Pick the ‘Native’ option which will match your screen’s current resolution. There’s a dedicated dropdown for the resolution. Go to the game’s settings and select the Video tab. You can check the game’s settings and see if you’ve set the correct resolution in the game itself. Before using a command-line switch like this on a game, make sure that the game itself is compatible with it.Īs for why Team Fortress 2 runs with the incorrect resolution, it’s hard to say. The difference between this command and the resolution one is that some games may not be able to run with the version of DirectX that you enter in which case, the game will fail to launch. You can also use it to run a game with a specific version of DirectX for example, you can use -dxlevel 90 if you want to run a game with DirectX v9.0.
This will work for other games too and there are other commands you can enter in the launch options. If you don’t want the app to run in windowed mode, you can skip the -windowed part. The command given above will run the game in windowed mode.