This keeps happening for me on 15.04 (upgrade from 14.10) and on 15.10 (clean install).
When it happened while searching for an answer (firefox still works even though plasma is crashed and black) I run the above (#24) three commands and plasma was restored and worked fine. I only had to close the terminal I run them since plasma will keep printing them. I now have put those 3 commands inside a shell script in order to easily restore plasma when it crashes, until we have a bug fix for this. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1448102 Title: Kubuntu 15.04: plasmashell crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plasma-workspace/+bug/1448102/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs