put in a X.org config snippet to set the driver to fbdev on arm devices

fedora-arm-xbase.ks

@@ -5,3 +5,16 @@
 @multimedia
 @printing
 %end
+
+%post
+# X on arm does not detect the driver needed correctly so we need a snippet to set something
+# using fbdev as the lowest common denominator.
+
+cat > /etc/X11/xorg.conf.d/fbdev.conf <<EOF
+Section "Device"
+    Identifier  "Display"
+    Driver      "fbdev"
+EndSection
+EOF
+
+%end