here's a solution to dimming surfaces even if the adjust screen is off

[onysi]

I thought it was a software problem because even if I turn off the automatically adjust screen, it still does it.
I came across this site that lets you go on control panel of the desktop side to fix it.

How to stop erratic screen dimming on Surface Pro tablets. | glasskeys.com


basically put 100% on both options under Dimmed display brightness.

just play with the settings.

 

[Laura Knotek]

Nice find. That will be helpful to a lot of Surface 2 owners.

 

[Rayban7]

Mine was already set to off and changing other settings under display didn't fix my problem.
Here's my problem from another post:
At night in bed I turn the brightness level down all the way. I notice when scrolling through the start menu/screen it consistently fluctuates the screen brightness when I'm at different parts of the menu.
Is this a known issue or is it my surface?
If it doesn't make sense I can try and make a quick video to demonstrate.

 

[Magnus Rydningen]

it's some sort of dynamic contrast by adjusting the backlight, but at a dim screen the adjustmenst are way to big and you notice them. I think it was the same on the old surface 2 and I don't know of any solution right now :/

 

[onysi]

Mine was already set to off and changing other settings under display didn't fix my problem.
Here's my problem from another post:
At night in bed I turn the brightness level down all the way. I notice when scrolling through the start menu/screen it consistently fluctuates the screen brightness when I'm at different parts of the menu.
Is this a known issue or is it my surface?
If it doesn't make sense I can try and make a quick video to demonstrate.

Did you try going to these both options and change the percentage to 100%?
Here's what mine looks like. Seems like your problem was the one I had. It auto dims because of battery conservation.