KWin is not responsible for restarting applications. This bug was *only* about not restoring window manager attributes (position, virtual desktop, etc.) on session restorage.
There're fundamental bugs in Qt5 that prevent (both, correct and entire) restoring of Qt5 applications, see * https://codereview.qt-project.org/#/c/113806/ * https://codereview.qt-project.org/#/c/113901/ * http://marc.info/?l=kde-core-devel&m=144832700109449&w=1 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtbase-opensource-src in Ubuntu. https://bugs.launchpad.net/bugs/1446865 Title: KDE5/Qt5 does not support session restoration Status in KDE Base Workspace: Fix Released Status in Qt: New Status in plasma-workspace package in Ubuntu: Confirmed Status in qtbase-opensource-src package in Ubuntu: New Bug description: KDE5/Qt5 does not support proper session restoration. ProblemType: Bug DistroRelease: Ubuntu 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/kdebase-workspace/+bug/1446865/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp