Same trouble here. Drag and drop cells and sheets freezes kwin completely, switching to fbcon and back again is a workaround. Disabling hardware acceleration made no difference.
Linux 3.4.66-gentoo #1 SMP Qt: 4.8.5 KDE Development Platform: 4.11.2 KWin: 4.11.2 LibreOffice 4.1.2.3 410m0(Build:3) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1236012 Title: [KUBUNTU] Calc freezes screen when using drag-and-drop on cells To manage notifications about this bug go to: https://bugs.launchpad.net/df-libreoffice/+bug/1236012/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs