about 3 years ago - AndrewT - Direct link
Has this always happened? Or the game was okay on this machine up to some point?


DXDIAG is a program you run from a command prompt or the Windows start menu 'run' dialog box (or 'search programs' in Windows 7 or later). After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach your Documents/Paradox/Stellaris/settings.txt and pdx_settings.txt .
From your Documents/Paradox/Stellaris/logs/ folder, attach system.log , error.log .  
about 3 years ago - AndrewT - Direct link
If you click on Settings in that cutoff image, what resolution shows in the game? Because if it is what's in the settings files 1280x720 it's hard to see why it would be cut off. According to the system.log 1920x1080 at 59hz or 29hz is supported on this hardware (but no more than that).

I assume it makes no difference if its fullScreen, borderless or windowed mode?

There are newer nVidia driver versions, so you may as well update to the latest:
Download Drivers | NVIDIA
And I see you have gui_scale=2.000000 , try reducing that to 1 while we work on this.