Reverses upstream patch: serialcon: Don't open a console with name=None
Git: ce94126b707f157d88de113a8c591e628d55db63
bnc#780859

Index: virt-manager-0.10.1/virtManager/serialcon.py
===================================================================
--- virt-manager-0.10.1.orig/virtManager/serialcon.py
+++ virt-manager-0.10.1/virtManager/serialcon.py
@@ -207,8 +207,9 @@ class LibvirtConsoleConnection(ConsoleCo
         name = dev and dev.alias.name or None
         logging.debug("Opening console stream for dev=%s alias=%s",
                       dev, name)
-        if not name:
-            raise RuntimeError(_("Cannot open a device with no alias name"))
+        # bnc#780859
+        #if not name:
+        #    raise RuntimeError(_("Cannot open a device with no alias name"))
 
         stream = self.conn.get_backend().newStream(libvirt.VIR_STREAM_NONBLOCK)
         self.vm.open_console(name, stream)