fix issues with reverse prime and present.

0001-present-fail-flipping-if-we-have-any-slave-outputs.patch

@@ -0,0 +1,41 @@
+From b0c7318ecc3e3817f8cf3519d229640a1ff73712 Mon Sep 17 00:00:00 2001
+From: Dave Airlie <airlied@gmail.com>
+Date: Tue, 9 Feb 2016 16:46:52 +1000
+Subject: [PATCH] present: fail flipping if we have any slave outputs.
+
+Due to the way present currently works, we don't ever
+check with the secondary adapters if we can flip at all.
+
+We shouldn't flip if the secondary adapters are attached
+to the pixmap currently, however using the current check_flip
+callback isn't possible as it passes the Window to the driver
+(something we shouldn't be doing), so the slave driver can never
+get it's own screen ptr back.
+
+For now to fix the problem just block flips if we have any
+slaves configured. We can fix the ABI up later, but this
+fix can be backported to stable.
+
+Signed-off-by: Dave Airlie <airlied@redhat.com>
+---
+ present/present.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/present/present.c b/present/present.c
+index 8cf3b6f..cb3c7ea 100644
+--- a/present/present.c
++++ b/present/present.c
+@@ -122,6 +122,10 @@ present_check_flip(RRCrtcPtr    crtc,
+     if (!screen_priv->info->flip)
+         return FALSE;
+ 
++    /* Fail to flip if we have slave outputs */
++    if (!xorg_list_is_empty(&screen->output_slave_list))
++        return FALSE;
++
+     /* Make sure the window hasn't been redirected with Composite */
+     window_pixmap = screen->GetWindowPixmap(window);
+     if (window_pixmap != screen->GetScreenPixmap(screen) &&
+-- 
+2.5.0
+

xorg-x11-server.spec

@@ -45,7 +45,7 @@
 Summary:   X.Org X11 X server
 Name:      xorg-x11-server
 Version:   1.18.1
-Release:   1%{?gitdate:.%{gitdate}}%{dist}
+Release:   2%{?gitdate:.%{gitdate}}%{dist}
 URL:       http://www.x.org
 License:   MIT
 Group:     User Interface/X
@@ -91,6 +91,8 @@ Patch7027: xserver-autobind-hotplug.patch
 # submitted: http://lists.x.org/archives/xorg-devel/2013-October/037996.html
 Patch9100: exa-only-draw-valid-trapezoids.patch
 
+Patch9101: 0001-present-fail-flipping-if-we-have-any-slave-outputs.patch
+
 # because the display-managers are not ready yet, do not upstream
 Patch10000: 0001-Fedora-hack-Make-the-suid-root-wrapper-always-start-.patch
 
@@ -630,6 +632,9 @@ find %{inst_srcdir}/hw/xfree86 -name \*.c -delete
 
 
 %changelog
+* Mon Feb 15 2016 Dave Airlie <airlied@redhat.com> 1.18.1-2
+- fix issues with reverse prime and present.
+
 * Mon Feb 08 2016 Adam Jackson <ajax@redhat.com> 1.18.1-1
 - xserver 1.18.1