From 56ee01bc8c414521de7ebc5097185faab09abb1d Mon Sep 17 00:00:00 2001
From: Alexander Boettcher <alexander.boettcher@genode-labs.com>
Date: Fri, 26 Jul 2024 14:54:45 +0200
Subject: [PATCH] vbox6: clear screen on guest triggered blanking

An invalid bitmap is exactly once set during blanking, use this as hint
to clear the GUI content. Same as done in vbox5.

Fixes #5263
---
 repos/ports/src/virtualbox6/include/fb.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/repos/ports/src/virtualbox6/include/fb.h b/repos/ports/src/virtualbox6/include/fb.h
index 6fba107e33..1ef22a3bb3 100644
--- a/repos/ports/src/virtualbox6/include/fb.h
+++ b/repos/ports/src/virtualbox6/include/fb.h
@@ -214,6 +214,7 @@ class Genodefb :
 			Lock();
 
 			if (_display_bitmap.isNull()) {
+				_clear_screen();
 				Unlock();
 				return S_OK;
 			}