From 9fe9b6e4ef669b192ee349e3290db5d2aeea273c Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Mon, 2 Feb 2009 10:20:13 +1000
Subject: [PATCH] mi: don't call UpdateSpriteForScreen if we have Xinerama
 enabled. #18668

In Xinerama all windows hang off the first root window. Crossing the screens
must not reset the spriteTrace, otherwise picking fails and events are sent to
the root window.

X.Org Bug 18668 <http://bugs.freedesktop.org/show_bug.cgi?id=18668>

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---
 mi/mipointer.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/mi/mipointer.c b/mi/mipointer.c
index d5202810a..e3a465615 100644
--- a/mi/mipointer.c
+++ b/mi/mipointer.c
@@ -332,7 +332,14 @@ miPointerWarpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
 	pPointer->pScreen = pScreen;
     }
 
-    if (changedScreen)
+    /* Don't call USFS if we use Xinerama, otherwise the root window is
+     * updated to the second screen, and we never receive any events.
+     * (FDO bug #18668) */
+    if (changedScreen
+#ifdef PANORAMIX
+            && noPanoramiXExtension
+#endif
+       )
         UpdateSpriteForScreen (pDev, pScreen) ;
 }