Bug 426078

Summary: transparent controlpanel and menus after standy
Product: [Plasma] kwin Reporter: Richard Knausenberger <liemaeu>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: crash CC: kde.org
Priority: NOR Keywords: drkonqi
Version: 5.12.9   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Richard Knausenberger 2020-09-01 21:11:43 UTC 
Application: kwin_x11 (5.12.9)

Qt Version: 5.9.5
Frameworks Version: 5.47.0
Operating System: Linux 5.4.0-42-generic x86_64
Distribution: Ubuntu 18.04.5 LTS

-- Information about the crash:
- Unusual behavior I noticed:
After waking up from standby the control panels and menus are transparent sometimes. I can fix this by loging out and in again.
I use the standard Kubuntu Breeze theme and I disabled transparency in the Plasma settings.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f20abe51cc0 (LWP 9189))]

Thread 8 (Thread 0x7f1fdce30700 (LWP 27982)):
#0  0x00007f20a481e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f208c019330) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f20a481e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f208c0192e0, cond=0x7f208c019308) at pthread_cond_wait.c:502
#2  0x00007f20a481e9f3 in __pthread_cond_wait (cond=0x7f208c019308, mutex=0x7f208c0192e0) at pthread_cond_wait.c:655
#3  0x00007f20a898d5ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20a39f26a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f20a39f2b0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f20a898c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f20a48186db in start_thread (arg=0x7f1fdce30700) at pthread_create.c:463
#8  0x00007f20ab7cba3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f2073fff700 (LWP 27981)):
#0  0x00007f20ab7bedf6 in __GI_ppoll (fds=0x7f206c0058e8, nfds=1, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f20a8bbf561 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f20a8bc0c7e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f20a8b6890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20a898723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f20a33046f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f20a898c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f20a48186db in start_thread (arg=0x7f2073fff700) at pthread_create.c:463
#8  0x00007f20ab7cba3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f208a168700 (LWP 25874)):
#0  0x00007f20a481e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558df8061f04) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f20a481e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x558df8061eb0, cond=0x558df8061ed8) at pthread_cond_wait.c:502
#2  0x00007f20a481e9f3 in __pthread_cond_wait (cond=0x558df8061ed8, mutex=0x558df8061eb0) at pthread_cond_wait.c:655
#3  0x00007f20a898d5ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20a39f26a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f20a39f2b0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f20a898c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f20a48186db in start_thread (arg=0x7f208a168700) at pthread_create.c:463
#8  0x00007f20ab7cba3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f207b7ff700 (LWP 11444)):
#0  0x00007f20ab7bedf6 in __GI_ppoll (fds=0x558df7db24f8, nfds=1, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f20a8bbf561 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f20a8bc0c7e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f20a8b6890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20a898723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f20a898c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f20a48186db in start_thread (arg=0x7f207b7ff700) at pthread_create.c:463
#7  0x00007f20ab7cba3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f207282a700 (LWP 9363)):
#0  0x00007f20a481e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f20a7dc0fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f20a481e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f20a7dc0f68, cond=0x7f20a7dc0f90) at pthread_cond_wait.c:502
#2  0x00007f20a481e9f3 in __pthread_cond_wait (cond=0x7f20a7dc0f90, mutex=0x7f20a7dc0f68) at pthread_cond_wait.c:655
#3  0x00007f20a7aca5f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f20a7aca639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f20a48186db in start_thread (arg=0x7f207282a700) at pthread_create.c:463
#6  0x00007f20ab7cba3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f20893f2700 (LWP 9347)):
#0  0x00007f20ab7bedf6 in __GI_ppoll (fds=0x7f2080000d28, nfds=1, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f20a8bbf561 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f20a8bc0c7e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f20a8b6890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20a898723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f20a33046f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f20a898c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f20a48186db in start_thread (arg=0x7f20893f2700) at pthread_create.c:463
#8  0x00007f20ab7cba3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f208bdf5700 (LWP 9284)):
#0  0x00007f20ab7bedf6 in __GI_ppoll (fds=0x7f208400ed48, nfds=1, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f20a8bbf561 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f20a8bc0c7e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f20a8b6890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f20a898723a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f20a21d4d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#6  0x00007f20a898c17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f20a48186db in start_thread (arg=0x7f208bdf5700) at pthread_create.c:463
#8  0x00007f20ab7cba3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f20abe51cc0 (LWP 9189)):
[KCrash Handler]
#6  0x00007f20a80d306e in  () at /usr/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#7  0x00007f20a80d3144 in  () at /usr/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#8  0x00007f20a80d46a5 in  () at /usr/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#9  0x00007f20a80d509b in  () at /usr/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#10 0x00007f20ab32d91e in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#11 0x00007f20a80443cd in  () at /usr/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#12 0x00007f20ab32d91e in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#13 0x00007f20ab319890 in KWin::Scene::finalPaintWindow(KWin::EffectWindowImpl*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#14 0x00007f20ab32d7ad in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#15 0x00007f20a80c430a in  () at /usr/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#16 0x00007f20ab32d74e in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#17 0x00007f20a83334b0 in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.11
#18 0x00007f20ab32d74e in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#19 0x00007f20a83334b0 in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.11
#20 0x00007f20ab32d74e in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#21 0x00007f20ab31fc02 in KWin::Scene::paintWindow(KWin::Scene::Window*, int, QRegion, KWin::WindowQuadList) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#22 0x00007f20ab31e97c in KWin::Scene::paintSimpleScreen(int, QRegion) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#23 0x00007f20885d8c92 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#24 0x00007f20ab31f197 in KWin::Scene::finalPaintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#25 0x00007f20ab32d505 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#26 0x00007f20a8333401 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.11
#27 0x00007f20ab32d4ad in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#28 0x00007f20a8333401 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.11
#29 0x00007f20ab32d4ad in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#30 0x00007f20a8333401 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.11
#31 0x00007f20ab32d4ad in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#32 0x00007f20ab31ee8e in KWin::Scene::paintScreen(int*, QRegion const&, QRegion const&, QRegion*, QRegion*, QMatrix4x4 const&, QRect const&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#33 0x00007f20885de541 in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () at /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#34 0x00007f20ab311412 in KWin::Compositor::performCompositing() () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#35 0x00007f20a8b9a07b in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007f20a98e883c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f20a98f0104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007f20a8b6a8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f20a8bc2d2e in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f20a8bc0ee2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007f20933af66d in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#42 0x00007f20a8b6890a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007f20a8b719b4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f20abaa3dbb in kdemain () at /usr/lib/x86_64-linux-gnu/libkdeinit5_kwin_x11.so
#45 0x00007f20ab6cbb97 in __libc_start_main (main=0x558df5e48730, argc=1, argv=0x7ffc5dfa80e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc5dfa80d8) at ../csu/libc-start.c:310
#46 0x0000558df5e4876a in _start ()

Reported using DrKonqi
Comment 1 kde.org 2021-11-04 20:49:42 UTC 
This bug report is quite old and lacks proper debug information. Can you still reproduce this issue with KDE 5.23? If so, can you please install debugging packages following the info provided in  https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports, try to reproduce the bug and submit a backtrace with debugging information.
Comment 2 kde.org 2021-11-04 20:51:13 UTC 
Waiting for information
Comment 3 Bug Janitor Service 2021-11-19 04:39:03 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Bug Janitor Service 2021-12-04 04:38:49 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!