Laptop Screen Goes Dim Then Bright
Sep 28, 2009 How dim does it go? Does it go so dim that you can no longer see anything? I have a MacBook Pro also, and I have found that if I'm using my computer on my lap as I'm sitting on the recliner watching TV at night, the screen will dim down and go bright again because it's reacting to the light coming from the TV. I updated to W10 last night, my laptop was fine this morning, but when I turned it on now my screen is very dim. My brightness bar is set to max, and the screen brightness doesn't change at all no matter which direction I move the toggle. I've been to advanced power settings display enable.

A few days ago I noticed my Dell Inspiron 1526 Laptop LCD screen was dim. I checked to make sure the brightness settings were not changed, and that I was using A/C power. My brightness setting is at 100% and my power cord is working fine. I have not spilled anything on my computer. This sort of happened out of the blue. The strange thing is this, When I turn on my computer and it is starting up, the screen is bright and normal. However, while my startup programs are booting up in the taskbar menu in the bottom right corner of the screen, My computer suddenly goes dim.
Laptop Screen Goes Dim Then Bright Light
It is not completely black, but the change is obvious. I don't know if there is some kind of advanced setting that I can look at to see if I can fix this problem myself. I have been told my backlight may need to be replaced, but I find it strange that it is bright when I start up my laptop, but a minute or two later, it dims and stays dim.