This problem happens with transmission-gtk package. A workaround is to use transmission-qt package instead of transmission-gtk.
With transmission-gtk, when you open the torrent's properties panel, apart from scramble the texts, buttons, etc, there are GTK related errors spammed every few milliseconds (can be seen with journalctl). This is an example of these errors: may 01 07:17:38 fpgrpi transmission-gt[9098]: invalid unclassed pointer in cast to 'GtkLabel' may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_label_get_text: assertion 'GTK_IS_LABEL (label)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_label_set_text: assertion 'GTK_IS_LABEL (label)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: invalid unclassed pointer in cast to 'GtkTreeModel' may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_tree_model_iter_nth_child: assertion 'GTK_IS_TREE_MODEL (tree_model)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_tree_model_iter_nth_child: assertion 'GTK_IS_TREE_MODEL (tree_model)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_widget_set_visible: assertion 'GTK_IS_WIDGET (widget)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: invalid unclassed pointer in cast to 'GtkToggleButton' may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_toggle_button_get_active: assertion 'GTK_IS_TOGGLE_BUTTON (toggle_button)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: instance with invalid (NULL) class pointer may 01 07:17:38 fpgrpi transmission-gt[9098]: g_signal_handler_block: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_toggle_button_set_active: assertion 'GTK_IS_TOGGLE_BUTTON (toggle_button)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: instance with invalid (NULL) class pointer may 01 07:17:38 fpgrpi transmission-gt[9098]: g_signal_handler_unblock: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: invalid unclassed pointer in cast to 'GtkToggleButton' may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_toggle_button_get_active: assertion 'GTK_IS_TOGGLE_BUTTON (toggle_button)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: invalid unclassed pointer in cast to 'GtkSpinButton' may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_spin_button_get_value_as_int: assertion 'GTK_IS_SPIN_BUTTON (spin_button)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: instance with invalid (NULL) class pointer may 01 07:17:38 fpgrpi transmission-gt[9098]: g_signal_handler_block: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_spin_button_set_value: assertion 'GTK_IS_SPIN_BUTTON (spin_button)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: instance with invalid (NULL) class pointer may 01 07:17:38 fpgrpi transmission-gt[9098]: g_signal_handler_unblock: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: invalid unclassed pointer in cast to 'GtkToggleButton' may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_toggle_button_get_active: assertion 'GTK_IS_TOGGLE_BUTTON (toggle_button)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: invalid unclassed pointer in cast to 'GtkSpinButton' may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_spin_button_get_value_as_int: assertion 'GTK_IS_SPIN_BUTTON (spin_button)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: instance with invalid (NULL) class pointer may 01 07:17:38 fpgrpi transmission-gt[9098]: g_signal_handler_block: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_spin_button_set_value: assertion 'GTK_IS_SPIN_BUTTON (spin_button)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: instance with invalid (NULL) class pointer may 01 07:17:38 fpgrpi transmission-gt[9098]: g_signal_handler_unblock: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: instance with invalid (NULL) class pointer may 01 07:17:38 fpgrpi transmission-gt[9098]: g_signal_handler_block: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: invalid unclassed pointer in cast to 'GtkComboBox' may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_combo_box_get_model: assertion 'GTK_IS_COMBO_BOX (combo_box)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_combo_box_get_active_iter: assertion 'GTK_IS_COMBO_BOX (combo_box)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: gtk_tree_model_iter_nth_child: assertion 'GTK_IS_TREE_MODEL (tree_model)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: instance with invalid (NULL) class pointer may 01 07:17:38 fpgrpi transmission-gt[9098]: g_signal_handler_unblock: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: instance with invalid (NULL) class pointer may 01 07:17:38 fpgrpi transmission-gt[9098]: g_signal_handler_block: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed may 01 07:17:38 fpgrpi transmission-gt[9098]: invalid unclassed pointer in cast to 'GtkComboBox' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1969315 Title: text in torrent info tabs change after opening it to gibberish To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/transmission/+bug/1969315/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
