Solved [Solution Given] Full Screen Display/Resolution error

When I go full screen my game gets fuzzy and ugly
the game looks fine windowed though, and doesn't get fuzzy/ugly if I stretch it. It also performs fine windowed or full screen
The problem persists even if I change my resolution to 1024x768. While playing windowed at that resolution it will fill my screen with a bar at the top, displaying just fine. When I hit alt + Enter to go full screen, it gets fuzzy.
Forum won't let me upload image

 

upload to website like imgur, then upload the photo here.

 

it doesn't show up in screenshots fml

 

Take a photo with your phone?

 

IDK, it looks like fullscreen is applying some weird color contrast that makes all of the dithering stand out?

Fullscreen:


Windowed:


It also looks like one of them is stretched/compressed

 

Might help a bit more if you attach a screenshot rather than a photograph taken on your phone

 

I figured out the problem and solution.

Problem: The image was distorted because my display wasn't scaling the lower resolution to a higher resolution properly.

Solution: Enable your GPU to handle the scaling for applications

For IntelHD Graphics:
right click desktop > Intel HD Graphics settings > Display > Scale Full Screen > check the Override Application Settings box

For Nvidia:
Right click desktop > Nvidia Control Panel > Adjust The Size And Position Of The Desktop > Select A Scale Mode > Fullscreen

For AMD:
alt + R to open Radeon Software > Gaming > Global Display > enable GPU Scaling / Integer Scaling

I'd just like to mention that apparently nobody other than me runs into these issues on an AMD card because NOBODY had the AMD instructions, just the Nvidia/Intel equivalent

 

Glad you were able to find it out and thank you for providing your solution