KWin crashed, the backtrace suggests an imbalance in the shader un/loading (apparently in the contrast effect, but the imbalance could have been caused before)

This however might be a red herring: if plasmashell crashed as well (instead of just moving it to some specific virtual desktop), there might be a problem deeper down the stack.

Can you reproduce this? (Or did you maybe check the process list when this happened?)

I got similar stacktrace when I restarted kded5 process and it turn off my external monitor (keep just notebook display).

I have Kubuntu 16.10
kwin 5.7.5
Qt 5.6.1 
Intel graphics card

Backtrace k pádu, na který jsem narazil/a:

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 0x7fa275910940 (LWP 4388))]

Thread 8 (Thread 0x7fa1d8bff700 (LWP 14354)):
#0  0x00007fa28c3d2ea3 in select () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fa28a254caf in qt_safe_select (nfds=21, fdread=fdread@entry=0x7fa1c8000a58, fdwrite=fdwrite@entry=0x7fa1c8000ce8, fdexcept=fdexcept@entry=0x7fa1c8000f78, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007fa28a256754 in QEventDispatcherUNIX::select (timeout=0x0, exceptfds=0x7fa1c8000f78, writefds=0x7fa1c8000ce8, readfds=0x7fa1c8000a58, nfds=<optimized out>, this=0x7fa1c80b00b0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7fa1c80008c0, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007fa28a256c6a in QEventDispatcherUNIX::processEvents (this=0x7fa1c80b00b0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007fa28a2010fa in QEventLoop::exec (this=this@entry=0x7fa1d8bfec60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fa28a026d43 in QThread::exec (this=this@entry=0x559902cdb170) at thread/qthread.cpp:500
#7  0x00007fa284ad7c65 in QQmlThreadPrivate::run (this=0x559902cdb170) at qml/ftw/qqmlthread.cpp:141
#8  0x00007fa28a02bc68 in QThreadPrivate::start (arg=0x559902cdb170) at thread/qthread_unix.cpp:341
#9  0x00007fa28597970a in start_thread (arg=0x7fa1d8bff700) at pthread_create.c:333
#10 0x00007fa28c3dd0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7fa25bfff700 (LWP 9779)):
#0  0x00007fa28c3d2ea3 in select () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fa28a254caf in qt_safe_select (nfds=17, fdread=fdread@entry=0x7fa1d4000a78, fdwrite=fdwrite@entry=0x7fa1d4000d08, fdexcept=fdexcept@entry=0x7fa1d4000f98, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007fa28a256754 in QEventDispatcherUNIX::select (timeout=0x0, exceptfds=0x7fa1d4000f98, writefds=0x7fa1d4000d08, readfds=0x7fa1d4000a78, nfds=<optimized out>, this=0x7fa1d40008c0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7fa1d40008e0, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007fa28a256c6a in QEventDispatcherUNIX::processEvents (this=0x7fa1d40008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007fa28a2010fa in QEventLoop::exec (this=this@entry=0x7fa25bffec60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fa28a026d43 in QThread::exec (this=this@entry=0x55990577fb10) at thread/qthread.cpp:500
#7  0x00007fa284ad7c65 in QQmlThreadPrivate::run (this=0x55990577fb10) at qml/ftw/qqmlthread.cpp:141
#8  0x00007fa28a02bc68 in QThreadPrivate::start (arg=0x55990577fb10) at thread/qthread_unix.cpp:341
#9  0x00007fa28597970a in start_thread (arg=0x7fa25bfff700) at pthread_create.c:333
#10 0x00007fa28c3dd0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7fa264e28700 (LWP 9778)):
#0  0x00007fa28c3d2ea3 in select () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fa28a254caf in qt_safe_select (nfds=16, fdread=fdread@entry=0x7fa1cc01eff8, fdwrite=fdwrite@entry=0x7fa1cc01f288, fdexcept=fdexcept@entry=0x7fa1cc01f518, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007fa28a256754 in QEventDispatcherUNIX::select (timeout=0x0, exceptfds=0x7fa1cc01f518, writefds=0x7fa1cc01f288, readfds=0x7fa1cc01eff8, nfds=<optimized out>, this=0x7fa1cc0008c0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7fa1cc01ee60, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007fa28a256c6a in QEventDispatcherUNIX::processEvents (this=0x7fa1cc0008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007fa28a2010fa in QEventLoop::exec (this=this@entry=0x7fa264e27c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fa28a026d43 in QThread::exec (this=this@entry=0x559903864120) at thread/qthread.cpp:500
#7  0x00007fa284ad7c65 in QQmlThreadPrivate::run (this=0x559903864120) at qml/ftw/qqmlthread.cpp:141
#8  0x00007fa28a02bc68 in QThreadPrivate::start (arg=0x559903864120) at thread/qthread_unix.cpp:341
#9  0x00007fa28597970a in start_thread (arg=0x7fa264e28700) at pthread_create.c:333
#10 0x00007fa28c3dd0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7fa26d44b700 (LWP 5964)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:67
#1  0x00007fa28c3d2e95 in select () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007fa28a254caf in qt_safe_select (nfds=13, fdread=fdread@entry=0x7fa260000a78, fdwrite=fdwrite@entry=0x7fa260000d08, fdexcept=fdexcept@entry=0x7fa260000f98, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#3  0x00007fa28a256754 in QEventDispatcherUNIX::select (timeout=0x0, exceptfds=0x7fa260000f98, writefds=0x7fa260000d08, readfds=0x7fa260000a78, nfds=<optimized out>, this=0x7fa2600008c0) at kernel/qeventdispatcher_unix.cpp:320
#4  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7fa2600008e0, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#5  0x00007fa28a256c6a in QEventDispatcherUNIX::processEvents (this=0x7fa2600008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#6  0x00007fa28a2010fa in QEventLoop::exec (this=this@entry=0x7fa26d44ac60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fa28a026d43 in QThread::exec (this=this@entry=0x55990274b6e0) at thread/qthread.cpp:500
#8  0x00007fa284ad7c65 in QQmlThreadPrivate::run (this=0x55990274b6e0) at qml/ftw/qqmlthread.cpp:141
#9  0x00007fa28a02bc68 in QThreadPrivate::start (arg=0x55990274b6e0) at thread/qthread_unix.cpp:341
#10 0x00007fa28597970a in start_thread (arg=0x7fa26d44b700) at pthread_create.c:333
#11 0x00007fa28c3dd0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7fa25b7fe700 (LWP 4450)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa2893c0574 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fa2893c05b9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fa28597970a in start_thread (arg=0x7fa25b7fe700) at pthread_create.c:333
#4  0x00007fa28c3dd0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7fa267fff700 (LWP 4434)):
#0  0x00007fa28c3d2ea3 in select () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fa28a254caf in qt_safe_select (nfds=14, fdread=fdread@entry=0x7fa25c000a78, fdwrite=fdwrite@entry=0x7fa25c000d08, fdexcept=fdexcept@entry=0x7fa25c000f98, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007fa28a256754 in QEventDispatcherUNIX::select (timeout=0x0, exceptfds=0x7fa25c000f98, writefds=0x7fa25c000d08, readfds=0x7fa25c000a78, nfds=<optimized out>, this=0x7fa25c0008c0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7fa25c0008e0, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007fa28a256c6a in QEventDispatcherUNIX::processEvents (this=0x7fa25c0008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007fa28a2010fa in QEventLoop::exec (this=this@entry=0x7fa267ffec60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fa28a026d43 in QThread::exec (this=this@entry=0x559901b89fa0) at thread/qthread.cpp:500
#7  0x00007fa284ad7c65 in QQmlThreadPrivate::run (this=0x559901b89fa0) at qml/ftw/qqmlthread.cpp:141
#8  0x00007fa28a02bc68 in QThreadPrivate::start (arg=0x559901b89fa0) at thread/qthread_unix.cpp:341
#9  0x00007fa28597970a in start_thread (arg=0x7fa267fff700) at pthread_create.c:333
#10 0x00007fa28c3dd0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7fa27590c700 (LWP 4399)):
#0  0x00007fa28c3d10bd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fa282eda9d6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa282edaaec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa28a2594ab in QEventDispatcherGlib::processEvents (this=0x7fa2700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007fa28a2010fa in QEventLoop::exec (this=this@entry=0x7fa27590bc50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fa28a026d43 in QThread::exec (this=this@entry=0x7fa28ca4ad60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#6  0x00007fa28c9d6575 in QDBusConnectionManager::run (this=0x7fa28ca4ad60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:171
#7  0x00007fa28a02bc68 in QThreadPrivate::start (arg=0x7fa28ca4ad60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#8  0x00007fa28597970a in start_thread (arg=0x7fa27590c700) at pthread_create.c:333
#9  0x00007fa28c3dd0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7fa275910940 (LWP 4388)):
[KCrash Handler]
#6  KWin::GLShader::resolveLocations (this=0x0) at ./libkwineffects/kwinglutils.cpp:420
#7  0x00007fa28551d1e2 in KWin::GLShader::setUniform (this=0x0, uniform=uniform@entry=KWin::GLShader::Color, value=...) at ./libkwineffects/kwinglutils.cpp:481
#8  0x00007fa28551ee6b in KWin::GLVertexBufferPrivate::bindArrays (this=0x559901dcc1b0) at ./libkwineffects/kwinglutils.cpp:1883
#9  0x00007fa28551fa98 in KWin::GLVertexBuffer::bindArrays (this=this@entry=0x559901dcc190) at ./libkwineffects/kwinglutils.cpp:2170
#10 0x00007fa289574a76 in KWin::ContrastEffect::doContrast (this=this@entry=0x559904d77f90, shape=..., screen=..., opacity=1) at ./effects/backgroundcontrast/contrast.cpp:419
#11 0x00007fa289575326 in KWin::ContrastEffect::drawWindow (this=this@entry=0x559904d77f90, w=w@entry=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./effects/backgroundcontrast/contrast.cpp:397
#12 0x00007fa28bf996be in KWin::EffectsHandlerImpl::drawWindow (this=0x5599024051e0, w=w@entry=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:506
#13 0x00007fa2894f4882 in KWin::BlurEffect::drawWindow (this=this@entry=0x55990241e440, w=w@entry=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./effects/blur/blur.cpp:473
#14 0x00007fa28bf996be in KWin::EffectsHandlerImpl::drawWindow (this=0x5599024051e0, w=w@entry=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:506
#15 0x00007fa28bf6a241 in KWin::Scene::finalPaintWindow (this=<optimized out>, w=w@entry=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./scene.cpp:607
#16 0x00007fa28bf9956a in KWin::EffectsHandlerImpl::paintWindow (this=0x5599024051e0, w=w@entry=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:472
#17 0x00007fa2899d5151 in KWin::Effect::paintWindow (this=this@entry=0x559904d77f90, w=w@entry=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./libkwineffects/kwineffects.cpp:589
#18 0x00007fa28bf9950e in KWin::EffectsHandlerImpl::paintWindow (this=0x5599024051e0, w=w@entry=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:469
#19 0x00007fa2899d5151 in KWin::Effect::paintWindow (this=this@entry=0x55990241e440, w=w@entry=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./libkwineffects/kwineffects.cpp:589
#20 0x00007fa28bf9950e in KWin::EffectsHandlerImpl::paintWindow (this=0x5599024051e0, w=0x5599038f1320, mask=mask@entry=10, region=..., data=...) at ./effects.cpp:469
#21 0x00007fa28bf70ad7 in KWin::Scene::paintWindow (this=this@entry=0x559901dcc520, w=0x559909ab3640, mask=10, region=..., quads=...) at ./scene.cpp:479
#22 0x00007fa28bf6f80e in KWin::Scene::paintSimpleScreen (this=this@entry=0x559901dcc520, orig_mask=orig_mask@entry=8, region=...) at ./scene.cpp:382
#23 0x00007fa28bf817f3 in KWin::SceneOpenGL2::paintSimpleScreen (this=this@entry=0x559901dcc520, mask=mask@entry=8, region=...) at ./scene_opengl.cpp:1078
#24 0x00007fa28bf70014 in KWin::Scene::finalPaintScreen (this=0x559901dcc520, mask=mask@entry=8, region=..., data=...) at ./scene.cpp:201
#25 0x00007fa28bf992ef in KWin::EffectsHandlerImpl::paintScreen (this=0x5599024051e0, mask=mask@entry=8, region=..., data=...) at ./effects.cpp:429
#26 0x00007fa2899d509f in KWin::Effect::paintScreen (this=this@entry=0x559904d77f90, mask=mask@entry=8, region=..., data=...) at ./libkwineffects/kwineffects.cpp:574
#27 0x00007fa28bf9929a in KWin::EffectsHandlerImpl::paintScreen (this=0x5599024051e0, mask=mask@entry=8, region=..., data=...) at ./effects.cpp:426
#28 0x00007fa2899d509f in KWin::Effect::paintScreen (this=this@entry=0x55990241e440, mask=mask@entry=8, region=..., data=...) at ./libkwineffects/kwineffects.cpp:574
#29 0x00007fa28bf9929a in KWin::EffectsHandlerImpl::paintScreen (this=0x5599024051e0, mask=8, region=..., data=...) at ./effects.cpp:426
#30 0x00007fa28bf6fc9d in KWin::Scene::paintScreen (this=this@entry=0x559901dcc520, mask=mask@entry=0x7fff30ee8d10, damage=..., repaint=..., updateRegion=updateRegion@entry=0x7fff30ee8ce0, validRegion=validRegion@entry=0x7fff30ee8cf0, projection=...) at ./scene.cpp:151
#31 0x00007fa28bf87c06 in KWin::SceneOpenGL::paint (this=0x559901dcc520, damage=..., toplevels=...) at ./scene_opengl.cpp:731
#32 0x00007fa28bf6281a in KWin::Compositor::performCompositing (this=0x559901a8ab50) at ./composite.cpp:720
#33 0x00007fa28a231653 in QObject::event (this=0x559901a8ab50, e=<optimized out>) at kernel/qobject.cpp:1278
#34 0x00007fa28ab3e8ac in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x559901a8ab50, e=0x7fff30ee9160) at kernel/qapplication.cpp:3804
#35 0x00007fa28ab43d4f in QApplication::notify (this=0x7fff30ee93d0, receiver=0x559901a8ab50, e=0x7fff30ee9160) at kernel/qapplication.cpp:3561
#36 0x00007fa28a2033b0 in QCoreApplication::notifyInternal2 (receiver=0x559901a8ab50, event=event@entry=0x7fff30ee9160) at kernel/qcoreapplication.cpp:1015
#37 0x00007fa28a2583ae in QCoreApplication::sendEvent (event=0x7fff30ee9160, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#38 QTimerInfoList::activateTimers (this=0x5599019e4348) at kernel/qtimerinfo_unix.cpp:637
#39 0x00007fa28a256140 in QEventDispatcherUNIX::activateTimers (this=this@entry=0x5599019d03f0) at kernel/qeventdispatcher_unix.cpp:549
#40 0x00007fa28a256c3b in QEventDispatcherUNIX::processEvents (this=0x5599019d03f0, flags=...) at kernel/qeventdispatcher_unix.cpp:611
#41 0x00007fa274d8294d in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:62
#42 0x00007fa28a2010fa in QEventLoop::exec (this=this@entry=0x7fff30ee92c0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#43 0x00007fa28a20990c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#44 0x00007fa28a54da7c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1602
#45 0x00007fa28ab3b8e5 in QApplication::exec () at kernel/qapplication.cpp:2979
#46 0x00007fa28c6a5206 in kdemain (argc=<optimized out>, argv=0x7fff30ee9558) at ./main_x11.cpp:466
#47 0x00007fa28c2f53f1 in __libc_start_main (main=0x5599006da7e0 <main>, argc=1, argv=0x7fff30ee9558, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff30ee9548) at ../csu/libc-start.c:291
#48 0x00005599006da81a in _start ()

*** Bug 366185 has been marked as a duplicate of this bug. ***

*** Bug 347508 has been marked as a duplicate of this bug. ***

Created attachment 106567 [details]
New crash information added by DrKonqi

kwin_x11 (5.8.7) using Qt 5.6.2

- What I was doing when the application crashed:

Went to add the world clock widget to the desktop, kwin crashed.  I was also attempting to adjust the settings to add the global menu to opensuse 42.3 (yes 42.3 not 42.2)

-- Backtrace (Reduced):
#6  KWin::GLShader::resolveLocations (this=0x0) at /usr/src/debug/kwin-5.8.7/libkwineffects/kwinglutils.cpp:417
#7  0x00007f7c3efb73b2 in KWin::GLShader::setUniform (this=0x0, uniform=uniform@entry=KWin::GLShader::Color, value=...) at /usr/src/debug/kwin-5.8.7/libkwineffects/kwinglutils.cpp:478
#8  0x00007f7c3efb903c in KWin::GLVertexBufferPrivate::bindArrays (this=0x1dfe8d0) at /usr/src/debug/kwin-5.8.7/libkwineffects/kwinglutils.cpp:1880
#9  0x00007f7c3efb9b98 in KWin::GLVertexBuffer::bindArrays (this=this@entry=0x1d9c440) at /usr/src/debug/kwin-5.8.7/libkwineffects/kwinglutils.cpp:2167
#10 0x00007f7c42af9d33 in KWin::ContrastEffect::doContrast (this=this@entry=0x2484050, shape=..., screen=..., opacity=1) at /usr/src/debug/kwin-5.8.7/effects/backgroundcontrast/contrast.cpp:422

I'm sorry, but 5.4 is no longer maintained by us. If you are able to reproduce with an up to date version (either 5.8 LTS or 5.10) please report a new bug with a new backtrace.

Martin, the newest backtrace was from 5.8.7.

Reopening, because there is no need to add a new ticket, if this ticket has up-to-date backtrace with line number information.

Git commit 0d7415336f0aeed4f85d28761cff78131d20fce6 by Vlad Zagorodniy.
Committed on 15/02/2019 at 13:51.
Pushed by vladz into branch 'master'.

[effects] Make sure that all effects reset the streaming buffer

Summary:
The streaming buffer is shared so we have to reset it before rendering
something. Otherwise, it's basically undefined behavior.

For example, if the streaming buffer had been used for rendering a
geometry with some color, then the Background Contrast effect may crash
in GLVertexBuffer::bindArrays, it all depends on whether there is any
bounded GLShader. To fix that, the buffer has to be reset.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: davidedmundson, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D19034

M  +1    -0    effects/backgroundcontrast/contrast.cpp
M  +1    -0    effects/blur/blur.cpp

https://commits.kde.org/kwin/0d7415336f0aeed4f85d28761cff78131d20fce6