Screen going dim

[count_zero99uk]

Ok, so i seem to be having an odd issue on windows 10, if i leave my computer on for some time when i come back the screen is dimmer.  If i just open up display settings it reverts to its normal brightness.

 

I cant find any setting to do with adaptive brightness, or a power sleep setting or something.  Its very odd.

 

Its a desktop PC that hasnt had this issue before and it seems to have only appeared in the last couple of weeks.

 

Any suggestions would be helpful

Thanks.

[GoodBytes]

It's not Windows. it is a software that you installed that communicates with the monitor to adjust the brightness, or your GPU drivers, or the software just darkens the screen with a semi-transparent color window that it full screen on your screen.

 

While Windows does have this feature, it is for laptop displays. It uses a different protocol to desktop displays.

For Desktop Displays, Windows does have the API, but aren't used by any feature or user accessible panels.