From fdf8a4c57c3997f95ea0571b627f3c5a31dfe7b1 Mon Sep 17 00:00:00 2001
From: Mart <mart@martlubbers.net>
Date: Thu, 1 Oct 2020 09:55:08 +0000
Subject: [PATCH] set the perceived to zero when the screen is off

This fixes the issue that you cannot take the 10-log of zero
---
 xbacklight | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xbacklight b/xbacklight
index 2cb0fa8..f1c2187 100755
--- a/xbacklight
+++ b/xbacklight
@@ -82,6 +82,8 @@ class LogController(RawController):
 
     @property
     def brightness(self):
+        if super().brightness == 0:
+            return 0
         return log10(super().brightness)/log10(super().max_brightness)*self.max_brightness
 
     @brightness.setter
-- 
GitLab