Bad news: the bug just reappeared on my machine. Deleting Trolltech.conf solved the bug again.
qt4 modifies Trolltech.conf when lyx is running, and hence can cause the bug to reappear. Probably a qt4 bug, but this might still be due to an improper use of qt4 by Lyx. So the bug is NOT solved and only a patch will stop the annoyance. I've attached the result of $ diff Trolltech.conf.good Trolltech.conf.bad ** Attachment added: "diff Trolltech.conf.good Trolltech.conf.bad" http://launchpadlibrarian.net/14188026/Trolltech.conf.diff -- 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