Bug 390247 - Kwin crashes when clicking on application launcher
Summary: Kwin crashes when clicking on application launcher
Status: RESOLVED WORKSFORME
Alias: None
Product: kwin
Classification: Plasma
Component: general (show other bugs)
Version: 5.11.5
Platform: Fedora RPMs Linux
: NOR crash
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: drkonqi
: 392767 394372 400977 (view as bug list)
Depends on:
Blocks:
 
Reported: 2018-02-11 04:00 UTC by jkrmnj465
Modified: 2021-01-06 04:34 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
New crash information added by DrKonqi (10.91 KB, text/plain)
2018-05-22 06:28 UTC, mikisid
Details

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Description jkrmnj465 2018-02-11 04:00:53 UTC
Application: kwin_x11 (5.11.5)

Qt Version: 5.9.4
Frameworks Version: 5.42.0
Operating System: Linux 4.14.16-300.fc27.x86_64 x86_64
Distribution: "Fedora release 27 (Twenty Seven)"

-- Information about the crash:
- What I was doing when the application crashed: Clicking on the launcher icon causes the menu to appear disconnected from the panel. It quickly disappears and Kwin crashes. This happens very inconsistently but when it does crash, it matches the above description.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2f1f573940 (LWP 2418))]

Thread 5 (Thread 0x7f2edf3e8700 (LWP 2438)):
#0  0x00007f2f17b1ccbb in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f2f1e24d604 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007f2f1e24d649 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007f2f17b1661b in start_thread () from /lib64/libpthread.so.0
#4  0x00007f2f142cb98f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f2eebfbe700 (LWP 2435)):
#0  0x00007f2f142bf4d6 in ppoll () from /lib64/libc.so.6
#1  0x00007f2f15127b85 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007f2f15128e2d in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#3  0x00007f2f150d962a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f2f14f2a8ca in QThread::exec() () from /lib64/libQt5Core.so.5
#5  0x00007f2f1d04ce75 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#6  0x00007f2f14f2ede2 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#7  0x00007f2f17b1661b in start_thread () from /lib64/libpthread.so.0
#8  0x00007f2f142cb98f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f2ef209f700 (LWP 2422)):
#0  0x00007f2f142bf4d6 in ppoll () from /lib64/libc.so.6
#1  0x00007f2f15127b85 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () from /lib64/libQt5Core.so.5
#2  0x00007f2f15128e2d in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#3  0x00007f2f150d962a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f2f14f2a8ca in QThread::exec() () from /lib64/libQt5Core.so.5
#5  0x00007f2f1a6fd449 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#6  0x00007f2f14f2ede2 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#7  0x00007f2f17b1661b in start_thread () from /lib64/libpthread.so.0
#8  0x00007f2f142cb98f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f2efd7da700 (LWP 2421)):
#0  0x00007f2f142bf3db in poll () from /lib64/libc.so.6
#1  0x00007f2f17018fe7 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007f2f1701adda in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f2efe4b7bf9 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007f2f14f2ede2 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f2f17b1661b in start_thread () from /lib64/libpthread.so.0
#6  0x00007f2f142cb98f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f2f1f573940 (LWP 2418)):
[KCrash Handler]
#6  KWin::Workspace::clientArea (this=this@entry=0x55d9fd228a00, opt=opt@entry=KWin::PlacementArea, screen=0, desktop=<optimized out>, desktop@entry=2) at /usr/src/debug/kwin-5.11.5-2.fc27.x86_64/geometry.cpp:372
#7  0x00007f2f1edf9575 in KWin::Workspace::clientArea (this=this@entry=0x55d9fd228a00, opt=opt@entry=KWin::PlacementArea, p=..., desktop=desktop@entry=2) at /usr/src/debug/kwin-5.11.5-2.fc27.x86_64/geometry.cpp:406
#8  0x00007f2f1ede46ef in KWin::Client::manage (this=this@entry=0x55d9fddc08b0, w=w@entry=27263030, isMapped=isMapped@entry=false) at /usr/src/debug/kwin-5.11.5-2.fc27.x86_64/manage.cpp:276
#9  0x00007f2f1ed57917 in KWin::Workspace::createClient (this=this@entry=0x55d9fd228a00, w=27263030, is_mapped=is_mapped@entry=false) at /usr/src/debug/kwin-5.11.5-2.fc27.x86_64/workspace.cpp:538
#10 0x00007f2f1edd0c4b in KWin::Workspace::workspaceEvent (this=0x55d9fd228a00, e=0x7f2ef8021f40) at /usr/src/debug/kwin-5.11.5-2.fc27.x86_64/events.cpp:357
#11 0x00007f2f150d8124 in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /lib64/libQt5Core.so.5
#12 0x00007f2efe4b9190 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /lib64/libQt5XcbQpa.so.5
#13 0x00007f2efe4b9e1c in QXcbConnection::processXcbEvents() () from /lib64/libQt5XcbQpa.so.5
#14 0x00007f2f15103f2a in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#15 0x00007f2f15f4a89c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#16 0x00007f2f15f520e4 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#17 0x00007f2f150da8a7 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#18 0x00007f2f150dd02b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#19 0x00007f2f15128caa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#20 0x00007f2efe51af6d in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5XcbQpa.so.5
#21 0x00007f2f150d962a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#22 0x00007f2f150e1d54 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#23 0x00007f2f1f1bf186 in kdemain (argc=<optimized out>, argv=0x7ffc8d88d348) at /usr/src/debug/kwin-5.11.5-2.fc27.x86_64/main_x11.cpp:466
#24 0x00007f2f141d500a in __libc_start_main () from /lib64/libc.so.6
#25 0x000055d9fcc3fc8a in _start ()

Possible duplicates by query: bug 385757, bug 344312.

Reported using DrKonqi
Comment 1 Martin Flöser 2018-02-11 08:08:54 UTC
could you please provide the output of:
qdbus org.kde.KWin /KWin supportInformation
Comment 2 jkrmnj465 2018-02-12 17:56:01 UTC
Yes, here it is: https://paste.kde.org/pgzmzldqe
Comment 3 Martin Flöser 2018-03-04 14:52:21 UTC
Could you please add the supportInformation again and please add it to the bug report. The paste expired.
Comment 4 jkrmnj465 2018-03-05 21:55:05 UTC
(In reply to Martin Flöser from comment #3)
> Could you please add the supportInformation again and please add it to the
> bug report. The paste expired.

Sorry about that. I have pasted the results in below. Also, I am fairly certain at this point that the crashes were caused by https://github.com/rliang/kwin-dynamic-virtual-desktops trying to move the launcher window around. I modified that extension to ignore the launcher and have had no problems since then.

KWin Support Information:
The following information should be used when requesting support on e.g. http://forum.kde.org.
It provides information about the currently running instance, which options are used,
what OpenGL driver and which effects are running.
Please post the information provided underneath this introductory text to a paste bin service
like http://paste.kde.org instead of pasting into support threads.

==========================

Version
=======
KWin version: 5.11.5
Qt Version: 5.9.4
Qt compile version: 5.9.4
XCB compile version: 1.12

Operation Mode: X11 only

Build Options
=============
KWIN_BUILD_DECORATIONS: yes
KWIN_BUILD_TABBOX: yes
KWIN_BUILD_ACTIVITIES: yes
HAVE_INPUT: yes
HAVE_DRM: yes
HAVE_GBM: yes
HAVE_X11_XCB: yes
HAVE_EPOXY_GLX: yes
HAVE_WAYLAND_EGL: yes

X11
===
Vendor: Fedora Project
Vendor Release: 11906000
Protocol Version/Revision: 11/0
SHAPE: yes; Version: 0x11
RANDR: yes; Version: 0x14
DAMAGE: yes; Version: 0x11
Composite: yes; Version: 0x4
RENDER: yes; Version: 0xb
XFIXES: yes; Version: 0x50
SYNC: yes; Version: 0x31
GLX: yes; Version: 0x0

Decoration
==========
Plugin: org.kde.breeze
Theme: 
Blur: 0
onAllDesktopsAvailable: true
alphaChannelSupported: true
closeOnDoubleClickOnMenu: false
decorationButtonsLeft: 1, 0, 2
decorationButtonsRight: 6, 3, 4, 5
borderSize: 0
gridUnit: 20
font: Noto Sans,10,-1,0,50,0,0,0,0,0,Regular
smallSpacing: 5
largeSpacing: 20

Options
=======
focusPolicy: 1
nextFocusPrefersMouse: true
clickRaise: true
autoRaise: false
autoRaiseInterval: 750
delayFocusInterval: 300
shadeHover: false
shadeHoverInterval: 250
separateScreenFocus: false
placement: 4
focusPolicyIsReasonable: true
borderSnapZone: 10
windowSnapZone: 10
centerSnapZone: 0
snapOnlyWhenOverlapping: false
rollOverDesktops: true
focusStealingPreventionLevel: 1
legacyFullscreenSupport: false
operationTitlebarDblClick: 5000
operationMaxButtonLeftClick: 5000
operationMaxButtonMiddleClick: 5015
operationMaxButtonRightClick: 5014
commandActiveTitlebar1: 0
commandActiveTitlebar2: 30
commandActiveTitlebar3: 2
commandInactiveTitlebar1: 4
commandInactiveTitlebar2: 30
commandInactiveTitlebar3: 2
commandWindow1: 7
commandWindow2: 8
commandWindow3: 8
commandWindowWheel: 31
commandAll1: 10
commandAll2: 3
commandAll3: 14
keyCmdAllModKey: 16777251
showGeometryTip: false
condensedTitle: false
electricBorderMaximize: true
electricBorderTiling: true
electricBorderCornerRatio: 0.25
borderlessMaximizedWindows: true
killPingTimeout: 5000
hideUtilityWindowsForInactive: true
inactiveTabsSkipTaskbar: false
autogroupSimilarWindows: false
autogroupInForeground: true
compositingMode: 1
useCompositing: true
compositingInitialized: true
hiddenPreviews: 1
glSmoothScale: 2
xrenderSmoothScale: false
maxFpsInterval: 16666666
refreshRate: 0
vBlankTime: 6000000
glStrictBinding: true
glStrictBindingFollowsDriver: true
glCoreProfile: true
glPreferBufferSwap: 101
glPlatformInterface: 1
windowsBlockCompositing: true

Screen Edges
============
desktopSwitching: false
desktopSwitchingMovingClients: false
cursorPushBackDistance: 1x1
timeThreshold: 150
reActivateThreshold: 350
actionTopLeft: 0
actionTop: 0
actionTopRight: 0
actionRight: 0
actionBottomRight: 0
actionBottom: 0
actionBottomLeft: 0
actionLeft: 0

Screens
=======
Multi-Head: no
Active screen follows mouse:  yes
Number of Screens: 1

Screen 0:
---------
Name: eDP-1
Geometry: 0,0,3840x2160
Refresh Rate: 60.006


Compositing
===========
Compositing is active
Compositing Type: OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 530 (Skylake GT2) 
OpenGL version string: 4.5 (Core Profile) Mesa 17.3.5
OpenGL platform interface: GLX
OpenGL shading language version string: 4.50
Driver: Intel
GPU class: Unknown
OpenGL version: 4.5
GLSL version: 4.50
Mesa version: 17.3.5
Linux kernel version: 4.15.6
Direct rendering: Requires strict binding: yes
GLSL shaders:  yes
Texture NPOT support:  yes
Virtual Machine:  no
OpenGL 2 Shaders are used
Painting blocks for vertical retrace:  no

Loaded Effects:
---------------
kwin4_effect_windowaperture
kwin4_effect_morphingpopups
kwin4_effect_maximize
kwin4_effect_logout
kwin4_effect_login
kwin4_effect_frozenapp
kwin4_effect_fade
kwin4_effect_dialogparent
zoom
slidingpopups
slide
screenshot
minimizeanimation
desktopgrid
colorpicker
sheet
presentwindows
highlightwindow
blur
contrast
startupfeedback
screenedge
kscreen

Currently Active Effects:
-------------------------
blur
contrast

Effect Settings:
----------------
kwin4_effect_windowaperture:

kwin4_effect_morphingpopups:

kwin4_effect_maximize:

kwin4_effect_logout:

kwin4_effect_login:

kwin4_effect_frozenapp:

kwin4_effect_fade:

kwin4_effect_dialogparent:

zoom:
zoomFactor: 1.2
mousePointer: 0
mouseTracking: 0
enableFocusTracking: false
followFocus: true
focusDelay: 350
moveFactor: 20
targetZoom: 1

slidingpopups:
fadeInTime: 150
fadeOutTime: 250

slide:

screenshot:

minimizeanimation:

desktopgrid:
zoomDuration: 300
border: 10
desktopNameAlignment: 0
layoutMode: 0
customLayoutRows: 2
usePresentWindows: true

colorpicker:

sheet:
duration: 500

presentwindows:
layoutMode: 0
showCaptions: true
showIcons: true
doNotCloseWindows: false
ignoreMinimized: false
accuracy: 20
fillGaps: true
fadeDuration: 150
showPanel: false
leftButtonWindow: 1
rightButtonWindow: 2
middleButtonWindow: 0
leftButtonDesktop: 2
middleButtonDesktop: 0
rightButtonDesktop: 0

highlightwindow:

blur:
blurRadius: 14
cacheTexture: true

contrast:

startupfeedback:
type: 1

screenedge:

kscreen:
Comment 5 Martin Flöser 2018-04-06 04:24:16 UTC
*** Bug 392767 has been marked as a duplicate of this bug. ***
Comment 6 mikisid 2018-05-17 12:42:01 UTC
*** Bug 394372 has been marked as a duplicate of this bug. ***
Comment 7 mikisid 2018-05-22 06:28:17 UTC
Created attachment 112804 [details]
New crash information added by DrKonqi

kwin_x11 (5.12.5) using Qt 5.10.0

- What I was doing when the application crashed:
Whan open KMenu kwin crash and sometimes turn off my decoration and need to enable by hand later.

-- Backtrace (Reduced):
#6  KWin::Workspace::clientArea (this=this@entry=0x9eebd0, opt=opt@entry=KWin::PlacementArea, screen=0, desktop=<optimized out>, desktop@entry=2) at /workspace/build/geometry.cpp:372
#7  0x00007f880c5b1c21 in KWin::Workspace::clientArea (this=0x9eebd0, opt=opt@entry=KWin::PlacementArea, p=..., desktop=desktop@entry=2) at /workspace/build/geometry.cpp:406
#8  0x00007f880c59c30f in KWin::Client::manage (this=this@entry=0xec1f50, w=w@entry=39845955, isMapped=isMapped@entry=false) at /workspace/build/manage.cpp:276
#9  0x00007f880c512724 in KWin::Workspace::createClient (this=this@entry=0x9eebd0, w=39845955, is_mapped=is_mapped@entry=false) at /workspace/build/workspace.cpp:561
#10 0x00007f880c588174 in KWin::Workspace::workspaceEvent (this=<optimized out>, e=0x7f87ec005230) at /workspace/build/events.cpp:317
Comment 8 mikisid 2018-05-22 06:44:26 UTC
(In reply to jkrmnj465 from comment #4)
> (In reply to Martin Flöser from comment #3)
> > Could you please add the supportInformation again and please add it to the
> > bug report. The paste expired.
> 
> Sorry about that. I have pasted the results in below. Also, I am fairly
> certain at this point that the crashes were caused by
> https://github.com/rliang/kwin-dynamic-virtual-desktops trying to move the
> launcher window around. I modified that extension to ignore the launcher and
> have had no problems since then.
> 
> KWin Support Information:
> The following information should be used when requesting support on e.g.
> http://forum.kde.org.
> It provides information about the currently running instance, which options
> are used,
> what OpenGL driver and which effects are running.
> Please post the information provided underneath this introductory text to a
> paste bin service
> like http://paste.kde.org instead of pasting into support threads.
> 
> ==========================
> 
> Version
> =======
> KWin version: 5.11.5
> Qt Version: 5.9.4
> Qt compile version: 5.9.4
> XCB compile version: 1.12
> 
> Operation Mode: X11 only
> 
> Build Options
> =============
> KWIN_BUILD_DECORATIONS: yes
> KWIN_BUILD_TABBOX: yes
> KWIN_BUILD_ACTIVITIES: yes
> HAVE_INPUT: yes
> HAVE_DRM: yes
> HAVE_GBM: yes
> HAVE_X11_XCB: yes
> HAVE_EPOXY_GLX: yes
> HAVE_WAYLAND_EGL: yes
> 
> X11
> ===
> Vendor: Fedora Project
> Vendor Release: 11906000
> Protocol Version/Revision: 11/0
> SHAPE: yes; Version: 0x11
> RANDR: yes; Version: 0x14
> DAMAGE: yes; Version: 0x11
> Composite: yes; Version: 0x4
> RENDER: yes; Version: 0xb
> XFIXES: yes; Version: 0x50
> SYNC: yes; Version: 0x31
> GLX: yes; Version: 0x0
> 
> Decoration
> ==========
> Plugin: org.kde.breeze
> Theme: 
> Blur: 0
> onAllDesktopsAvailable: true
> alphaChannelSupported: true
> closeOnDoubleClickOnMenu: false
> decorationButtonsLeft: 1, 0, 2
> decorationButtonsRight: 6, 3, 4, 5
> borderSize: 0
> gridUnit: 20
> font: Noto Sans,10,-1,0,50,0,0,0,0,0,Regular
> smallSpacing: 5
> largeSpacing: 20
> 
> Options
> =======
> focusPolicy: 1
> nextFocusPrefersMouse: true
> clickRaise: true
> autoRaise: false
> autoRaiseInterval: 750
> delayFocusInterval: 300
> shadeHover: false
> shadeHoverInterval: 250
> separateScreenFocus: false
> placement: 4
> focusPolicyIsReasonable: true
> borderSnapZone: 10
> windowSnapZone: 10
> centerSnapZone: 0
> snapOnlyWhenOverlapping: false
> rollOverDesktops: true
> focusStealingPreventionLevel: 1
> legacyFullscreenSupport: false
> operationTitlebarDblClick: 5000
> operationMaxButtonLeftClick: 5000
> operationMaxButtonMiddleClick: 5015
> operationMaxButtonRightClick: 5014
> commandActiveTitlebar1: 0
> commandActiveTitlebar2: 30
> commandActiveTitlebar3: 2
> commandInactiveTitlebar1: 4
> commandInactiveTitlebar2: 30
> commandInactiveTitlebar3: 2
> commandWindow1: 7
> commandWindow2: 8
> commandWindow3: 8
> commandWindowWheel: 31
> commandAll1: 10
> commandAll2: 3
> commandAll3: 14
> keyCmdAllModKey: 16777251
> showGeometryTip: false
> condensedTitle: false
> electricBorderMaximize: true
> electricBorderTiling: true
> electricBorderCornerRatio: 0.25
> borderlessMaximizedWindows: true
> killPingTimeout: 5000
> hideUtilityWindowsForInactive: true
> inactiveTabsSkipTaskbar: false
> autogroupSimilarWindows: false
> autogroupInForeground: true
> compositingMode: 1
> useCompositing: true
> compositingInitialized: true
> hiddenPreviews: 1
> glSmoothScale: 2
> xrenderSmoothScale: false
> maxFpsInterval: 16666666
> refreshRate: 0
> vBlankTime: 6000000
> glStrictBinding: true
> glStrictBindingFollowsDriver: true
> glCoreProfile: true
> glPreferBufferSwap: 101
> glPlatformInterface: 1
> windowsBlockCompositing: true
> 
> Screen Edges
> ============
> desktopSwitching: false
> desktopSwitchingMovingClients: false
> cursorPushBackDistance: 1x1
> timeThreshold: 150
> reActivateThreshold: 350
> actionTopLeft: 0
> actionTop: 0
> actionTopRight: 0
> actionRight: 0
> actionBottomRight: 0
> actionBottom: 0
> actionBottomLeft: 0
> actionLeft: 0
> 
> Screens
> =======
> Multi-Head: no
> Active screen follows mouse:  yes
> Number of Screens: 1
> 
> Screen 0:
> ---------
> Name: eDP-1
> Geometry: 0,0,3840x2160
> Refresh Rate: 60.006
> 
> 
> Compositing
> ===========
> Compositing is active
> Compositing Type: OpenGL
> OpenGL vendor string: Intel Open Source Technology Center
> OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 530 (Skylake GT2) 
> OpenGL version string: 4.5 (Core Profile) Mesa 17.3.5
> OpenGL platform interface: GLX
> OpenGL shading language version string: 4.50
> Driver: Intel
> GPU class: Unknown
> OpenGL version: 4.5
> GLSL version: 4.50
> Mesa version: 17.3.5
> Linux kernel version: 4.15.6
> Direct rendering: Requires strict binding: yes
> GLSL shaders:  yes
> Texture NPOT support:  yes
> Virtual Machine:  no
> OpenGL 2 Shaders are used
> Painting blocks for vertical retrace:  no
> 
> Loaded Effects:
> ---------------
> kwin4_effect_windowaperture
> kwin4_effect_morphingpopups
> kwin4_effect_maximize
> kwin4_effect_logout
> kwin4_effect_login
> kwin4_effect_frozenapp
> kwin4_effect_fade
> kwin4_effect_dialogparent
> zoom
> slidingpopups
> slide
> screenshot
> minimizeanimation
> desktopgrid
> colorpicker
> sheet
> presentwindows
> highlightwindow
> blur
> contrast
> startupfeedback
> screenedge
> kscreen
> 
> Currently Active Effects:
> -------------------------
> blur
> contrast
> 
> Effect Settings:
> ----------------
> kwin4_effect_windowaperture:
> 
> kwin4_effect_morphingpopups:
> 
> kwin4_effect_maximize:
> 
> kwin4_effect_logout:
> 
> kwin4_effect_login:
> 
> kwin4_effect_frozenapp:
> 
> kwin4_effect_fade:
> 
> kwin4_effect_dialogparent:
> 
> zoom:
> zoomFactor: 1.2
> mousePointer: 0
> mouseTracking: 0
> enableFocusTracking: false
> followFocus: true
> focusDelay: 350
> moveFactor: 20
> targetZoom: 1
> 
> slidingpopups:
> fadeInTime: 150
> fadeOutTime: 250
> 
> slide:
> 
> screenshot:
> 
> minimizeanimation:
> 
> desktopgrid:
> zoomDuration: 300
> border: 10
> desktopNameAlignment: 0
> layoutMode: 0
> customLayoutRows: 2
> usePresentWindows: true
> 
> colorpicker:
> 
> sheet:
> duration: 500
> 
> presentwindows:
> layoutMode: 0
> showCaptions: true
> showIcons: true
> doNotCloseWindows: false
> ignoreMinimized: false
> accuracy: 20
> fillGaps: true
> fadeDuration: 150
> showPanel: false
> leftButtonWindow: 1
> rightButtonWindow: 2
> middleButtonWindow: 0
> leftButtonDesktop: 2
> middleButtonDesktop: 0
> rightButtonDesktop: 0
> 
> highlightwindow:
> 
> blur:
> blurRadius: 14
> cacheTexture: true
> 
> contrast:
> 
> startupfeedback:
> type: 1
> 
> screenedge:
> 
> kscreen:

How you modified that extansion?
Comment 9 mikisid 2018-05-23 09:45:13 UTC
I can confirm that the https://github.com/rliang/kwin-dynamic-virtual-desktops extension cause this problem, i turned off extension and don't have any problem further.
Comment 10 jkrmnj465 2018-05-23 21:32:15 UTC
(In reply to mikisid from comment #8)

> How you modified that extansion?

You can see the change I made here: https://github.com/rliang/kwin-dynamic-virtual-desktops/commit/5608feb5de12a183012c812bc7cc2f8f963e33e2

I don't think the package online has been updated but if you install it from Github it should work.
Comment 11 Vlad Zahorodnii 2018-11-12 18:51:46 UTC
*** Bug 400977 has been marked as a duplicate of this bug. ***
Comment 12 Justin Zobel 2020-12-07 04:12:01 UTC
Thank you for the report.

As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved.

I have set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved/worksforme" when you respond, thank you.
Comment 13 Bug Janitor Service 2020-12-22 04:34:43 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 14 Bug Janitor Service 2021-01-06 04:34:14 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!