Fs2 open on Linux/Graphics Settings
Odds are, you'll want to run fs2_open in a higher resolution than the default 640x480. Unfortunately, we Linux users don't have the swank launcher app that the Windows folks do. Instead, we'll be making a couple line changes to a config file. You will need to run fs2_open once before you can make the necessary changes, otherwise you won't have a configuration directory to work with.
Open up ~/.fs2_open/fs2_open.ini with the text editor of your choice (vi, EMACS, kwrite, gedit). You'll see something like the following:
[Default] VideocardFs2open=OGL -(640x480)x16 bit LastPlayer=MonkeyboyS GammaD3D=1.0
To set fs2_open to use the highest setting possible on retail Freespace 2, change the VideocardFs2open to:
VideocardFs2open=OGL -(1024x768)x32 bit
You can set this to pretty much anything you want as long as it is 4:3, otherwise you will suffer rendering problems and HUD stretching.