From cc83600d4890562fa446068f193a225d6649379a Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Date: Fri, 11 Jan 2013 10:51:49 +0000
Subject: [PATCH] backport backlight fix

SVN revision: 82627
---
 ChangeLog             | 4 ++++
 NEWS                  | 1 +
 src/bin/e_backlight.c | 9 ++++++++-
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 4e871e4a7..6940842ac 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2013-01-11 Mike Blumenkrantz
+
+        * fixed bug where backlight settings would try to update dummy backlight devices
+
 2013-01-10 Carsten Haitzler
 
         * fixed bug where starting with a nonexistent config could cause a crash instead of simply restarting
diff --git a/NEWS b/NEWS
index 07ac94806..1bf05acf5 100644
--- a/NEWS
+++ b/NEWS
@@ -29,3 +29,4 @@ Fixes:
     * fixed bug where internal dialogs would not redraw after unfullscreening
     * fixed bug where starting with a nonexistent config could cause a crash instead of simply restarting
     * fixed window border hide bug where after iconification hides leave ghosts
+    * fixed bug where backlight settings would try to update dummy backlight devices
diff --git a/src/bin/e_backlight.c b/src/bin/e_backlight.c
index 60933f60c..3db2a8e11 100644
--- a/src/bin/e_backlight.c
+++ b/src/bin/e_backlight.c
@@ -507,12 +507,19 @@ _bl_sys_level_get(void)
 
    maxval = atoi(str);
    eina_stringshare_del(str);
-   if (maxval <= 0) maxval = 255;
+   if (maxval < 0) maxval = 255;
    str = eeze_udev_syspath_get_sysattr(bl_sysval, "brightness");
    if (!str) return;
 
    val = atoi(str);
    eina_stringshare_del(str);
+   if ((!maxval) && (!val))
+     {
+        bl_val = 0;
+        sysmode = MODE_NONE;
+        return;
+     }
+   if (!maxval) maxval = 255;
    if ((val >= 0) && (val <= maxval))
      bl_val = (double)val / (double)maxval;
 //   fprintf(stderr, "GET: %i/%i (%1.3f)\n", val, maxval, bl_val);