2 files changed, 13 insertions, 2 deletions
diff --git a/src/gpm-common.c b/src/gpm-common.c
index f71aada..c0c3c94 100644
--- a/src/gpm-common.c
+++ b/src/gpm-common.c
@@ -91,6 +91,9 @@ gpm_get_timestring (guint time_secs)
 guint
 gpm_discrete_from_percent (guint percentage, guint levels)
 {
+ /* for levels < 10 min value is 0 */
+ gint factor;
+ factor = levels < 10 ? 0 : 1;
 /* check we are in range */
 if (percentage > 100)
 return levels;
@@ -98,7 +101,7 @@ gpm_discrete_from_percent (guint percentage, guint levels)
 g_warning ("levels is 0!");
 return 0;
 }
- return (guint) ((((gfloat) percentage * (gfloat) (levels - 1)) / 100.0f) + 0.5f);
+ return (guint) ((((gfloat) percentage * (gfloat) (levels - factor)) / 100.0f) + 0.5f);
 }
 
 /**
@@ -113,6 +116,9 @@ gpm_discrete_from_percent (guint percentage, guint levels)
 guint
 gpm_discrete_to_percent (guint discrete, guint levels)
 {
+ /* for levels < 10 min value is 0 */
+ gint factor;
+ factor = levels < 10 ? 0 : 1;
 /* check we are in range */
 if (discrete > levels)
 return 100;
@@ -120,7 +126,7 @@ gpm_discrete_to_percent (guint discrete, guint levels)
 g_warning ("levels is 0!");
 return 0;
 }
- return (guint) (((gfloat) discrete * (100.0f / (gfloat) (levels - 1))) + 0.5f);
+ return (guint) (((gfloat) discrete * (100.0f / (gfloat) (levels - factor))) + 0.5f);
 }
 
 
diff --git a/src/gpm-kbd-backlight.c b/src/gpm-kbd-backlight.c
index b3091ac..4221004 100644
--- a/src/gpm-kbd-backlight.c
+++ b/src/gpm-kbd-backlight.c
@@ -121,6 +121,11 @@ gpm_kbd_backlight_set (GpmKbdBacklight *backlight,
 goal = gpm_discrete_from_percent (percentage, backlight->priv->max_brightness);
 scale = percentage > backlight->priv->brightness_percent ? 1 : -1;
 
+ /* if percentage change too small force next value */
+ if (goal == backlight->priv->brightness) {
+ goal += percentage == backlight->priv->brightness_percent ? 0 : scale;
+ }
+
 /* step loop down by 1 for a dimming effect */
 while (backlight->priv->brightness != goal) {
 backlight->priv->brightness += scale;