From 327df450ffcf5bda5b4254db0208d355860d1010 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michel=20D=C3=A4nzer?= <mdaenzer@redhat.com>
Date: Fri, 22 Nov 2019 17:51:22 +0100
Subject: [PATCH] xfree86/modes: Call xf86RotateRedisplay from xf86CrtcRotate

If a new rotate buffer was allocated. This makes sure the new buffer
has valid transformed contents when it starts being displayed.

Reviewed-by: Adam Jackson <ajax@redhat.com>
---
 hw/xfree86/modes/xf86Rotate.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/xfree86/modes/xf86Rotate.c b/hw/xfree86/modes/xf86Rotate.c
index a8f1e615c..05944cfcb 100644
--- a/hw/xfree86/modes/xf86Rotate.c
+++ b/hw/xfree86/modes/xf86Rotate.c
@@ -485,6 +485,9 @@ xf86CrtcRotate(xf86CrtcPtr crtc)
 
     if (damage)
         xf86CrtcDamageShadow(crtc);
+    else if (crtc->rotatedData && !crtc->rotatedPixmap)
+        /* Make sure the new rotate buffer has valid transformed contents */
+        xf86RotateRedisplay(pScreen);
 
     /* All done */
     return TRUE;