Re: Different levels of brightness in windowed mode vs. fullscreen

I do not have this issue and my roommate does not have this issue,HOWEVER. I have experienced this in games in the past sadly however I dont remember the fix so at best I can only share what I know,

I left a screen shot that shows what you need to find. I believe it is something along the lines of  Window "Compression" and It might be here but ti also might be in the Nvidia settings. and to put it simply, when a game would get windowed, the brightness wouldnt get brighter, it was the rendering of the lighting that was getting brighter then when you would alt-enter it would get super dark, So I my brain says it might be something inside Nvidia's menu? I dont belive this to be a fault of the game more so a Nvidia or Windows setting,

Some games get help from Nvidia to help fiddle with their settings (To over-ride them) which is why some games dont have issues or dont act the same as others, However that usually requires Nvidia getting some exclusive graphics or settings that AMD users would not have access to. Thankfully the devs have opted out of that under-table marketing. So it means that you'll have to finaggle the settings. (Which is something I dont miss with Nvidia) 

Since i have had AMD for the last 2 years my memory on Nvidia settings has gotten a little hazy, However I hope this helps put you in the right direction.