Index: /trunk/src/VBox/Additions/x11/vboxvideo/README.testing
===================================================================
--- /trunk/src/VBox/Additions/x11/vboxvideo/README.testing	(revision 54161)
+++ /trunk/src/VBox/Additions/x11/vboxvideo/README.testing	(revision 54161)
@@ -0,0 +1,19 @@
+This file contains some notes about things to try out to give the X.Org video
+driver a reasonably thorough test.  We will add cases of things which have been
+known to fail in the past to this file as we discover them.
+
+ * Test XFree86 guests (CentOS 3), early X.Org (CentOS 5) and recent
+   (CentOS 6 and 7, current Ubuntu/Fedora).  Test Solaris guests (10 and 11?).
+ * Dynamic resizing with and without VBoxClient running.  The driver will
+   currently always use HGSMI for mode hints, but should check data sent by
+   VBoxClient.  On Solaris guests, dynamic resizing is only expected to
+   react immediately if VBoxClient and the kernel driver are running.
+ * Disabling and enabling virtual screens.
+ * Dynamic resizing with one of more virtual screens disabled.
+ * Test switching to virtual terminals and back from windowed, full screen and
+   seamless modes.
+ * Test enabling and disabling guest screens from the host.
+ * execute "xprop -root | grep VBOX" after resizing a screen: VBOX_SIZE_HINTS
+   should be set, and VBOX_SIZE_HINTS_MISMATCH should equal 0.
+ * Shutting down and re-starting a virtual machine should restore the last size
+   for all monitors (note: currently only after log-in).