Cursor is moving, but i'm not able to access any application after log in into kde, basically i'm using kde plasma desktop over Unity. after changing few settings like installing some splash screen theme, and using 4 virtual desktop, then i restart my kde and log in, after log in successfully home screen appear cursor is moving but not a single application is work. Reproducible: Always
I would recommend posting support questions on the Forum or the kde@mail.kde.org user support mailing list.
This wasn't a supported setup, and Unity is obsolete and no longer shipped in Ubuntu, so I'm guessing it's not happening more.