e6520 LCD 'Automatic Brightness' (NOT BACKLIGHT)

Has anybody noticed the brightness change by itself on the e6520 LCD panel?

I am not talking about automatic brightness, I'm referring to when you open a window or close a window the brightness changes...

?

 

Did you check your BIOS setting for brightness? Is your AC adapter plugged in, or are you on battery? Or you may have to call the Ghostbusters..

 

Might be a driver issue, download the latest driver from Nvidia and see what happens. Otherwise, you may want to reinstall Windows.

 

I've noticed this happen on my E5520 as well. It seems to change brightness depending on the white/black level of the window that is open. Brightness adjustments are very subtle however and as long as it doesn't randomly happen, I don't really mind.

Not sure which GPU is driving your display but mine runs on the HD3000, newest drivers.

 

^ahh crap! Yeah, I've got Nvidia and its doing it too. I did a reinstall on a ssd and it still does it.

So stupid, the quality of these laptops has fallen greatly.

 

I thought nearly all laptops with discreet GPU utilizes Optimus except for the ultra high end gaming laptops. Even with the latest Nvidia and Intel drivers does this? Another reason against Optimus..

 

I've seen it dim to 50% when left on battery. Otherwise, can't say I've seen it when changing windows around.

Or maybe something specific to 15" FHD units? zoogle has a E5520, but AFAIK that model doesn't have nVidia. They both have FHD panels, though. Not sure if E5520 and E6520 use the same FHD panel. Might want to check the type in Device Manager. Maybe a power design/backlight problem?

Otherwise, I hope they aren't trying to introduce dynamic contrast ratio or other crap like that to laptops... it's already bad enough it's on some LCD monitors and TVs have it and it changes the backlighting automatically on you...

 

Try disable Intel DPST in Power settings in the Intel GMA Control Panel.