Hi, Here is another patch for the column width issue.
--- synaptic-0.82.orig/gtk/gtkbuilder/window_logview.ui 2015-10-16 18:53:01.000000000 +0800 +++ synaptic-0.82/gtk/gtkbuilder/window_logview.ui 2015-12-01 11:13:17.107401120 +0800 @@ -73,9 +73,9 @@ <property name="visible">True</property> <property name="can_focus">True</property> <property name="shadow_type">in</property> + <property name="request_width">200</property> <child> <object class="GtkTreeView" id="treeview_dates"> - <property name="width_request">200</property> <property name="visible">True</property> <property name="can_focus">True</property> <property name="headers_visible">False</property>