--- unity8.conf.orig	2015-09-04 12:30:52.211491185 +0000
+++ unity8.conf	2015-09-04 12:33:17.611491192 +0000
@@ -31,6 +31,9 @@
         # Point all future jobs in this session to our Mir socket instead of
         # unity-system-compositor's socket.
         initctl set-env --global MIR_SOCKET=$MIR_SERVER_FILE
+
+        initctl set-env --global QT_LOGGING_RULES="qtmir.mir.input.debug=true"
+
         gdbus call --session --dest org.freedesktop.DBus --object-path /org/freedesktop/DBus --method org.freedesktop.DBus.UpdateActivationEnvironment "@a{ss} {'MIR_SOCKET': '$MIR_SERVER_FILE'}"
     fi