Created attachment 3128 xkb-plugin gtk_combo_box fix I setup my keyboard layouts and layout change keyboard shortcut, but I leave blank the keyboard model - it always worked but since last update I've found this to crash on my ArchLinux. I did a quick GDB trace and I've found where is the problem. It was trying to get the value from the keyboard model combo box without checking for a valid iterator. My guess is that this is partly related to changes in newer gtk2 versions (2.20.1 on my arch box) I'm attaching the patch itself.
Marking this as duplicate - havent grepped for all regarding crash issues. *** This bug has been marked as a duplicate of bug 6477 ***