Why does my laptop screen brightness constantly fluctuate?

Question

This has been happening for a couple of weeks. I'm running windows 8 on a toshiba satellite and my brightness will suddenly lower all the way for about a second. This happens like once or twice every minute and it's getting annoying. I tried disabling my adaptive brightness feature but it's still happening.

Answer 1

Many modern Windows laptops now come with light sensors that automatically adjust the screen's brightness based on ambient lighting. The feature works inconsistently in Windows, which can make for a frustrating experience. If the brightness switching is driving you crazy, here's how to disable adaptive brightness.



Go to Control Panel > Hardware and Sound > Power Options, then click on "Change plan settings" next to your active power plan.

Click on "Change advanced power settings."

Scroll down to Display, then under Enable adaptive brightness, switch it off for both the battery and plugged in modes.

Answer 2

Sounds like it's going to sleep. What are your sleep settings configured for? If the PC is at idle for more than 5 minutes while on battery then it will dim all the time if you use it like this (presentations for example).

Answer 3

Try putting a piece of black tape over the camera.

Answer 4

could be power something to do with power settings