diff -up xinit-1.3.4/startx.cpp~ xinit-1.3.4/startx.cpp
--- xinit-1.3.4/startx.cpp~	2015-03-18 12:13:11.000000000 +0100
+++ xinit-1.3.4/startx.cpp	2015-03-18 12:49:49.445624223 +0100
@@ -140,8 +140,10 @@
         have_vtarg="yes"
     fi
 done
-if [ "$have_vtarg" = "no" ]; then
+if [ "$have_vtarg" = "no" -a x"$vtarg" != x ]; then
     serverargs="$serverargs $vtarg"
+    XCOMM Fedora specific mod to make X run as non root
+    export XORG_RUN_AS_USER_OK=1
 fi
 
 serverargs="$serverargs $listenarg"