I have a Dell Inspiron 14z Ultrabook with the integrated "Intel HD Graphics 4000" chip. Recently I got my screen replaced by Dell under my warranty.
Now that I have my laptop back, I've noticed that when not plugged in to a power source, the screen brightness constantly changes based on what's on the screen. It's very irritating! I spent a long time trying to find a solution, but to no avail. (Though many have had the problem.)
I've gone into the "Power" section on the Intel Graphics Control Panel, and ticked "Off" beside "Display Power Saving Technology" and "Maximum Performance" under "Power Plan." I've restarted my PC and reinstalled the driver.
Can anyone help me out?