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--- src/xfpm-backlight-helper.c.orig 2020-01-26 23:15:39 UTC
+++ src/xfpm-backlight-helper.c
@@ -49,6 +49,8 @@
#define EXIT_CODE_INVALID_USER 4
#define EXIT_CODE_NO_BRIGHTNESS_SWITCH 5
+#define MAX_DEVICE_NUM 8
+
#if !defined(BACKEND_TYPE_FREEBSD)
#define BACKLIGHT_SYSFS_LOCATION "/sys/class/backlight"
#define BRIGHTNESS_SWITCH_LOCATION "/sys/module/video/parameters/brightness_switch_enabled"
@@ -204,19 +206,23 @@ backlight_helper_get_device (void)
/* devices in priority order */
gchar *types[] = { "lcd", "crt", "out", "ext", "tv", NULL };
gchar *device = NULL;
- gint i;
+ gint i, j;
- device = (gchar *) g_malloc (sizeof (gchar));
+ device = (gchar *) g_malloc (sizeof (gchar) * 8);
for (i = 0; types[i] != NULL; i++) {
- g_snprintf (device, (gulong) strlen (types[i]), "%s0", types[i]);
+ for (j = 0; j < MAX_DEVICE_NUM; j++) {
+ g_snprintf (device, 8, "%s%i", types[i], j);
- /* stop, when first device is found */
- if (acpi_video_is_enabled (device))
- break;
+ /* stop, when first device is found */
+ if (acpi_video_is_enabled (device))
+ return (device);
+ }
}
- return device;
+ g_free (device);
+
+ return (NULL);
}
/*
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