Index: sources/gui/qml/pages/settings/SettingsVolumeBrightness.qml
===================================================================
diff -u -r642f08650a7a88ad6a2305fdea6bd18365aab5c7 -rf6b80a12cbbf42bea4448b9f8424350f5496d624
--- sources/gui/qml/pages/settings/SettingsVolumeBrightness.qml	(.../SettingsVolumeBrightness.qml)	(revision 642f08650a7a88ad6a2305fdea6bd18365aab5c7)
+++ sources/gui/qml/pages/settings/SettingsVolumeBrightness.qml	(.../SettingsVolumeBrightness.qml)	(revision f6b80a12cbbf42bea4448b9f8424350f5496d624)
@@ -49,11 +49,11 @@
             Slider { id : _brightness
                 anchors.verticalCenter: parent.verticalCenter
                 width   : 500
-                step    : 20    // no zero
-                minimum : 20    // 1
-                maximum : 100   // 10
+                step    : 1    // no zero
+                minimum : 1    // 1
+                maximum : 5   // 10
                 ticks   : true
-                unit    : qsTr("%")
+                unit    : ""
                 onReleased  : vDevice.brightness = _brightness.value
                 Connections { target: vDevice
                     // in case the value is rejecte it will be set to the previous value
@@ -81,11 +81,11 @@
                 property bool postInit: true
                 anchors.verticalCenter: parent.verticalCenter
                 width   : 500
-                step    : 20    // no zero
-                minimum : 20    // 1
-                maximum : 100   // 5
+                step    : 1    // no zero
+                minimum : 1    // 1
+                maximum : 5   // 5
                 ticks   : true
-                unit    : qsTr("%")
+                unit    : ""
                 onReleased  : {
                     vAdjustmentAlarmVolume.doAdjustment( _alarmVolume.value )
                 }