From bc1220ac154e42f3f927d3e0ff0be1807cc09b67 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Thu, 8 Nov 2018 17:52:08 +0100
Subject: multiplexer.c: clean display buffer when turning off display

---
 multiplexer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/multiplexer.c b/multiplexer.c
index 8483c2d..d0ae7c7 100644
--- a/multiplexer.c
+++ b/multiplexer.c
@@ -65,6 +65,7 @@ void *put_on_display(void *param)
     if (!display_data -> should_be_on) {
       if (display_data -> is_on) {
         turn_off_display();
+        memset(display_data -> buf, 0, sizeof(display_data -> buf));
         display_data -> is_on = 0;
       }
       sleep(1);
-- 
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