Sorry to post here, but filling a bug @ bugzilla is impossible. There seems to be a bug there and it was impossible for me to log with the newly created account. OS : Archlinux x86_64 libvirt 1.2.7-1 libvirt-glib 0.1.8-2 libvirt-python 1.2.7-1 pygtk 2.24.0-4 gtk2 2.24.24-1 gtk2-perl 1.2492-1 gtk3 3.12.2-1 python 3.4.1-1 python2 2.7.8-1 ISSUE : virt-manager GUI. Create a mew machine. > Display > Spice server Returns error Error refreshing hardware page: Must be string, not TreeModelRow Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/details.py", line 1197, in hw_selected self.refresh_graphics_page() File "/usr/share/virt-manager/virtManager/details.py", line 2755, in refresh_graphics_page title = self.gfxdetails.set_dev(gfx) File "/usr/share/virt-manager/virtManager/gfxdetails.py", line 197, in set_dev uiutil.set_combo_entry(self.widget("graphics-type"), gtype, 0) File "/usr/share/virt-manager/virtManager/uiutil.py", line 140, in set_combo_entry combo.get_child().set_text(value or "") TypeError: Must be string, not TreeModelRow