Ok, here's a solution for you people. The bug vanished here after removing ~/.config/Trolltech.conf . Hence this seems to be related to a corrupted config file (mayber the file format has changed over time).
Re-creating the file with qtconfig-qt4 and setting everything exactly as it used to be did not cause the bug to reappear. Please confirm. Unfortunately, I have deleted my old Trolltech.conf. May somebody do a diff between the corrupted version of Trolltech.conf and a clean version of it, so that we can locate the bug? Maybe related to bug #161891 . -- lyx assertion failed in QList<T>::at: when saving a file https://bugs.launchpad.net/bugs/197950 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs