multiplexer.c: idle if nothing is to be displayed

1 files changed, 5 insertions, 4 deletions

diff --git a/multiplexer.c b/multiplexer.c
index b06b5a0..3465d1f 100644
--- a/multiplexer.c
+++ b/multiplexer.c
@@ -63,13 +63,14 @@ void *put_on_display(void *param)
 #endif // SKIP_GPIO
     display_data -> is_buf = display_data -> should_buf;
     if (!display_data -> should_be_on) {
-      if (!display_data -> is_on)
-        sleep(1);
-      else
+      if (display_data -> is_on) {
         turn_off_display();
+        display_data -> is_on = 0;
+      }
+      sleep(1);
       continue;
     }
-    display_data -> is_on = display_data -> should_be_on;
+    display_data -> is_on = 1;
 #ifdef SKIP_GPIO
 #ifndef SILENT
     printf("=\n");