I tried to reproduce this bug with vlc, calibre and anki but could not. Does it still happen for any of you with libqtgui4 version 4:4.7.4-0ubuntu2? If so, can you try this? - make a copy of the config files (.anki folder for anki, .config/vlc/vlc-qt-interface.conf) - delete them - check if it "fixes" the bug - if it does, attach the config files to this report
** Changed in: qt4-x11 (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/805303 Title: Gtk-CRITICAL **: IA__gtk_widget_style_get: assertion `GTK_IS_WIDGET (widget)' failed with the default qt4 gui To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/805303/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs