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From 3b7c9b7458976ea7f1e57796149d4ed4c56d9225 Mon Sep 17 00:00:00 2001
From: Michael Tretter <m.tretter@pengutronix.de>
Date: Thu, 23 Aug 2018 16:58:47 +0200
Subject: [PATCH] compositor: do not request repaint in output_enable

When enabling a weston_output, the compositor damages the entire output,
to ensure that the entire output is redrawn. However, this triggers a
repaint, which might happen before anything is actually drawn. The
result is a black frame before the shell is displayed.

Damage the entire output region, but do not trigger the repaint when
enabling a weston_output.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
---
 libweston/compositor.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libweston/compositor.c b/libweston/compositor.c
index 6e965372..34d8483c 100644
--- a/libweston/compositor.c
+++ b/libweston/compositor.c
@@ -6471,7 +6471,9 @@ weston_output_enable(struct weston_output *output)
 	weston_output_init_zoom(output);
 
 	weston_output_init_geometry(output, x, y);
-	weston_output_damage(output);
+	pixman_region32_union(&c->primary_plane.damage,
+			      &c->primary_plane.damage,
+			      &output->region);
 
 	wl_list_init(&output->animation_list);
 	wl_list_init(&output->feedback_list);
-- 
2.25.1