What is the native resolution of your monitor, and what is the refresh rate? I'm not certain why it's having trouble finding a good resolution for you.
It's possible it enumerated the wrong display. The game will always try to run on the "primary" display. If you want to run fullscreen, it might be better to keep the game in windowed mode, but choose a fullscreen resolution, this will give you a "borderless window" fullscreen resolution which other users have said solved their problems.
Let me know if you continue to have difficulties. We want you to be able to play the game the way you want to.
Hello! I'm the Linux developer and I'd like to help you.
First, you should be running the game by executing the run.sh file rather than the rwia executable directly.
Second, you will need the SDL2 image libraries on your system. Assuming you're in Ubuntu, you can install them by opening a terminal window and typing
sudo apt install libsdl2-image-2.0-0
If you have further problems with missing libraries, try searching the name of the library online to find the command you should use to install that library. You should only have to install them once.
