiB Arbeitsspeicher Grafikprozessor: Quadro T2000/PCIe/SSE2
Here is the text of the last crash report: Application: KWin (kwin_x11), signal: Segmentation fault [KCrash Handler] #4 0x00007ff1e94e12c8 in QXcbIntegration::createPlatformOpenGLContext(QOpenGLContext*) const () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #5 0x00007ff1efe7105d in QOpenGLContext::create() () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #6 0x00007ff1ee4393f4 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007ff1ee43b3e7 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #8 0x00007ff1ee43c0b7 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #9 0x00007ff1ef86fbe1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007ff1eeb34ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477 #11 0x00007ff1ef4e1def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7ff1d8f08700 (LWP 10933) "FreezeDetector"): #1 0x00007ff1efaa4589 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ff1efaa5c23 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ff1efa4f98b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ff1ef86ea9e in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ff1ef86fbe1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ff1eeb34ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477 #7 0x00007ff1ef4e1def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7ff1da1f2700 (LWP 10919) "kwin_x11"): #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7ff1ef2c7f88, cond=0x7ff1ef2c7fb0) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7ff1ef2c7fb0, mutex=0x7ff1ef2c7f88) at pthread_cond_wait.c:638 #3 0x00007ff1ef1d48fc in ?? () from /lib/x86_64-linux-gnu/libQt5Script.so.5 #4 0x00007ff1ef1d4929 in ?? () from /lib/x86_64-linux-gnu/libQt5Script.so.5 #5 0x00007ff1eeb34ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007ff1ef4e1def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7ff1db433700 (LWP 10820) "QQmlThread"): #1 0x00007ff1efaa4589 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ff1efaa5c23 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ff1efa4f98b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ff1ef86ea9e in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ff1ee0e9f85 in QQmlThreadPrivate::run (this=0x564aea4be8f0) at qml/ftw/qqmlthread.cpp:155 #6 0x00007ff1ef86fbe1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007ff1eeb34ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477 #8 0x00007ff1ef4e1def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7ff1e3fff700 (LWP 10766) "QDBusConnection"): #1 0x00007ff1efaa4589 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x00007ff1efaa5c23 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007ff1efa4f98b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ff1ef86ea9e in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007ff1f0b46a27 in QDBusConnectionManager::run (this=0x7ff1f0bb3d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179 #6 0x00007ff1ef86fbe1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007ff1eeb34ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477 #8 0x00007ff1ef4e1def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7ff1e99118c0 (LWP 10764) "kwin_x11"): #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x564aeb318d10, cond=0x564aeb318d38) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x564aeb318d38, mutex=0x564aeb318d10) at pthread_cond_wait.c:638 #3 0x00007ff1ef875b5b in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007ff1ee43d8aa in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #5 0x00007ff1ee43ea72 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #6 0x00007ff1efe377e5 in QWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #7 0x00007ff1f051315f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #8 0x00007ff1efa50fca in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007ff1efe2c9bd in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #10 0x00007ff1efe0164c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #11 0x00007ff1e9501b93 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #12 0x00007ff1efa4f98b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #13 0x00007ff1efa57c00 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #14 0x0000564ae9ccaf59 in ?? () #15 0x00007ff1ef40ad0a in __libc_start_main (main=0x564ae9ccab90, argc=1, argv=0x7ffeacccf428, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffeacccf418) at ../csu/libc-start.c:308 #16 0x0000564ae9ccb45a in _start () [Inferior 1 (process 10764) detached]
*** This bug has been marked as a duplicate of bug 414805 ***