I finally solved this issue with renaming plasmashellrc and plasma-org.kde.plasma.desktop-appletsrc Now all my 2 monitors are working again.
I attached the 2 files here. Maybe you Kubuntu.guys find something wrong. ** Attachment added: "plasmashellrc_bak" https://bugs.launchpad.net/ubuntu/+source/plasma-workspace/+bug/2083596/+attachment/5827779/+files/plasmashellrc_bak -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to plasma-workspace in Ubuntu. https://bugs.launchpad.net/bugs/2083596 Title: starting with 2 monitors or plugging in a second monitor crashes plasmashell To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plasma-workspace/+bug/2083596/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
