xorg-x11-server/u_Panning-Set-panning-state-in-xf86RandR12ScreenSetSize.patch

From: Egbert Eich <eich@suse.de>
Date: Fri Jan 15 16:52:18 2016 +0100
Subject: [PATCH]Panning: Set panning state in xf86RandR12ScreenSetSize()
Patch-mainline: to be upstreamed

References: boo#771521
Signed-off-by: Egbert Eich <eich@suse.com>

Right after verifying the panning area the per-crtc panning state should
be set.
This fixes panning when set in the configuration.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=771521
Signed-off-by: Egbert Eich <eich@suse.de>
---
 hw/xfree86/modes/xf86RandR12.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/xfree86/modes/xf86RandR12.c b/hw/xfree86/modes/xf86RandR12.c
index eae7016..9f444dd 100644
--- a/hw/xfree86/modes/xf86RandR12.c
+++ b/hw/xfree86/modes/xf86RandR12.c
@@ -681,6 +681,7 @@ xf86RandR12ScreenSetSize(ScreenPtr pScreen,
     WindowPtr pRoot = pScreen->root;
     PixmapPtr pScrnPix;
     Bool ret = FALSE;
+    Bool panning = FALSE;
     int c;
 
     if (randrp->virtualX == -1 || randrp->virtualY == -1) {
@@ -709,6 +710,7 @@ xf86RandR12ScreenSetSize(ScreenPtr pScreen,
             if (crtc->panningTrackingArea.y2 > crtc->panningTrackingArea.y1)
                 crtc->panningTrackingArea.y2 += height - pScreen->height;
             xf86RandR13VerifyPanningArea(crtc, width, height);
+            panning = panning ? TRUE : PANNING_ENABLED (crtc);
             xf86RandR13Pan(crtc, randrp->pointerX, randrp->pointerY);
         }
     }
@@ -718,6 +720,7 @@ xf86RandR12ScreenSetSize(ScreenPtr pScreen,
     pScreen->height = pScrnPix->drawable.height = height;
     randrp->mmWidth = pScreen->mmWidth = mmWidth;
     randrp->mmHeight = pScreen->mmHeight = mmHeight;
+    randrp->panning = panning;
 
     xf86SetViewport(pScreen, pScreen->width - 1, pScreen->height - 1);
     xf86SetViewport(pScreen, 0, 0);