Public bug reported: fenris@macbuntu:~$ apt-cache policy kwin kwin: Installed: (none) Candidate: 4:5.2.1-0ubuntu1 Version table: 4:5.2.1-0ubuntu1 0 500 http://us.archive.ubuntu.com/ubuntu/ vivid/universe i386 Packages 4:5.1.1-0ubuntu1~ubuntu14.10~ppa1 0 100 /var/lib/dpkg/status fenris@macbuntu:~$ sudo apt-get install kwin Reading package lists... Done Building dependency tree Reading state information... Done The following package was automatically installed and is no longer required: libindicate-qt1 Use 'apt-get autoremove' to remove it. The following extra packages will be installed: libkwin4-effect-builtins1 libkwineffects6 libkwinglutils6 libkwinxrenderutils6 libxcb-xtest0 Suggested packages: kwin-addons Recommended packages: kwin-decoration-oxygen The following NEW packages will be installed: kwin libkwin4-effect-builtins1 libkwineffects6 libkwinglutils6 libkwinxrenderutils6 libxcb-xtest0 0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded. Need to get 1,894 kB/1,982 kB of archives. After this operation, 9,686 kB of additional disk space will be used. Do you want to continue? [Y/n]
After installed the kwin, i can peacefully login to KDE Plasma 5.2 ** Affects: kwin (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1427541 Title: kwin is missing / removed after upgrade from kubuntu 14.10 to 15.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kwin/+bug/1427541/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs