I am running Kate (version 15.08.2) in Ubuntu 15.10 on a laptop (System76 Lemur). Whenever I plug in or unplug my external monitor (through the HDMI port), Kate segfaults and crashes. Here is a log of what happens when I start kate up from a terminal and then plug in my monitor. Let me know if there's any other information I can provide that would be useful. jon@jon-s76:~$ kate Attempted to re-run an already running session. uint DBusMenuExporterDBus::GetLayout(int, int, const QStringList&, DBusMenuLayoutItem&): Condition failed: menu Segmentation fault
That is a known problem of Qt, unfixable for us :/ https://bugreports.qt.io/browse/QTBUG-42985 It should/could be fixed nowadays.