I recently upgraded my Kubuntu from 13.04 to 13.10. I noticed a general slow down that did not occur before, especially when multi tasking, i.e. painting in Krita and recording the session with Kazam. I decided to check my graphics drivers and found several versions available under "additional drivers". None of them worked properly, opengl was not functioning. After my last try I rebooted and saw the crash report from K daemon. The desktop settings where reset and there was no wireless connection. I uninstalled the graphic drivers and when I rebooted, opengl was recognized and worked normally. But the K daemon problem remains, every time I login it crashes. This is the backtrace information I saved from the crash report: ------------------------------------------------------------------------------------ Application: KDE Daemon (kded4), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7f61febe47c0 (LWP 1552))] Thread 6 (Thread 0x7f61e3d8c700 (LWP 1554)): #0 0x00007f61f95990ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007f61f95993c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f61f95597b6 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f61fd884a76 in QEventDispatcherGlib::processEvents (this=0x7f61dc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426 #4 0x00007f61fd8565ef in QEventLoop::processEvents (this=this@entry=0x7f61e3d8bdb0, flags=...) at kernel/qeventloop.cpp:149 #5 0x00007f61fd8568e5 in QEventLoop::exec (this=this@entry=0x7f61e3d8bdb0, flags=...) at kernel/qeventloop.cpp:204 #6 0x00007f61fd75588f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542 #7 0x00007f61fd757f2f in QThreadPrivate::start (arg=0x24757d0) at thread/qthread_unix.cpp:338 #8 0x00007f61f9c34f6e in start_thread (arg=0x7f61e3d8c700) at pthread_create.c:311 #9 0x00007f61fc4599cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 5 (Thread 0x7f61cd3aa700 (LWP 1677)): #0 0x00007f61fc44b6bd in read () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f61f9598670 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f61f95591cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f61f955963b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f61f95597ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f61fd884a76 in QEventDispatcherGlib::processEvents (this=0x7f61ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426 #6 0x00007f61fd8565ef in QEventLoop::processEvents (this=this@entry=0x7f61cd3a9d70, flags=...) at kernel/qeventloop.cpp:149 #7 0x00007f61fd8568e5 in QEventLoop::exec (this=this@entry=0x7f61cd3a9d70, flags=...) at kernel/qeventloop.cpp:204 #8 0x00007f61fd75588f in QThread::exec (this=this@entry=0x28863d0) at thread/qthread.cpp:542 #9 0x00007f61fd837d13 in QInotifyFileSystemWatcherEngine::run (this=0x28863d0) at io/qfilesystemwatcher_inotify.cpp:265 #10 0x00007f61fd757f2f in QThreadPrivate::start (arg=0x28863d0) at thread/qthread_unix.cpp:338 #11 0x00007f61f9c34f6e in start_thread (arg=0x7f61cd3aa700) at pthread_create.c:311 #12 0x00007f61fc4599cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 4 (Thread 0x7f61cc9a3700 (LWP 1718)): #0 0x00007f61f95990e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007f61f9599399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f61f9558f3b in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f61f9559612 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f61f95597ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f61fd884a76 in QEventDispatcherGlib::processEvents (this=0x7f61a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426 #6 0x00007f61fd8565ef in QEventLoop::processEvents (this=this@entry=0x7f61cc9a2d70, flags=...) at kernel/qeventloop.cpp:149 #7 0x00007f61fd8568e5 in QEventLoop::exec (this=this@entry=0x7f61cc9a2d70, flags=...) at kernel/qeventloop.cpp:204 #8 0x00007f61fd75588f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542 #9 0x00007f61e0fe5fd7 in KCupsConnection::run() () from /usr/lib/libkcupslib.so #10 0x00007f61fd757f2f in QThreadPrivate::start (arg=0x24f55e0) at thread/qthread_unix.cpp:338 #11 0x00007f61f9c34f6e in start_thread (arg=0x7f61cc9a3700) at pthread_create.c:311 #12 0x00007f61fc4599cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 3 (Thread 0x7f61c7fff700 (LWP 1719)): #0 0x00007f61f9c3805f in __pthread_mutex_unlock_usercnt (mutex=0x7f61a4000a60, decr=<optimized out>) at pthread_mutex_unlock.c:52 #1 0x00007f61f95993d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f61f9559119 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f61f955963b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f61f95597ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f61fd884a76 in QEventDispatcherGlib::processEvents (this=0x7f61a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426 #6 0x00007f61fd8565ef in QEventLoop::processEvents (this=this@entry=0x7f61c7ffedb0, flags=...) at kernel/qeventloop.cpp:149 #7 0x00007f61fd8568e5 in QEventLoop::exec (this=this@entry=0x7f61c7ffedb0, flags=...) at kernel/qeventloop.cpp:204 #8 0x00007f61fd75588f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542 #9 0x00007f61fd757f2f in QThreadPrivate::start (arg=0x21f0f40) at thread/qthread_unix.cpp:338 #10 0x00007f61f9c34f6e in start_thread (arg=0x7f61c7fff700) at pthread_create.c:311 #11 0x00007f61fc4599cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 2 (Thread 0x7f61c718f700 (LWP 1816)): #0 0x00007f61fc44cf7d in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f61f95596a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f61f95597ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f61fd884a76 in QEventDispatcherGlib::processEvents (this=0x7f61940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426 #4 0x00007f61fd8565ef in QEventLoop::processEvents (this=this@entry=0x7f61c718ed70, flags=...) at kernel/qeventloop.cpp:149 #5 0x00007f61fd8568e5 in QEventLoop::exec (this=this@entry=0x7f61c718ed70, flags=...) at kernel/qeventloop.cpp:204 #6 0x00007f61fd75588f in QThread::exec (this=this@entry=0x2a077a0) at thread/qthread.cpp:542 #7 0x00007f61fd837d13 in QInotifyFileSystemWatcherEngine::run (this=0x2a077a0) at io/qfilesystemwatcher_inotify.cpp:265 #8 0x00007f61fd757f2f in QThreadPrivate::start (arg=0x2a077a0) at thread/qthread_unix.cpp:338 #9 0x00007f61f9c34f6e in start_thread (arg=0x7f61c718f700) at pthread_create.c:311 #10 0x00007f61fc4599cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 1 (Thread 0x7f61febe47c0 (LWP 1552)): [KCrash Handler] #6 0x00007f61e2078e00 in ?? () from /usr/lib/kde4/plugins/kscreen/KSC_XRandR.so #7 0x00007f61e20751fa in ?? () from /usr/lib/kde4/plugins/kscreen/KSC_XRandR.so #8 0x00007f61e24a6d4f in KScreen::Config::setConfig(KScreen::Config*) () from /usr/lib/libkscreen.so.1 #9 0x00007f61e26b829f in KScreenDaemon::applyIdealConfig() () from /usr/lib/kde4/kded_kscreen.so #10 0x00007f61e26b8450 in KScreenDaemon::applyKnownConfig() () from /usr/lib/kde4/kded_kscreen.so #11 0x00007f61e26b84dd in KScreenDaemon::applyConfig() () from /usr/lib/kde4/kded_kscreen.so #12 0x00007f61fd86ba58 in QMetaObject::activate (sender=0x2264fe0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539 #13 0x00007f61fd86ba58 in QMetaObject::activate (sender=0x24da5b0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539 #14 0x00007f61e26c1f2e in ?? () from /usr/lib/kde4/kded_kscreen.so #15 0x00007f61fd86ba58 in QMetaObject::activate (sender=0x28a0d00, m=m@entry=0x7f61fae34640 <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff279c1fd0) at kernel/qobject.cpp:3539 #16 0x00007f61fac15b8f in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=0x28a0d00) at .moc/release-shared/moc_qdbuspendingcall.cpp:106 #17 0x00007f61fd86fdce in QObject::event (this=0x28a0d00, e=<optimized out>) at kernel/qobject.cpp:1194 #18 0x00007f61fcbf4dfc in QApplicationPrivate::notify_helper (this=this@entry=0x227ab80, receiver=receiver@entry=0x28a0d00, e=e@entry=0x25c48e0) at kernel/qapplication.cpp:4567 #19 0x00007f61fcbfb470 in QApplication::notify (this=this@entry=0x7fff279c2730, receiver=receiver@entry=0x28a0d00, e=e@entry=0x25c48e0) at kernel/qapplication.cpp:4353 #20 0x00007f61fe5d5a6a in KApplication::notify (this=0x7fff279c2730, receiver=0x28a0d00, event=0x25c48e0) at ../../kdeui/kernel/kapplication.cpp:311 #21 0x00007f61fd8578bd in QCoreApplication::notifyInternal (this=0x7fff279c2730, receiver=receiver@entry=0x28a0d00, event=event@entry=0x25c48e0) at kernel/qcoreapplication.cpp:946 #22 0x00007f61fd85ae1f in sendEvent (event=0x25c48e0, receiver=0x28a0d00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231 #23 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x21ce150) at kernel/qcoreapplication.cpp:1570 #24 0x00007f61fd85b2c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463 #25 0x00007f61fd885073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236 #26 postEventSourceDispatch (s=0x2279150) at kernel/qeventdispatcher_glib.cpp:279 #27 0x00007f61f95593b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #28 0x00007f61f9559708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #29 0x00007f61f95597ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #30 0x00007f61fd884a55 in QEventDispatcherGlib::processEvents (this=0x21d0440, flags=...) at kernel/qeventdispatcher_glib.cpp:424 #31 0x00007f61fcc969d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204 #32 0x00007f61fd8565ef in QEventLoop::processEvents (this=this@entry=0x7fff279c2600, flags=...) at kernel/qeventloop.cpp:149 #33 0x00007f61fd8568e5 in QEventLoop::exec (this=this@entry=0x7fff279c2600, flags=...) at kernel/qeventloop.cpp:204 #34 0x00007f61fd85be5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218 #35 0x00007f61fcbf334c in QApplication::exec () at kernel/qapplication.cpp:3828 #36 0x00007f61e96ae95b in kdemain (argc=1, argv=0x2240480) at ../../kded/kded.cpp:925 #37 0x00000000004083f5 in launch (argc=argc@entry=1, _name=_name@entry=0x40b007 "kded4", args=<optimized out>, args@entry=0x0, cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x0, reset_env=reset_env@entry=false, tty=tty@entry=0x0, avoid_loops=avoid_loops@entry=false, startup_id_str=startup_id_str@entry=0x40ae96 "0") at ../../kinit/kinit.cpp:738 #38 0x00000000004059a6 in main (argc=4, argv=<optimized out>, envp=0x7fff279c2e90) at ../../kinit/kinit.cpp:1853 Reproducible: Didn't try Steps to Reproduce: 1.Updated nvidia drivers 2.Activated driver 3.04 3.Rebooted Actual Results: Kdaemon crash report appears on startup, no wireless connection. Expected Results: Kdaemon working normally System information: Laptop Dell Inspiron 7720 Processor: Intel i7 Memory: 8GB RAM Graphics card: nvidia GeForce GT 650M
UPDATE: Since I do not have any external screens at the moment, I uninstalled kscreen and libscreen. NOw the system is back to normal. Should I attempt to install these again?
Was this happening all the time? can you please install kscreen back and execute kscreen-console bug and copy paste the result here? Thanks !
If you can provide the information requested in comment #2, please add it.
Hi, sorry for the silence, it was not possible to do anything during this period. So, I installed the kscreen again and immediatelly the ldaemon crashed. Yes, it happens every time. Luckily this time I was able to generate a full backtrace. This is what I got with kscreen-console bug: $ kscreen-console bug Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 14: reading configurations from ~/.fonts.conf is deprecated. START kscreen-console(3675)/KSRandr XRandRX11Helper::XRandRX11Helper: Detected XRandR 1.4 kscreen-console(3675)/KSRandr XRandRX11Helper::XRandRX11Helper: Event Base: 89 kscreen-console(3675)/KSRandr XRandRX11Helper::XRandRX11Helper: Event Error: 147 Config::current() took 29 milliseconds ========================xrandr --verbose========================== Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 32767 x 32767 LVDS1 connected 1920x1080+0+0 (0x6e) normal (normal left inverted right x axis y axis) 382mm x 215mm Identifier: 0x68 Timestamp: 38345 Subpixel: horizontal rgb Gamma: 1.0:1.0:1.0 Brightness: 1.0 Clones: CRTC: 0 CRTCs: 0 1 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: EDID: 00ffffffffffff000dae201700000000 021501049026157802ed95a3544c9c26 0f505400000001010101010101010101 010101010101313780be703824403826 46007ed71000001a0000000000000000 00000000000000000000000000fe0048 444b5056833137334847450a00000000 000041019e0000000002010a202000f0 BACKLIGHT: 84 range: (0, 100) Backlight: 84 range: (0, 100) scaling mode: Full aspect supported: NoneFullCenterFull aspect 640x480 (0xda) 25.2MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz v: height 480 start 490 end 492 total 525 clock 59.9Hz VGA2 disconnected (normal left inverted right x axis y axis) Identifier: 0x69 Timestamp: 38345 Subpixel: unknown Clones: CRTCs: 0 1 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: HDMI1 disconnected (normal left inverted right x axis y axis) Identifier: 0x6a Timestamp: 38345 Subpixel: unknown Clones: CRTCs: 0 1 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: Broadcast RGB: Automatic supported: AutomaticFullLimited 16:235 audio: auto supported: force-dvioffautoon DP1 disconnected (normal left inverted right x axis y axis) Identifier: 0x6b Timestamp: 38345 Subpixel: unknown Clones: CRTCs: 0 1 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: Broadcast RGB: Automatic supported: AutomaticFullLimited 16:235 audio: auto supported: force-dvioffautoon VIRTUAL1 disconnected (normal left inverted right x axis y axis) Identifier: 0x6c Timestamp: 38345 Subpixel: no subpixels Clones: CRTCs: 3 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: VGA-1 disconnected (normal left inverted right x axis y axis) Identifier: 0x43 Timestamp: 38345 Subpixel: unknown Clones: CRTCs: 4 5 6 7 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: scaling mode: None supported: NoneFullCenterFull aspect color vibrance: 150 range: (0, 200) vibrant hue: 90 range: (0, 180) 1920x1080 (0x6e) 141.3MHz h: width 1920 start 1976 end 2014 total 2110 skew 0 clock 67.0KHz v: height 1080 start 1084 end 1090 total 1116 clock 60.0Hz ========================Outputs=================================== KScreen version: 1.0.1 Screen: maxSize: QSize(32767, 32767) minSize: QSize(320, 200) currentSize: QSize(1920, 1080) ----------------------------------------------------- Id: 104 Name: "LVDS1" Type: "Panel (Laptop)" Connected: true Enabled: true Primary: false Rotation: 1 Pos: QPoint(0,0) Clones: None Mode: "110" Preferred Mode: "218" Preferred modes: () Modes: "218" "640x480" QSize(640, 480) 59.9405 EDID Info: Device ID: "xrandr-unknown" Name: "" Vendor: "" Serial: "" EISA ID: "HDKPV�173HGE" Hash: "48ead1f8564c7bceb6c19c7f76efcd28" Width: 38 Height: 21 Gamma: 2 Red: QQuaternion(scalar:1, vector:(0.639648, 0.328125, 0)) Green: QQuaternion(scalar:1, vector:(0.299805, 0.610352, 0)) Blue: QQuaternion(scalar:1, vector:(0.150391, 0.0595703, 0)) White: QQuaternion(scalar:1, vector:(0.313477, 0.329102, 0)) ----------------------------------------------------- Id: 105 Name: "VGA2" Type: "Unknown" Connected: false ----------------------------------------------------- Id: 106 Name: "HDMI1" Type: "Unknown" Connected: false ----------------------------------------------------- Id: 107 Name: "DP1" Type: "Unknown" Connected: false ----------------------------------------------------- Id: 108 Name: "VIRTUAL1" Type: "Unknown" Connected: false ----------------------------------------------------- Id: 67 Name: "VGA-1" Type: "Unknown" Connected: false ========================Configurations============================ Configs in: "/home/odysseas/.kde/share/apps/kscreen/" Number of files: 2 "3825a01e7d4793c3e7910e89bf359fab" "[ { "enabled" : true, "id" : "48ead1f8564c7bceb6c19c7f76efcd28", "metadata" : { "fullname" : "xrandr-unknown", "name" : "LVDS1" }, "mode" : { "refresh" : 60.0019, "size" : { "height" : 1080, "width" : 1920 } }, "pos" : { "x" : 0, "y" : 0 }, "primary" : true, "rotation" : 1 } ]" "c21f969b5f03d33d43e04f8f136e7682" "[ { "enabled" : true, "id" : "default", "metadata" : { "name" : "default" }, "mode" : { "refresh" : 0.0, "size" : { "height" : 600, "width" : 800 } }, "pos" : { "x" : 0, "y" : 0 }, "primary" : true, "rotation" : 1 } ]"
Created attachment 83837 [details] Crash report from my last kscreen installation
Created attachment 83838 [details] Pasted from konsole when I ran "kded4"
Thanks for the update.
We don't maintain Plasma 4 anymore, please try Plasma 5 and let us know in case the bug persists.