Package: okular Version: 4:15.08.3-1 When running from a screen(1) session that was created before logging out and logging in again, so various envvars are wrong, okular crashes and presents the bug-reporting dialog instead of presenting to the user the more informative "Session bus not found" that can be found in the backtrace:
Application: Okular (okular), signal: Aborted Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [KCrash Handler] #6 0x00007fc276f5b657 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55 #7 0x00007fc276f5ca2a in __GI_abort () at abort.c:89 #8 0x00007fc277939f35 in qt_message_output (msgType=<optimized out>, buf=0x14e5918 "okular(32094)/kdeui (kdelibs): Session bus not found \nTo circumvent this problem try the following command (with Linux and bash) \nexport $(dbus-launch) ") at global/qglobal.cpp:2447 #9 0x00007fc27911761c in QDebug::~QDebug (this=0x7ffc45ad6ff0, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qdebug.h:85 #10 0x00007fc2791fd83a in KApplicationPrivate::init (this=0x144d930, GUIenabled=GUIenabled@entry=true) at ../../kdeui/kernel/kapplication.cpp:516 #11 0x00007fc2791fe232 in KApplication::KApplication (this=0x7ffc45ad7230, GUIenabled=true) at ../../kdeui/kernel/kapplication.cpp:352 #12 0x0000000000409840 in main (argc=2, argv=0x7ffc45ad7348) at ../../shell/main.cpp:37 (fixing the envvars to match current session is sufficient to get it working again)