Hi, I'm Juan (John translated into English from Spanish), but everybody call me juanuni. I have Ubuntu 12.04 minimal with KDE (4.8.something). Yesterday update the kernel for the last. Then update KDE (to KDE 4.12.something) following the intrucctions from http://ubuntuhandbook.org/index.php/201 ... 1310-1204/

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sudo add-apt-repository ppa:kubuntu-ppa/backports
sudo apt-get update
sudo apt-get dist-upgrade


The installation done; but when I reboot, I login normally, but kwin crash. Apps works but no there buttons for close, max or min in the window. I suspect this is due Bespin (my window manager). Effectively, I open "system settings" and I can change anything except "Workspace Appareance", appears crash report. I read the bug report and see something related with Bespin (my window manager).

At the time I thought I could solve this if I login with the previous kernel, but it did not happen. Then I came to my deleting .kde folder (always with the previous kernel) and this time Kwin works with oxygen. However I still have the problem with "Workspace Appareance". The terminal show this :

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~$ systemsettings
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
juanuni@juanuni:~$ KCrash: Application 'systemsettings' crashing...
KCrash: Attempting to start /usr/lib/kde4/libexec/drkonqi from kdeinit
sock_file=/home/juanuni/.kde/socket-juanuni/kdeinit4__0
Unable to start Dr. Konqi
Not forwarding the crash to Apport.


The trace from bug report show this:

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Application: Preferencias del sistema (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1d2b740 (LWP 2137))]

Thread 2 (Thread 0xadd1ab40 (LWP 2170)):
#0  0xb77a5424 in __kernel_vsyscall ()
#1  0xb30ed96b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb5d634bc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb41fc029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb41fc06f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb30e9d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb5d55bae in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb1d2b740 (LWP 2137)):
[KCrash Handler]
#7  0xacfd39f4 in KDecorationOptions::font(bool, bool) const () from /usr/lib/libkdecorations.so.4
#8  0xadf356e7 in Bespin::Factory::readConfig() () from /usr/lib/kde4/kwin3_bespin.so
#9  0xadf3784f in Bespin::Factory::Factory() () from /usr/lib/kde4/kwin3_bespin.so
#10 0xadf37a9c in create_factory () from /usr/lib/kde4/kwin3_bespin.so
#11 0xae7e34b8 in KDecorationPlugins::loadPlugin (this=0x9ff9fa0, nameStr=...) at ../../../kwin/libkdecorations/kdecoration_plugins_p.cpp:248
#12 0xadd5f83c in KWin::DecorationModel::regeneratePreview (this=0xa173ba8, index=..., size=...) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:366
#13 0xadd5fdee in KWin::DecorationModel::regenerateNextPreview (this=0xa173ba8) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:331
#14 0xadd4c5e0 in qt_static_metacall (_a=0xa2a9978, _id=2, _o=0xa173ba8, _c=<optimized out>) at moc_decorationmodel.cpp:65
#15 KWin::DecorationModel::qt_static_metacall (_o=0xa173ba8, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xa2a9978) at moc_decorationmodel.cpp:57
#16 0xb6084101 in QMetaCallEvent::placeMetaCall (this=0xa2f8500, object=0xa173ba8) at kernel/qobject.cpp:525
#17 0xb608d17b in QObject::event (this=0xa173ba8, e=0xa2f8500) at kernel/qobject.cpp:1195
#18 0xb6664df4 in notify_helper (e=0xa2f8500, receiver=0xa173ba8, this=0x9e09058) at kernel/qapplication.cpp:4556
#19 QApplicationPrivate::notify_helper (this=0x9e09058, receiver=0xa173ba8, e=0xa2f8500) at kernel/qapplication.cpp:4528
#20 0xb666a15d in QApplication::notify (this=0xa2f8500, receiver=0xa173ba8, e=0xa2f8500) at kernel/qapplication.cpp:4285
#21 0xb71ea161 in KApplication::notify (this=0xbfa437fc, receiver=0xa173ba8, event=0xa2f8500) at ../../kdeui/kernel/kapplication.cpp:311
#22 0xb6071e0e in QCoreApplication::notifyInternal (this=0xbfa437fc, receiver=0xa173ba8, event=0xa2f8500) at kernel/qcoreapplication.cpp:915
#23 0xb6075f68 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9ddd130) at kernel/qcoreapplication.cpp:1539
#25 0xb607629c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1432
#26 0xb60a4994 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#27 postEventSourceDispatch (s=0x9e08b90) at kernel/qeventdispatcher_glib.cpp:279
#28 0xb3017d46 in g_main_dispatch (context=0x9e08c70) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:2539
#29 g_main_context_dispatch (context=0x9e08c70) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:3075
#30 0xb30180e5 in g_main_context_iterate (dispatch=1, block=-1291691504, context=0x9e08c70, self=<optimized out>) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:3146
#31 g_main_context_iterate (context=0x9e08c70, block=-1291691504, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:3083
#32 0xb30181c1 in g_main_context_iteration (context=0x9e08c70, may_block=1) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:3207
#33 0xb60a4d87 in QEventDispatcherGlib::processEvents (this=0x9ddde90, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#34 0xb671da1a in QGuiEventDispatcherGlib::processEvents (this=0x9ddde90, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#35 0xb60706ad in QEventLoop::processEvents (this=0xbfa43754, flags=...) at kernel/qeventloop.cpp:149
#36 0xb6070949 in QEventLoop::exec (this=0xbfa43754, flags=...) at kernel/qeventloop.cpp:204
#37 0xb607634a in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#38 0xb66629c4 in QApplication::exec () at kernel/qapplication.cpp:3817
#39 0x08050488 in main (argc=110220, argv=0xa16c2b8) at ../../../systemsettings/app/main.cpp:49


I still have doubts, because I don't know if I should show the trace of the bug report that appear when I use the new kernel 3.12, because I want to use kde 4.12.

Do not report this in bugs.kde.org because I believe that this is not a specific problem of kde, but is related to Bespin, which is not part of kde. I hope I explained clearly. I'm new here and I hope I have posted in the right place. Excuse my English. My native language is Spanish. Thanks for your answers.

It's because Ubuntu broke decoration ABI compatibility downstream (again)

Everything's ok with KWin as well as with Bespin, but they don't "match" anymore and you'll have to recompile bespin or get a binary compiled for Ubuntus section adjustments.

This will affect any 3rd party decoration (QtCurve, Skulpture, Dekorator, Smaragd, Oxygen-transparent, ...)

In "kcmshell4 kwindecoration", set the decoration to oxygen, then start "kwin" (either from krunner, ie. alt+f2) so you can use the system again. Then get an updated bespin package or compile bespin yourself from git

luebking wrote:In "kcmshell4 kwindecoration", set the decoration to oxygen, then start "kwin" (either from krunner, ie. alt+f2) so you can use the system again. Then get an updated bespin package or compile bespin yourself from git

@Luebking thanks for your response. This time when I open "kcmshell4 kwindecoration" with KRunner, appears crash report. The terminal output is

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kcmshell(4754)/kwin KDecorationPlugins::canLoad: kwin : path  "/usr/lib/kde4/kwin3_b2.so"  for  "kwin3_b2"
kcmshell(4754)/kwin KDecorationPlugins::canLoad: kwin : path  "/usr/lib/kde4/kwin3_bespin.so"  for  "kwin3_bespin"
kcmshell(4754)/kwin KDecorationPlugins::canLoad: kwin : path  "/usr/lib/kde4/kwin3_laptop.so"  for  "kwin3_laptop"
kcmshell(4754)/kwin KDecorationPlugins::canLoad: kwin : path  "/usr/lib/kde4/kwin3_oxygen.so"  for  "kwin3_oxygen"
kcmshell(4754)/kwin KDecorationPlugins::canLoad: kwin : path  "/usr/lib/kde4/kwin3_b2.so"  for  "kwin3_b2"
kcmshell(4754)/kwin KDecorationPlugins::canLoad: kwin : path  "/usr/lib/kde4/kwin3_bespin.so"  for  "kwin3_bespin"
KCrash: Application 'kcmshell4' crashing...
KCrash: Attempting to start /usr/lib/kde4/libexec/drkonqi from kdeinit
sock_file=/home/juanuni/.kde/socket-juanuni/kdeinit4__0

[1]+  Detenido                kcmshell4 kwindecoration


and the trace from bug report is

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Application: Módulo de control de KDE (kcmshell4), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb55ca980 (LWP 4754))]

Thread 2 (Thread 0xaf175b40 (LWP 4755)):
#0  0xb76f3424 in __kernel_vsyscall ()
#1  0xb59ae96b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb761f4bc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb01f0029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb01f006f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb59aad4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb7611bae in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb55ca980 (LWP 4754)):
[KCrash Handler]
#7  0xae2c69f4 in KDecorationOptions::font(bool, bool) const () from /usr/lib/libkdecorations.so.4
#8  0xae41d6e7 in Bespin::Factory::readConfig() () from /usr/lib/kde4/kwin3_bespin.so
#9  0xae41f84f in Bespin::Factory::Factory() () from /usr/lib/kde4/kwin3_bespin.so
#10 0xae41fa9c in create_factory () from /usr/lib/kde4/kwin3_bespin.so
#11 0xb22ec4b8 in KDecorationPlugins::loadPlugin (this=0x8a284c8, nameStr=...) at ../../../kwin/libkdecorations/kdecoration_plugins_p.cpp:248
#12 0xb23d183c in KWin::DecorationModel::regeneratePreview (this=0x8a24ef0, index=..., size=...) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:366
#13 0xb23d1dee in KWin::DecorationModel::regenerateNextPreview (this=0x8a24ef0) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:331
#14 0xb23be5e0 in qt_static_metacall (_a=0x8c38c18, _id=2, _o=0x8a24ef0, _c=<optimized out>) at moc_decorationmodel.cpp:65
#15 KWin::DecorationModel::qt_static_metacall (_o=0x8a24ef0, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0x8c38c18) at moc_decorationmodel.cpp:57
#16 0xb6bfd101 in QMetaCallEvent::placeMetaCall (this=0x8aac828, object=0x8a24ef0) at kernel/qobject.cpp:525
#17 0xb6c0617b in QObject::event (this=0x8a24ef0, e=0x8aac828) at kernel/qobject.cpp:1195
#18 0xb60d4df4 in notify_helper (e=0x8aac828, receiver=0x8a24ef0, this=0x88df9f0) at kernel/qapplication.cpp:4556
#19 QApplicationPrivate::notify_helper (this=0x88df9f0, receiver=0x8a24ef0, e=0x8aac828) at kernel/qapplication.cpp:4528
#20 0xb60da15d in QApplication::notify (this=0x8aac828, receiver=0x8a24ef0, e=0x8aac828) at kernel/qapplication.cpp:4285
#21 0xb728f161 in KApplication::notify (this=0xbfdffcf0, receiver=0x8a24ef0, event=0x8aac828) at ../../kdeui/kernel/kapplication.cpp:311
#22 0xb6beae0e in QCoreApplication::notifyInternal (this=0xbfdffcf0, receiver=0x8a24ef0, event=0x8aac828) at kernel/qcoreapplication.cpp:915
#23 0xb6beef68 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x88c1a40) at kernel/qcoreapplication.cpp:1539
#25 0xb6bef29c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1432
#26 0xb6c1d994 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#27 postEventSourceDispatch (s=0x88e1ab8) at kernel/qeventdispatcher_glib.cpp:279
#28 0xb5894d46 in g_main_dispatch (context=0x88df350) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:2539
#29 g_main_context_dispatch (context=0x88df350) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:3075
#30 0xb58950e5 in g_main_context_iterate (dispatch=1, block=-1249236464, context=0x88df350, self=<optimized out>) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:3146
#31 g_main_context_iterate (context=0x88df350, block=-1249236464, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:3083
#32 0xb58951c1 in g_main_context_iteration (context=0x88df350, may_block=1) at /build/buildd/glib2.0-2.32.4/./glib/gmain.c:3207
#33 0xb6c1dd87 in QEventDispatcherGlib::processEvents (this=0x88c25b0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#34 0xb618da1a in QGuiEventDispatcherGlib::processEvents (this=0x88c25b0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#35 0xb6be96ad in QEventLoop::processEvents (this=0xbfdffc60, flags=...) at kernel/qeventloop.cpp:149
#36 0xb6be9949 in QEventLoop::exec (this=0xbfdffc60, flags=...) at kernel/qeventloop.cpp:204
#37 0xb66277e9 in QDialog::exec (this=0x89c8ba0) at dialogs/qdialog.cpp:554
#38 0xb76ebdb1 in kdemain (_argc=2, _argv=0xbfdfff94) at ../../kcmshell/main.cpp:297
#39 0x0804850b in main (argc=2, argv=0xbfdfff94) at kcmshell4_dummy.cpp:3


I'm looking for a text file where I can change the window decoration without having to enter graphics mode, to kwindecoration, because it always breaks.

D'oohhh - sorry, that was expectable.

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kwriteconfig --file kwinrc --group Style --key PluginLib kwin3_oxygen

The file to edit by hand (if you'd prefer that) would be ~/.kde/share/config/kwinrc - seek for the [Style] group and the PluginLib key.

luebking wrote:D'oohhh - sorry, that was expectable.

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kwriteconfig --file kwinrc --group Style --key PluginLib kwin3_oxygen

The file to edit by hand (if you'd prefer that) would be ~/.kde/share/config/kwinrc - seek for the [Style] group and the PluginLib key.

Thanks for your answer. I see the kwinrc but no there Style group nor pluginlib key or something related. Should I create them? How I do it?

There would be - otherwise there's no reason why bespin should be loaded (oxygen and plastik are teh defaults)
Maybe in another location, like "~/.kde4"?

In doubt, just run the command.
This one will tell you the current configuration:

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kreadconfig --file kwinrc --group Style --key PluginLib

luebking wrote:There would be - otherwise there's no reason why bespin should be loaded (oxygen and plastik are teh defaults)
Maybe in another location, like "~/.kde4"?

In doubt, just run the command.
This one will tell you the current configuration:

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kreadconfig --file kwinrc --group Style --key PluginLib

Thanks for your answer. With the command

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kreadconfig --file kwinrc --group Style --key PluginLib

nothings ocurr. This is my ~/.kde/share/config/kwinrc

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[$Version]
update_info=kwin_remove_effects.upd:kwin4.7_effects

[Compositing]
AnimationSpeed=3
Backend=OpenGL
Enabled=true
GLColorCorrection=false
GLCore=true
GLLegacy=false
GLPreferBufferSwap=a
GLTextureFilter=2
GraphicsSystem=raster
HiddenPreviews=5
OpenGLIsUnsafe=false
UnredirectFullscreen=false
XRenderSmoothScale=false

[Desktops]
Number=1

[Effect-BoxSwitch]
TabBox=false
TabBoxAlternative=false

[Effect-Zoom]
InitialZoom=1

[Plugins]
kwin4_effect_blurEnabled=true
kwin4_effect_coverswitchEnabled=false
kwin4_effect_cubeEnabled=false
kwin4_effect_cubeslideEnabled=false
kwin4_effect_dashboardEnabled=true
kwin4_effect_desktopgridEnabled=true
kwin4_effect_dialogparentEnabled=true
kwin4_effect_diminactiveEnabled=false
kwin4_effect_dimscreenEnabled=false
kwin4_effect_fadeEnabled=true
kwin4_effect_fadedesktopEnabled=false
kwin4_effect_fallapartEnabled=false
kwin4_effect_flipswitchEnabled=false
kwin4_effect_glideEnabled=false
kwin4_effect_highlightwindowEnabled=true
kwin4_effect_invertEnabled=false
kwin4_effect_kscreenEnabled=true
kwin4_effect_loginEnabled=true
kwin4_effect_logoutEnabled=true
kwin4_effect_lookingglassEnabled=false
kwin4_effect_magiclampEnabled=false
kwin4_effect_magnifierEnabled=false
kwin4_effect_maximizeEnabled=true
kwin4_effect_minimizeanimationEnabled=true
kwin4_effect_mouseclickEnabled=false
kwin4_effect_mousemarkEnabled=false
kwin4_effect_presentwindowsEnabled=true
kwin4_effect_resizeEnabled=false
kwin4_effect_scaleinEnabled=false
kwin4_effect_screenedgeEnabled=true
kwin4_effect_screenshotEnabled=true
kwin4_effect_sheetEnabled=false
kwin4_effect_showfpsEnabled=false
kwin4_effect_showpaintEnabled=false
kwin4_effect_slideEnabled=true
kwin4_effect_slidebackEnabled=false
kwin4_effect_slidingpopupsEnabled=true
kwin4_effect_snaphelperEnabled=false
kwin4_effect_startupfeedbackEnabled=true
kwin4_effect_taskbarthumbnailEnabled=true
kwin4_effect_thumbnailasideEnabled=false
kwin4_effect_trackmouseEnabled=false
kwin4_effect_translucencyEnabled=true
kwin4_effect_windowgeometryEnabled=false
kwin4_effect_wobblywindowsEnabled=false
kwin4_effect_zoomEnabled=true

[TabBox]
DesktopMode=1
ShowTabBox=true

luebking wrote:There would be - otherwise there's no reason why bespin should be loaded (oxygen and plastik are teh defaults)
Maybe in another location, like "~/.kde4"?

In doubt, just run the command.
This one will tell you the current configuration:

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kreadconfig --file kwinrc --group Style --key PluginLib

@luebking thanks for your time. I solve this problem by reinstalling Bespin. Regards.

There's no output because nothing has been set explicitly.
You can just use the other one to set the config to oxygen, but re-installing bespin is oc. a good solution as well =)