dell n4030 inspiron
core i5
Press “Windows key + C” or swipe in from the right hand side of the screen to display the Charms bar. Click “Settings” followed by “Control Panel” and then open the “Power Options” applet.
You will see that one of the available power plans is selected. To change the options relating to it, click the “Change plan settings” link
There are two sliders that can be used to adjust the brightness level that should be used when your laptop is plugged in to power, and when it is running on battery. You can configure these to your liking, but to disable level changing completely, click the “Change advanced power settings” link.
In the list of settings, scroll down to the “Display” section and click the “+” icon to expand it. Then expand the “Enable adaptive brightness” section to reveal the options.
It is possible to choose different settings depending on whether your laptop is plugged in or not. Use the two drop down menus to turn adaptive brightness “On” or “Off” as you want.
Having chosen your settings, click “OK”
