Program received signal SIGSEGV, Segmentation fault. xcb_get_setup (c=0x0) at xcb_conn.c:291 291 if(c->has_error) (gdb) bt #0 xcb_get_setup (c=0x0) at xcb_conn.c:291 #1 0x00007fffd0c76370 in KWin::defaultScreen () at /home/sho/devel/src/kde/workspace/kwin/libkwineffects/kwinglobals.h:174 #2 0x00007fffd0c6d972 in KWin::X11Cursor::createCursor (this=0xfa0cc0, name=...) at /home/sho/devel/src/kde/workspace/kwin/kcmkwin/kwinrules/../../cursor.cpp:358 #3 0x00007fffd0c6d93f in KWin::X11Cursor::getX11Cursor (this=0xfa0cc0, name=...) at /home/sho/devel/src/kde/workspace/kwin/kcmkwin/kwinrules/../../cursor.cpp:348 #4 0x00007fffd0c6d8ae in KWin::X11Cursor::getX11Cursor (this=0xfa0cc0, shape=Qt::CrossCursor) at /home/sho/devel/src/kde/workspace/kwin/kcmkwin/kwinrules/../../cursor.cpp:339 #5 0x00007fffd0c6cfbb in KWin::Cursor::x11Cursor (shape=Qt::CrossCursor) at /home/sho/devel/src/kde/workspace/kwin/kcmkwin/kwinrules/../../cursor.cpp:168 #6 0x00007fffd0c79c9e in KWin::DetectDialog::selectWindow (this=0xcb2630) at /home/sho/devel/src/kde/workspace/kwin/kcmkwin/kwinrules/detectwidget.cpp:186 #7 0x00007fffd0c7d1f4 in KWin::DetectDialog::qt_static_metacall (_o=0xcb2630, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xcbaaa0) at /home/sho/devel/build/kde/workspace/kwin/kcmkwin/kwinrules/moc_detectwidget.cpp:147 #8 0x00007ffff38d20c1 in QMetaCallEvent::placeMetaCall (this=0xf99860, object=0xcb2630) at kernel/qobject.cpp:485 #9 0x00007ffff38d318a in QObject::event (this=0xcb2630, e=0xf99860) at kernel/qobject.cpp:1245 #10 0x00007ffff49d137a in QWidget::event (this=0xcb2630, event=0xf99860) at kernel/qwidget.cpp:9099 #11 0x00007ffff49806bc in QApplicationPrivate::notify_helper (this=0x676c10, receiver=0xcb2630, e=0xf99860) at kernel/qapplication.cpp:3720 #12 0x00007ffff4980529 in QApplication::notify (this=0x7fffffffd330, receiver=0xcb2630, e=0xf99860) at kernel/qapplication.cpp:3685 #13 0x00007ffff3896772 in QCoreApplication::notifyInternal (this=0x7fffffffd330, Reproducible: Always
Says you lost the xcb connection. => https://git.reviewboard.kde.org/r/123025/ as well?
Maybe, I was running unpatched.
After you tried and ensure the patch is helpfull, i'll boldly advertise http://kde-look.org/content/show.php/Cursor+theme+"fixing"+script?content=161037 to complete your cursor theme(s)
I rather think it's a regression due to the changes around usage of QX11Info I pushed this week.
Git commit 305387ec3a12cbcc692a81fa8795a996702b32c5 by Martin Gräßlin. Committed on 20/03/2015 at 07:19. Pushed by graesslin into branch 'master'. [kcmkwin/rules] Set dynamic property for x11Connection and x11RootWindow Needed by kwinglobals which gets used internally through DetectWidget. M +5 -0 kcmkwin/kwinrules/kcm.cpp http://commits.kde.org/kwin/305387ec3a12cbcc692a81fa8795a996702b32c5