From a7d7659a930bb73ec34b00c492074fbf812377b2 Mon Sep 17 00:00:00 2001
From: emersion <contact@emersion.fr>
Date: Wed, 18 Oct 2017 20:13:59 +0200
Subject: [PATCH] Fix render errors with gnome-terminal

---
 types/wlr_output.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/types/wlr_output.c b/types/wlr_output.c
index 4c9814ef..eb969b9a 100644
--- a/types/wlr_output.c
+++ b/types/wlr_output.c
@@ -361,7 +361,9 @@ void wlr_output_swap_buffers(struct wlr_output *output) {
 			renderer = output->cursor.surface->renderer;
 		}
 
-		if (texture && renderer) {
+		// We check texture->valid because some clients set a cursor surface
+		// with a NULL buffer to hide it
+		if (renderer && texture && texture->valid) {
 			float matrix[16];
 			wlr_texture_get_matrix(texture, &matrix, &output->transform_matrix,
 				output->cursor.x, output->cursor.y);