It depends on your display, but nowadays the great majority of the monitors have a 16:9 aspect ratio.

Note: I didn’t have this issue in the past as my monitor resolution appeared correctly under “Size”. In order to play Dota 2 with my monitor, I must select “Use my monitor’s current resolution” and also indicate my exact resolution (2560x1080) in the launch options with the following command: -w 2560 -h 1080. I suggest using the advanced settings, but in some cases this option is helpful to solve bugs.įor example, I am currently using a 34 inches ultrawide monitor: the game doesn’t offer a 21:9 aspect ratio in the advanced settings, and my display resolution isn’t listed either. Use my monitor’s current resolution: off. I will show you how to set up each option for maximum performance.

Launch Dota 2, select the Settings icon on the top left, and open the Video tab.